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(-) Description

Title :  CRYSTAL STRUCTURE OF ISOCITRATE LYASE FROM MYCOBACTERIUM TUBERCULOSIS
 
Authors :  V. Sharma, S. Sharma, K. H. Hoener Zu Bentrup, J. D. Mckinney, D. G. Rus W. R. Jacobs Jr. , J. C. Sacchettini, Tb Structural Genomics Conso (Tbsgc)
Date :  19 Jun 00  (Deposition) - 30 Aug 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Alpha-Beta Barrel, Swapped Helices, Apo-Enzyme, Open Conformation, Structural Genomics, Psi, Protein Structure Initiative, Tb Structural Genomics Consortium, Tbsgc, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  V. Sharma, S. Sharma, K. Hoener Zu Bentrup, J. D. Mckinney, D. G. Russell, W. R. Jacobs Jr. , J. C. Sacchettini
Structure Of Isocitrate Lyase, A Persistence Factor Of Mycobacterium Tuberculosis.
Nat. Struct. Biol. V. 7 663 2000
PubMed-ID: 10932251  |  Reference-DOI: 10.1038/77964

(-) Compounds

Molecule 1 - ISOCITRATE LYASE
    ChainsA, B
    EC Number4.1.3.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET30B
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism ScientificMYCOBACTERIUM TUBERCULOSIS H37RV
    Organism Taxid83332
    StrainH37RV

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (2x)AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1MG2Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:108 , GLU A:155 , HOH A:575 , HOH A:690 , HOH A:699BINDING SITE FOR RESIDUE MG A 451
2AC2SOFTWAREASP B:108 , GLU B:155 , HOH B:595 , HOH B:635 , HOH B:705BINDING SITE FOR RESIDUE MG B 452

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1F61)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1F61)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1F61)

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ISOCITRATE_LYASEPS00161 Isocitrate lyase signature.ACEA_MYCTU189-194
 
  2A:189-194
B:189-194
ACEA1_MYCTO189-194
 
  2A:189-194
B:189-194
Biological Unit 1 (1, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ISOCITRATE_LYASEPS00161 Isocitrate lyase signature.ACEA_MYCTU189-194
 
  4A:189-194
B:189-194
ACEA1_MYCTO189-194
 
  4A:189-194
B:189-194

(-) Exons   (0, 0)

(no "Exon" information available for 1F61)

(-) Sequences/Alignments

Asymmetric 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:418
 aligned with ACEA1_MYCTO | P9WKK6 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        
          ACEA1_MYCTO     1 MSVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
               SCOP domains d1f61a_ A: Isocitrate lyase                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1f61A00 A:1-418 Phosphoenolpyruvate-binding domains                                                                                                                                                                                                                                                                                                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhh......hhhhhhhh.......hhhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhh....eeehhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhh..........eeee......hhhhhhhhhhhhhhhh..eeeee..hhhhh........ee.hhhhhhhhhhhhhhhhhhh....eeeeee......ee.......hhh.eeeee.....eee..hhhhhhhhhhhhhhhh.eeee.....hhhhhhhhhhhhhh.....eeeee.....hhhhhhhhhhhhhhhhhhhhh.eeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISOCIT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1f61 A   1 ASVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        

Chain A from PDB  Type:PROTEIN  Length:418
 aligned with ACEA_MYCTU | P9WKK7 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        
           ACEA_MYCTU     1 MSVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
               SCOP domains d1f61a_ A: Isocitrate lyase                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1f61A00 A:1-418 Phosphoenolpyruvate-binding domains                                                                                                                                                                                                                                                                                                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhh......hhhhhhhh.......hhhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhh....eeehhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhh..........eeee......hhhhhhhhhhhhhhhh..eeeee..hhhhh........ee.hhhhhhhhhhhhhhhhhhh....eeeeee......ee.......hhh.eeeee.....eee..hhhhhhhhhhhhhhhh.eeee.....hhhhhhhhhhhhhh.....eeeee.....hhhhhhhhhhhhhhhhhhhhh.eeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISOCIT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1f61 A   1 ASVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        

Chain B from PDB  Type:PROTEIN  Length:418
 aligned with ACEA1_MYCTO | P9WKK6 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        
          ACEA1_MYCTO     1 MSVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
               SCOP domains d1f61b_ B: Isocitrate lyase                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1f61B00 B:1-418 Phosphoenolpyruvate-binding domains                                                                                                                                                                                                                                                                                                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhh......hhhhhhhhh......hhhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhh....eeehhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhh..........eeee......hhhhhhhhhhhhhhhh..eeeee..hhhhh........ee.hhhhhhhhhhhhhhhhhhh....eeeeee......ee.......hhh.eeeee.....eee..hhhhhhhhhhhhhhhh.eeee.....hhhhhhhhhhhhhhhh...eeeee.....hhhhhhhhhhhhhhhhhhhhh.eeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISOCIT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1f61 B   1 ASVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        

