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(-) Description

Title :  CRYSTAL STRUCTURE OF LEUA FROM MYCOBACTERIUM TUBERCULOSIS
 
Authors :  N. Koon, C. J. Squire, E. N. Baker
Date :  22 Mar 04  (Deposition) - 18 May 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Tim Barrel, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  N. Koon, C. J. Squire, E. N. Baker
Crystal Structure Of Leua From Mycobacterium Tuberculosis, A Key Enzyme In Leucine Biosynthesis
Proc. Natl. Acad. Sci. Usa V. 101 8295 2004
PubMed-ID: 15159544  |  Reference-DOI: 10.1073/PNAS.0400820101
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 2-ISOPROPYLMALATE SYNTHASE
    Chains: A, B
    EC Number: 2.3.3.13
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: MYCOBACTERIUM TUBERCULOSIS
    Organism Taxid: 1773
    Synonym: ALPHA-ISOPROPYLMALATE SYNTHASE, LEUA, ALPHA-IPM SYNTHETASE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 27)

Asymmetric/Biological Unit (4, 27)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
2KIV2Ligand/Ion3-METHYL-2-OXOBUTANOIC ACID
3MSE22Mod. Amino AcidSELENOMETHIONINE
4ZN2Ligand/IonZINC ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP B:81 , HIS B:285 , HIS B:287 , KIV B:702 , HOH B:1257BINDING SITE FOR RESIDUE ZN B 703
2AC2SOFTWAREASP A:81 , HIS A:285 , HIS A:287 , KIV A:701 , HOH A:1108BINDING SITE FOR RESIDUE ZN A 704
3AC3SOFTWAREGLY A:533 , PRO A:534 , LEU A:535 , ILE B:627BINDING SITE FOR RESIDUE CL A 705
4AC4SOFTWAREARG A:80 , ASP A:81 , HIS A:167 , SER A:216 , GLU A:218 , PRO A:252 , THR A:254 , HIS A:285 , HIS A:287 , ZN A:704 , HOH A:1019BINDING SITE FOR RESIDUE KIV A 701
5AC5SOFTWAREARG B:80 , ASP B:81 , GLU B:218 , PRO B:252 , THR B:254 , HIS B:285 , HIS B:287 , ZN B:703 , HOH B:1029 , HOH B:1257BINDING SITE FOR RESIDUE KIV B 702

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1SR9)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Arg A:493 -Pro A:494
2Arg B:493 -Pro B:494

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1SR9)

(-) PROSITE Motifs  (3, 6)

Asymmetric/Biological Unit (3, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PYR_CTPS50991 Pyruvate carboxyltransferase domain.LEU1_MYCTO72-346
 		  2A:72-346
B:72-346
LEU1_MYCTU72-346
 		  2A:72-346
B:72-346
2AIPM_HOMOCIT_SYNTH_1PS00815 Alpha-isopropylmalate and homocitrate synthases signature 1.LEU1_MYCTO79-95
 		  2A:79-95
B:79-95
LEU1_MYCTU79-95
 		  2A:79-95
B:79-95
3AIPM_HOMOCIT_SYNTH_2PS00816 Alpha-isopropylmalate and homocitrate synthases signature 2.LEU1_MYCTO282-295
 		  2A:282-295
B:282-295
LEU1_MYCTU282-295
 		  2A:282-295
B:282-295

(-) Exons   (0, 0)

(no "Exon" information available for 1SR9)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:573
 aligned with LEU1_MYCTO | P9WQB2 from UniProtKB/Swiss-Prot  Length:644

