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(-) Description

Title :  CRYSTAL STRUCTURE OF SERINE ACETYLTRANSFERASE FROM E.COLI AT 2.2A
 
Authors :  V. E. Pye, A. P. Tingey, R. L. Robson, P. C. E. Moody
Date :  26 Apr 04  (Deposition) - 13 Jul 04  (Release) - 07 Nov 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Keywords :  Left-Handed-Beta-Helix, Dimer Of Trimers, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  V. E. Pye, A. P. Tingey, R. L. Robson, P. C. E. Moody
The Structure And Mechanism Of Serine Acetyltransferase Fro Escherichia Coli
J. Biol. Chem. V. 279 40729 2004
PubMed-ID: 15231846  |  Reference-DOI: 10.1074/JBC.M403751200

(-) Compounds

Molecule 1 - SERINE ACETYLTRANSFERASE
    ChainsA, B, C
    EC Number2.3.1.30
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPCOCE3
    Expression System StrainB834
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneCYSE, B3607, C4429, Z5034, ECS4485, SF3646, S4122
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    SynonymSAT

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (2x)ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 30)

Asymmetric Unit (2, 30)
No.NameCountTypeFull Name
1CYS3Mod. Amino AcidCYSTEINE
2MSE27Mod. Amino AcidSELENOMETHIONINE
Biological Unit 1 (2, 60)
No.NameCountTypeFull Name
1CYS6Mod. Amino AcidCYSTEINE
2MSE54Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:92 , PRO A:93 , ASP A:157 , HIS A:158 , HOH A:285 , GLY B:184 , ARG B:192 , HIS B:193 , HOH B:714 , HOH B:735BINDING SITE FOR RESIDUE CYS B 501
2AC2SOFTWAREASP B:92 , PRO B:93 , ASP B:157 , HIS B:158 , HOH B:739 , GLY C:184 , ARG C:192 , HIS C:193 , HOH C:295 , HOH C:338BINDING SITE FOR RESIDUE CYS B 601
3AC3SOFTWAREGLY A:184 , ARG A:192 , HIS A:193 , HOH A:310 , HOH B:736 , ASP C:92 , PRO C:93 , ASP C:157 , HIS C:158 , HOH C:275BINDING SITE FOR RESIDUE CYS B 701

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1T3D)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Val A:239 -Pro A:240
2Val B:239 -Pro B:240
3Val C:239 -Pro C:240

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1T3D)

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HEXAPEP_TRANSFERASESPS00101 Hexapeptide-repeat containing-transferases signature.CYSE_ECOLI202-230
 
 
  3A:202-230
B:202-230
C:202-230
Biological Unit 1 (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HEXAPEP_TRANSFERASESPS00101 Hexapeptide-repeat containing-transferases signature.CYSE_ECOLI202-230
 
 
  6A:202-230
B:202-230
C:202-230

(-) Exons   (0, 0)

(no "Exon" information available for 1T3D)

(-) 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:262
 aligned with CYSE_ECOLI | P0A9D4 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:262
                                    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  
           CYSE_ECOLI     1 MSCEELEIVWNNIKAEARTLADCEPMLASFYHATLLKHENLGSALSYMLANKLSSPIMPAIAIREVVEEAYAADPEMIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGIMLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVMIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSMDMDQHFNG 262
               SCOP domains d1t3da_ A: Serine acetyltransferase                                                                                                                                                                                                                                    SCOP domains
               CATH domains --1t3dA01 A:3-142 serine acetyltransferase, domain 1                                                                                          1t3dA02 A:143-262 Hexapeptide repeat proteins                                                                            CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.ee....ee....ee......ee....ee....ee....eee...........ee....ee....eee...ee....ee....ee........eee....eeee.....hhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEXAPEP_TRANSFERASES         -------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1t3d A   1 mSCEELEIVWNNIKAEARTLADCEPmLASFYHATLLKHENLGSALSYmLANKLSSPImPAIAIREVVEEAYAADPEmIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGImLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVmIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSmDmDQHFNG 262
                            |       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  
                            |                       26-MSE                48-MSE    58-MSE             77-MSE                                                                       155-MSE                                       201-MSE                                              254-MSE    
                            1-MSE                                                                                                                                                                                                                                                        256-MSE  

