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(-) Description

Title :  CRYSTAL STRUCTURE OF HOMOSERINE O-ACETYLTRANSFERASE (META) FROM BACILLUS CEREUS WITH HOMOSERINE
 
Authors :  C. Zubieta, K. A. J. Arkus, R. E. Cahoon, J. M. Jez
Date :  10 Oct 07  (Deposition) - 22 Jan 08  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Methionine Biosynthesis, Amino-Acid Biosynthesis, Homoserine Transacetylase, Homoserine Transsuccinylase, Homoserine, Transferase, Acyltransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. Zubieta, K. A. J. Arkus, R. E. Cahoon, J. M. Jez
A Single Amino Acid Change Is Responsible For Evolution Of Acyltransferase Specificity In Bacterial Methionine Biosynthesis.
J. Biol. Chem. V. 283 7561 2008
PubMed-ID: 18216013  |  Reference-DOI: 10.1074/JBC.M709283200

(-) Compounds

Molecule 1 - HOMOSERINE O-SUCCINYLTRANSFERASE
    Chains: A
    EC Number: 2.3.1.46
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Cell Line: BL-21 CODON PLUS
    Expression System Taxid: 562
    Expression System Vector: PSPEEDET
    Organism Scientific: BACILLUS CEREUS
    Organism Taxid: 1396
    Other Details: PROTEIN IS A PHYSIOLOGICAL DIMER, DIMER FORMED BY CRYSTALLOGRAPHIC TWO-FOLD
    Synonym: HOMOSERINE O-TRANSSUCCINYLASE, HTSHOMOSERINE O-ACETYLTRANSFERASE

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
1HSE1Ligand/IonL-HOMOSERINE
2SO41Ligand/IonSULFATE ION
Biological Unit 1 (2, 4)
No.NameCountTypeFull Name
1HSE2Ligand/IonL-HOMOSERINE
2SO42Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:239 , CYS A:240 , ARG A:278 , HOH A:2164BINDING SITE FOR RESIDUE SO4 A1297
2AC2SOFTWARECYS A:142 , LYS A:163 , SER A:192 , HIS A:235 , TYR A:238 , GLU A:246 , ARG A:249 , HOH A:2030 , HOH A:2165 , HOH A:2166BINDING SITE FOR RESIDUE HSE A1298

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2VDJ)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2VDJ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2VDJ)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2VDJ)

(-) Exons   (0, 0)

(no "Exon" information available for 2VDJ)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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  UniProt sequence: complete  aligned part    
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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:268
 aligned with METAA_BACC1 | Q72X44 from UniProtKB/Swiss-Prot  Length:301

    Alignment length:280
                                    26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296
          METAA_BACC1    17 EENIFVMTKERAETQDIRALKIAILNLMPTKQETEAQLLRLIGNTPLQLDVHLLHMESHLSRNVAQEHLTSFYKTFRDIENEKFDGLIITGAPVETLSFEEVDYWEELKRIMEYSKTNVTSTLHICWGAQAGLYHHYGVQKYPLKEKMFGVFEHEVREQHVKLLQGFDELFFAPHSRHTEVRESDIREVKELTLLANSEEAGVHLVIGQEGRQVFALGHSEYSCDTLKQEYERDRDKGLNIDVPKNYFKHDNPNEKPLVRWRSHGNLLFSNWLNYYVYQE 296
               SCOP domains d2vdja_ A: automated matches                                                                                                                                                                                                                                                             SCOP domains
               CATH domains -----------------2vdjA01 A:34-296  [code=3.40.50.880, no n            ame defined]                                                                                                                                                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...................eeeeee....hhhhhhhhhhhhhh.....eeeeee....------------..eehhhhhh...eeeeee........hhhhh.hhhhhhhhhhhhhhheeeeeeehhhhhhhhhhhhh...eeeeeeeeeeeeeee....hhhhh....eeeeeeeeeee.hhhhhhh...eeeeeee...eeeeeee....eeee........hhhhhhhhhhhhhh..........hhhh........hhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2vdj A  17 EENIFVMTKERAETQDIRALKIAILNLMPTKQETEAQLLRLIGNTPLQLDVHLLHMES------------SFYKTFRDIENEKFDGLIITGAPVETLSFEEVDYWEELKRIMEYSKTNVTSTLHICWGAQAGLYHHYGVQKYPLKEKMFGVFEHEVREQHVKLLQGFDELFFAVHSRHTEVRESDIREVKELTLLANSEEAGVHLVIGQEGRQVFALGHSEYSCDTLKQEYERDRDKGLNIDVPKNYFKHDNPNEKPLVRWRSHGNLLFSNWLNYYVYQE 296
                                    26        36        46        56        66       | -         -|       96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296
                                                                                    74           87
   Legend:   → Mismatch (orange background)
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2VDJ)

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A   (METAA_BACC1 | Q72X44)
molecular function
    GO:0008899    homoserine O-succinyltransferase activity    Catalysis of the reaction: L-homoserine + succinyl-CoA = O-succinyl-L-homoserine + 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:0019281    L-methionine biosynthetic process from homoserine via O-succinyl-L-homoserine and cystathionine    The chemical reactions and pathways resulting in the formation of L-methionine from other compounds, including homoserine, via the intermediates O-succinyl-L-homoserine and cystathionine.
    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:0009086    methionine biosynthetic process    The chemical reactions and pathways resulting in the formation of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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        METAA_BACC1 | Q72X44: 2ghr

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