    Alignment length:626
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637      
           LEU1_MYCTO    18 TIVKPAGPPRVGQPSWNPQRASSMPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPMSPARKRRMFDLLVRMGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEMTTPNVYADSIEWMSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAMKLDADAADCDVDDMLWQVPYLPIDPRDVGRTYEAVIRVNSQSGKGGVAYIMKTDHGLSLPRRLQIEFSQVIQKIAEGTAGEGGEVSPKEMWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAMSAGDDAQAAAYVEASVTIASPAQPGEAGRHASDPVTIASPAQPGEAGRHASDPVTSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
               SCOP domains -------------------------------------------d1sr9a2 A:61-370 2-isopropylmalate synthase LeuA, catalytic domain                                                                                                                                                                                                                                                    --------------------------------------------------------       ---d1sr9a1 A:437-491                                      d1sr9a3 A:492-643 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain                                                                      SCOP domains
               CATH domains -------------------------------1sr9A01 A:49-425 Aldolase class I                                                                                                                                                                                                                                                                                                                                                        -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................hhhhh.hhhhhh........hhhhh......eeee...hhhhhh.....hhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh.......eeeeeee.hhhhhhhhhhhhh...eeeeeeeee.hhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhhhhhhhhhhhhhhhhhhh......eeeeeee.....hhhhhhhhhhhhhhhh.hhh.eeeeeee.....hhhhhhhhhhhh...eeeehhhhh.......hhhhhhhhhhh..........hhhhhhhhhhhhhh...............ee.hhhhhhhhhhhhhhhhhhhhhh..hhhhh.........hhhhhh...ee..-------..hhhhhhhhhhh...hhhhhhhhhhhhhh.---------..hhhhhhhhhhhhhh.....eeeeeeeee........eeeeeeeee..eeeeeeeee.hhhhhhhhhhhh...eeeeeeeeeee........eeeeeeeeee.-------------------------------------.eeeeeeeee.hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------------------------------------------------------PYR_CT  PDB: A:72-346 UniProt: 72-346                                                                                                                                                                                                                                              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AIPM_HOMOCIT_S------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (3)
                PROSITE (4) -------------------------------------------------------------AIPM_HOMOCIT_SYNT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (4)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sr9 A  18 TIVKPAGPPRVGQPSWNPQRASSmPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPmSPARKRRmFDLLVRmGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEmTTPNVYADSIEWmSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAmKLDADAADCDVDDmLWQVPYLPIDPRDVGRTYEAVI-------KGGVAYImKTDHGLSLPRRLQIEFSQVIQKI---------EVSPKEmWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAmSAGDDAQAAAYVEASVTI-------------------------------------SKTVWGVGIAPSITTASLRAVVSAVNRAA 643
                                    27        37   |    47        57        67        77        87  |     97|      107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267  |    277       287       297       307       317       327       337       347       357       367       377       387  |    397      |407       417        |-      |437   |   447       457      |  -      |477  |    487       497       507       517       527       537       547       557 |     567       577         -         -         -       617       627       637      
                                                  41-MSE                                           90-MSE  98-MSE  |                                                                                                                                                     257-MSE      270-MSE                                                                                                                 390-MSE       404-MSE               426     434      |                    464       474     |                                                                            559-MSE           577                                   615                            
                                                                                                                 105-MSE                                                                                                                                                                                                                                                                                                                                         441-MSE                                480-MSE                                                                                                                                                               


Chain A from PDB  Type:PROTEIN  Length:573
 aligned with LEU1_MYCTU | P9WQB3 from UniProtKB/Swiss-Prot  Length:644