Chain B from PDB  Type:PROTEIN  Length:265
 aligned with CYSE_ECOLI | P0A9D4 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:269
                                    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         
           CYSE_ECOLI     1 MSCEELEIVWNNIKAEARTLADCEPMLASFYHATLLKHENLGSALSYMLANKLSSPIMPAIAIREVVEEAYAADPEMIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGIMLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVMIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSMDMDQHFNGINHTFEY 269
               SCOP domains d1t3db_ B: Serine acetyltransferase                                                                                                                                                                                                                                           SCOP domains
               CATH domains --1t3dB01 B:3-142 serine acetyltransferase, domain 1                                                                                          1t3dB02 B:143-262 Hexapeptide repeat proteins                                                                           ------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhh.ee....ee....ee......ee....ee....ee....eee...........ee....ee....eee...ee....ee....ee........eee....eeee.................--.-.-. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEXAPEP_TRANSFERASES         --------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1t3d B   1 mSCEELEIVWNNIKAEARTLADCEPmLASFYHATLLKHENLGSALSYmLANKLSSPImPAIAIREVVEEAYAADPEmIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGImLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVmIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSmDmDQHFNG--C-C-C 701
                            |       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 |  | | |
                            1-MSE                   26-MSE                48-MSE    58-MSE             77-MSE                                                                       155-MSE                                       201-MSE                                              254-MSE 262  | | |
                                                                                                                                                                                                                                                                                         256-MSE  501 | |
                                                                                                                                                                                                                                                                                                    601 |
                                                                                                                                                                                                                                                                                                      701

Chain C from PDB  Type:PROTEIN  Length:262
 aligned with CYSE_ECOLI | P0A9D4 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:262
                                    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  
           CYSE_ECOLI     1 MSCEELEIVWNNIKAEARTLADCEPMLASFYHATLLKHENLGSALSYMLANKLSSPIMPAIAIREVVEEAYAADPEMIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGIMLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVMIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSMDMDQHFNG 262
               SCOP domains d1t3dc_ C: Serine acetyltransferase                                                                                                                                                                                                                                    SCOP domains
               CATH domains --1t3dC01 C:3-142 serine acetyltransferase, domain 1                                                                                          1t3dC02 C:143-262 Hexapeptide repeat proteins                                                                            CATH domains
           Pfam domains (1) --------SATase_N-1t3dC04 C:9-113                                                                                 -------------------------------------------------------------------------------Hexapep-1t3dC01 C:193-228           ---------------------------------- Pfam domains (1)
           Pfam domains (2) --------SATase_N-1t3dC05 C:9-113                                                                                 -------------------------------------------------------------------------------Hexapep-1t3dC02 C:193-228           ---------------------------------- Pfam domains (2)
           Pfam domains (3) --------SATase_N-1t3dC06 C:9-113                                                                                 -------------------------------------------------------------------------------Hexapep-1t3dC03 C:193-228           ---------------------------------- Pfam domains (3)
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhh.ee....ee....ee......ee....ee....ee....eee...........ee....ee....eee...ee....ee....ee........eee....eeee.....hhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEXAPEP_TRANSFERASES         -------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1t3d C   1 mSCEELEIVWNNIKAEARTLADCEPmLASFYHATLLKHENLGSALSYmLANKLSSPImPAIAIREVVEEAYAADPEmIASAACDIQAVRTRDPAVDKYSTPLLYLKGFHALQAYRIGHWLWNQGRRALAIFLQNQVSVTFQVDIHPAAKIGRGImLDHATGIVVGETAVIENDVSILQSVTLGGTGKSGGDRHPKIREGVmIGAGAKILGNIEVGRGAKIGAGSVVLQPVPPHTTAAGVPARIVGKPDSDKPSmDmDQHFNG 262
                            |       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  
                            |                       26-MSE                48-MSE    58-MSE             77-MSE                                                                       155-MSE                                       201-MSE                                              254-MSE    
                            1-MSE                                                                                                                                                                                                                                                        256-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  (1, 3)

Asymmetric Unit

(-) CATH Domains  (2, 6)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 6)

Asymmetric Unit

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C   (CYSE_ECOLI | P0A9D4)
molecular function
    GO:0009001    serine O-acetyltransferase activity    Catalysis of the reaction: L-serine + acetyl-CoA = O-acetyl-L-serine + CoA.
    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:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).
biological process
    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:0019344    cysteine biosynthetic process    The chemical reactions and pathways resulting in the formation of cysteine, 2-amino-3-mercaptopropanoic acid.
    GO:0006535    cysteine biosynthetic process from serine    The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
cellular component
    GO:0009333    cysteine synthase complex    Cysteine synthase is a multienzyme complex made up, in E. coli, of the heteromeric hexamer serine acetyltransferase and the homodimer O-acetylserine (thiol)-lyase A.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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