Chain B from PDB  Type:PROTEIN  Length:418
 aligned with ACEA_MYCTU | P9WKK7 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        
           ACEA_MYCTU     1 MSVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
               SCOP domains d1f61b_ B: Isocitrate lyase                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1f61B00 B:1-418 Phosphoenolpyruvate-binding domains                                                                                                                                                                                                                                                                                                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhh......hhhhhhhhh......hhhhhhhhhhhhhhhhhh..eeee...hhhhhhhhhhh....eeehhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhh..........eeee......hhhhhhhhhhhhhhhh..eeeee..hhhhh........ee.hhhhhhhhhhhhhhhhhhh....eeeeee......ee.......hhh.eeeee.....eee..hhhhhhhhhhhhhhhh.eeee.....hhhhhhhhhhhhhhhh...eeeee.....hhhhhhhhhhhhhhhhhhhhh.eeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ISOCIT-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1f61 B   1 ASVVGTPKSAEQIQQEWDTNPRWKDVTRTYSAEDVVALQGSVVEEHTLARRGAEVLWEQLHDLEWVNALGALTGNMAVQQVRAGLKAIYLSGWQVAGDANLSGHTYPDQSLYPANSVPQVVRRINNALQRADQIAKIEGDTSVENWLAPIVADGEAGFGGALNVYELQKALIAAGVAGSHWEDQLASEKKCGHLGGKVLIPTQQHIRTLTSARLAADVADVPTVVIARTDAEAATLITSDVDERDQPFITGERTREGFYRTKNGIEPCIARAKAYAPFADLIWMETGTPDLEAARQFSEAVKAEYPDQMLAYNCSPSFNWKKHLDDATIAKFQKELAAMGFKFQFITLAGFHALNYSMFDLAYGYAQNQMSAYVELQEREFAAEERGYTATKHQREVGAGYFDRIATTVDPNSSTTAL 418
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410        

   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  (1, 2)

Asymmetric Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1F61)

(-) Gene Ontology  (20, 29)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (ACEA_MYCTU | P9WKK7)
molecular function
    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:0004451    isocitrate lyase activity    Catalysis of the reaction: isocitrate = glyoxylate + succinate.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0046421    methylisocitrate lyase activity    Catalysis of the reaction: (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate = pyruvate + succinate.
    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: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:0071456    cellular response to hypoxia    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0006097    glyoxylate cycle    A modification of the TCA cycle occurring in some plants and microorganisms, in which isocitrate is cleaved to glyoxylate and succinate. Glyoxylate can then react with acetyl-CoA to form malate.
    GO:0006102    isocitrate metabolic process    The chemical reactions and pathways involving isocitrate, the anion of isocitric acid, 1-hydroxy-1,2,3-propanetricarboxylic acid. Isocitrate is an important intermediate in the TCA cycle and the glycoxylate cycle.
    GO:0075141    maintenance of symbiont tolerance to host environment    Any process that contributes to the maintenance of a physiologic state in which the symbiont immune system does not react destructively against the components of its host organism. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
    GO:0010034    response to acetate    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an acetate stimulus.
    GO:0001101    response to acid chemical    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus by the chemical structure of the anion portion of a dissociated acid (rather than the acid acting as a proton donor). The acid chemical may be in gaseous, liquid or solid form.
    GO:0070542    response to fatty acid    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a fatty acid stimulus.
    GO:0052572    response to host immune response    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detecting the immune response of the host organism. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    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   (ACEA1_MYCTO | P9WKK6)
molecular function
    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:0004451    isocitrate lyase activity    Catalysis of the reaction: isocitrate = glyoxylate + succinate.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0046421    methylisocitrate lyase activity    Catalysis of the reaction: (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate = pyruvate + succinate.
biological process
    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:0006097    glyoxylate cycle    A modification of the TCA cycle occurring in some plants and microorganisms, in which isocitrate is cleaved to glyoxylate and succinate. Glyoxylate can then react with acetyl-CoA to form malate.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.

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  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick

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 Related Entries

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

UniProtKB/Swiss-Prot
        ACEA1_MYCTO | P9WKK61f8i 1f8m
        ACEA_MYCTU | P9WKK71f8i 1f8m 5dql

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1F61)