    Alignment length:626
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637      
           LEU1_MYCTU    18 TIVKPAGPPRVGQPSWNPQRASSMPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPMSPARKRRMFDLLVRMGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEMTTPNVYADSIEWMSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAMKLDADAADCDVDDMLWQVPYLPIDPRDVGRTYEAVIRVNSQSGKGGVAYIMKTDHGLSLPRRLQIEFSQVIQKIAEGTAGEGGEVSPKEMWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAMSAGDDAQAAAYVEASVTIASPAQPGEAGRHASDPVTIASPAQPGEAGRHASDPVTSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
               SCOP domains -------------------------------------------d1sr9a2 A:61-370 2-isopropylmalate synthase LeuA, catalytic domain                                                                                                                                                                                                                                                    --------------------------------------------------------       ---d1sr9a1 A:437-491                                      d1sr9a3 A:492-643 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain                                                                      SCOP domains
               CATH domains -------------------------------1sr9A01 A:49-425 Aldolase class I                                                                                                                                                                                                                                                                                                                                                        -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................hhhhh.hhhhhh........hhhhh......eeee...hhhhhh.....hhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh.......eeeeeee.hhhhhhhhhhhhh...eeeeeeeee.hhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhhhhhhhhhhhhhhhhhhh......eeeeeee.....hhhhhhhhhhhhhhhh.hhh.eeeeeee.....hhhhhhhhhhhh...eeeehhhhh.......hhhhhhhhhhh..........hhhhhhhhhhhhhh...............ee.hhhhhhhhhhhhhhhhhhhhhh..hhhhh.........hhhhhh...ee..-------..hhhhhhhhhhh...hhhhhhhhhhhhhh.---------..hhhhhhhhhhhhhh.....eeeeeeeee........eeeeeeeee..eeeeeeeee.hhhhhhhhhhhh...eeeeeeeeeee........eeeeeeeeee.-------------------------------------.eeeeeeeee.hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ------------------------------------------------------PYR_CT  PDB: A:72-346 UniProt: 72-346                                                                                                                                                                                                                                              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) -------------------------------------------------------------AIPM_HOMOCIT_SYNT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (4) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AIPM_HOMOCIT_S------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (4)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sr9 A  18 TIVKPAGPPRVGQPSWNPQRASSmPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPmSPARKRRmFDLLVRmGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEmTTPNVYADSIEWmSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAmKLDADAADCDVDDmLWQVPYLPIDPRDVGRTYEAVI-------KGGVAYImKTDHGLSLPRRLQIEFSQVIQKI---------EVSPKEmWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAmSAGDDAQAAAYVEASVTI-------------------------------------SKTVWGVGIAPSITTASLRAVVSAVNRAA 643
                                    27        37   |    47        57        67        77        87  |     97|      107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267  |    277       287       297       307       317       327       337       347       357       367       377       387  |    397      |407       417        |-      |437   |   447       457      |  -      |477  |    487       497       507       517       527       537       547       557 |     567       577         -         -         -       617       627       637      
                                                  41-MSE                                           90-MSE  98-MSE  |                                                                                                                                                     257-MSE      270-MSE                                                                                                                 390-MSE       404-MSE               426     434      |                    464       474     |                                                                            559-MSE           577                                   615                            
                                                                                                                 105-MSE                                                                                                                                                                                                                                                                                                                                         441-MSE                                480-MSE                                                                                                                                                               


Chain B from PDB  Type:PROTEIN  Length:577
 aligned with LEU1_MYCTO | P9WQB2 from UniProtKB/Swiss-Prot  Length:644

    Alignment length:626
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637      
           LEU1_MYCTO    18 TIVKPAGPPRVGQPSWNPQRASSMPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPMSPARKRRMFDLLVRMGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEMTTPNVYADSIEWMSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAMKLDADAADCDVDDMLWQVPYLPIDPRDVGRTYEAVIRVNSQSGKGGVAYIMKTDHGLSLPRRLQIEFSQVIQKIAEGTAGEGGEVSPKEMWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAMSAGDDAQAAAYVEASVTIASPAQPGEAGRHASDPVTIASPAQPGEAGRHASDPVTSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
               SCOP domains -------------------------------------------d1sr9b2 B:61-370 2-isopropylmalate synthase LeuA, catalytic domain                                                                                                                                                                                                                                                    -----------------------------------------------------------    ---d1sr9b1 B:437-491                                      d1sr9b3 B:492-643 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain                                                                      SCOP domains
               CATH domains -----1sr9B01 B:23-368 Aldolase class I                                                                                                                                                                                                                                                                                                                         ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................hhhhh.hhhhhh........hhhhh......eeee...hhhhhh.....hhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh.......eeeeee..hhhhhhhhhhhh....eeeeeeeee.hhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhhhhhhhhhhhhhhhhhhh......eeeeeee.....hhhhhhhhhhhhhhhh.hhh.eeeeeee.....hhhhhhhhhhhh...eeeehhhhh.......hhhhhhhhhhh..........hhhhhhhhhhhhhh...............ee.hhhhhhhhhhhhhhhhhhhhhh..hhhhh.........hhhhhh...ee.....----..hhhhhhhhhhh...hhhhhhhhhhhhhh-----------.hhhhhhhhhhhhhh.....eeeeeeeeee.......eeeeeeeee..eeeeeeeee.hhhhhhhhhhh...eeeeeeeeeeeee......eeeeeeeeeeee..----------------------------------.eeeeeeeeee.hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------------------------------------------------------PYR_CT  PDB: B:72-346 UniProt: 72-346                                                                                                                                                                                                                                              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AIPM_HOMOCIT_S------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (3)
                PROSITE (4) -------------------------------------------------------------AIPM_HOMOCIT_SYNT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (4)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sr9 B  18 TIVKPAGPPRVGQPSWNPQRASSmPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPmSPARKRRmFDLLVRmGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEmTTPNVYADSIEWmSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAmKLDADAADCDVDDmLWQVPYLPIDPRDVGRTYEAVIRVN----KGGVAYImKTDHGLSLPRRLQIEFSQVIQK-----------VSPKEmWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAmSAGDDAQAAAYVEASVTIAS----------------------------------TSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
                                    27        37   |    47        57        67        77        87  |     97|      107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267  |    277       287       297       307       317       327       337       347       357       367       377       387  |    397      |407       417       427 |    |437   |   447       457     |   -       477  |    487       497       507       517       527       537       547       557 |     567       577 |       -         -         -      |617       627       637      
                                                  41-MSE                                           90-MSE  98-MSE  |                                                                                                                                                     257-MSE      270-MSE                                                                                                                 390-MSE       404-MSE                  429  434      |                   463         475    |                                                                            559-MSE             579                                614                             
                                                                                                                 105-MSE                                                                                                                                                                                                                                                                                                                                         441-MSE                                480-MSE                                                                                                                                                               


Chain B from PDB  Type:PROTEIN  Length:577
 aligned with LEU1_MYCTU | P9WQB3 from UniProtKB/Swiss-Prot  Length:644

    Alignment length:626
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637      
           LEU1_MYCTU    18 TIVKPAGPPRVGQPSWNPQRASSMPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPMSPARKRRMFDLLVRMGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEMTTPNVYADSIEWMSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAMKLDADAADCDVDDMLWQVPYLPIDPRDVGRTYEAVIRVNSQSGKGGVAYIMKTDHGLSLPRRLQIEFSQVIQKIAEGTAGEGGEVSPKEMWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAMSAGDDAQAAAYVEASVTIASPAQPGEAGRHASDPVTIASPAQPGEAGRHASDPVTSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
               SCOP domains -------------------------------------------d1sr9b2 B:61-370 2-isopropylmalate synthase LeuA, catalytic domain                                                                                                                                                                                                                                                    -----------------------------------------------------------    ---d1sr9b1 B:437-491                                      d1sr9b3 B:492-643 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain                                                                      SCOP domains
               CATH domains -----1sr9B01 B:23-368 Aldolase class I                                                                                                                                                                                                                                                                                                                         ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................hhhhh.hhhhhh........hhhhh......eeee...hhhhhh.....hhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh.......eeeeee..hhhhhhhhhhhh....eeeeeeeee.hhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhhhhhhhhhhhhhhhhhhh......eeeeeee.....hhhhhhhhhhhhhhhh.hhh.eeeeeee.....hhhhhhhhhhhh...eeeehhhhh.......hhhhhhhhhhh..........hhhhhhhhhhhhhh...............ee.hhhhhhhhhhhhhhhhhhhhhh..hhhhh.........hhhhhh...ee.....----..hhhhhhhhhhh...hhhhhhhhhhhhhh-----------.hhhhhhhhhhhhhh.....eeeeeeeeee.......eeeeeeeee..eeeeeeeee.hhhhhhhhhhh...eeeeeeeeeeeee......eeeeeeeeeeee..----------------------------------.eeeeeeeeee.hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ------------------------------------------------------PYR_CT  PDB: B:72-346 UniProt: 72-346                                                                                                                                                                                                                                              --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) -------------------------------------------------------------AIPM_HOMOCIT_SYNT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (4) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AIPM_HOMOCIT_S------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (4)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sr9 B  18 TIVKPAGPPRVGQPSWNPQRASSmPVNRYRPFAEEVEPIRLRNRTWPDRVIDRAPLWCAVDLRDGNQALIDPmSPARKRRmFDLLVRmGYKEIEVGFPSASQTDFDFVREIIEQGAIPDDVTIQVLTQCRPELIERTFQACSGAPRAIVHFYNSTSILQRRVVFRANRAEVQAIATDGARKCVEQAAKYPGTQWRFEYSPESYTGTELEYAKQVCDAVGEVIAPTPERPIIFNLPATVEmTTPNVYADSIEWmSRNLANRESVILSLHPHNDRGTAVAAAELGFAAGADRIEGCLFGNGERTGNVCLVTLGLNLFSRGVDPQIDFSNIDEIRRTVEYCNQLPVHERHPYGGDLVYTAFSGSHQDAINKGLDAmKLDADAADCDVDDmLWQVPYLPIDPRDVGRTYEAVIRVN----KGGVAYImKTDHGLSLPRRLQIEFSQVIQK-----------VSPKEmWDAFAEEYLAPVRPLERIRQHVDAADDDGGTTSITATVKINGVETEISGSGNGPLAAFVHALADVGFDVAVLDYYEHAmSAGDDAQAAAYVEASVTIAS----------------------------------TSKTVWGVGIAPSITTASLRAVVSAVNRAA 643
                                    27        37   |    47        57        67        77        87  |     97|      107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267  |    277       287       297       307       317       327       337       347       357       367       377       387  |    397      |407       417       427 |    |437   |   447       457     |   -       477  |    487       497       507       517       527       537       547       557 |     567       577 |       -         -         -      |617       627       637      
                                                  41-MSE                                           90-MSE  98-MSE  |                                                                                                                                                     257-MSE      270-MSE                                                                                                                 390-MSE       404-MSE                  429  434      |                   463         475    |                                                                            559-MSE             579                                614                             
                                                                                                                 105-MSE                                                                                                                                                                                                                                                                                                                                         441-MSE                                480-MSE
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (3, 6)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1SR9)

(-) Gene Ontology  (16, 24)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (LEU1_MYCTU | P9WQB3)
molecular function
    GO:0003852    2-isopropylmalate synthase activity    Catalysis of the reaction: 3-methyl-2-oxobutanoate + acetyl-CoA + H(2)O = (2S)-2-isopropylmalate + CoA + H(+).
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0000287    magnesium ion binding    Interacting selectively and non-covalently with magnesium (Mg) ions.
    GO:0030145    manganese ion binding    Interacting selectively and non-covalently with manganese (Mn) ions.
    GO:0030955    potassium ion binding    Interacting selectively and non-covalently with potassium (K+) ions.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0046912    transferase activity, transferring acyl groups, acyl groups converted into alkyl on transfer    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor), with the acyl group being converted into alkyl on transfer.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0009082    branched-chain amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    GO:0019752    carboxylic acid metabolic process    The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
    GO:0008652    cellular amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
    GO:0040007    growth    The increase in size or mass of an entire organism, a part of an organism or a cell.
    GO:0009098    leucine biosynthetic process    The chemical reactions and pathways resulting in the formation of leucine, 2-amino-4-methylpentanoic acid.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain A,B   (LEU1_MYCTO | P9WQB2)
molecular function
    GO:0003852    2-isopropylmalate synthase activity    Catalysis of the reaction: 3-methyl-2-oxobutanoate + acetyl-CoA + H(2)O = (2S)-2-isopropylmalate + CoA + H(+).
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0046912    transferase activity, transferring acyl groups, acyl groups converted into alkyl on transfer    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor), with the acyl group being converted into alkyl on transfer.
biological process
    GO:0009082    branched-chain amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    GO:0019752    carboxylic acid metabolic process    The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
    GO:0008652    cellular amino acid biosynthetic process    The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
    GO:0009098    leucine biosynthetic process    The chemical reactions and pathways resulting in the formation of leucine, 2-amino-4-methylpentanoic acid.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        LEU1_MYCTO | P9WQB2: 3fig 3hps 3hpx 3hpz 3hq1 3u6w
        LEU1_MYCTU | P9WQB3: 3fig 3hps 3hpx 3hpz 3hq1 3u6w

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1SR9)