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(-) Description

Title :  METHIONINE GAMMA-LYASE (MGL) FROM TRICHOMONAS VAGINALIS IN COMPLEX WITH PROPARGYLGLYCINE
 
Authors :  G. Goodall, J. C. Mottram, G. H. Coombs, A. J. Lapthorn
Date :  25 Jul 00  (Deposition) - 19 Jul 01  (Release) - 05 Feb 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.18
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Methionine Biosynthesis, Plp-Dependent Enzymes, C-S Gamma Lyase, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Goodall, J. C. Mottram, G. H. Coombs, A. J. Lapthorn
The Structure And Proposed Catalytic Mechanism Of Methionine Gamma-Lyase
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - METHIONINE GAMMA-LYASE
    Cellular Location: CYTOPLASM
    Chains: A, B
    EC Number: 4.4.1.11
    Engineered: YES
    Expression System: ESCHERICHIA COLI M15
    Expression System Plasmid: PQE60
    Expression System Taxid: 1007065
    Expression System Vector Type: PLASMID
    Gene: MGL1
    Organism Scientific: TRICHOMONAS VAGINALIS
    Organism Taxid: 412133
    Other Details: COVALENT LINK BETWEEN PROPARGYLGLYCINE AND TYR 111
    Strain: G3
    Synonym: MGL

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 9)

Asymmetric Unit (3, 9)
No.NameCountTypeFull Name
1GOL2Ligand/IonGLYCEROL
2PPJ2Ligand/IonN-(HYDROXY{3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYL)NORVALINE
3SO45Ligand/IonSULFATE ION
Biological Unit 1 (3, 18)
No.NameCountTypeFull Name
1GOL4Ligand/IonGLYCEROL
2PPJ4Ligand/IonN-(HYDROXY{3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYL)NORVALINE
3SO410Ligand/IonSULFATE ION

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:298 , LYS A:302 , TYR A:308BINDING SITE FOR RESIDUE SO4 A 408
2AC2SOFTWARELYS A:286 , ASP A:294 , HOH A:2426 , HOH A:2427BINDING SITE FOR RESIDUE SO4 A 409
3AC3SOFTWAREGLN A:128 , LYS A:145 , PRO B:358 , LYS B:359 , ARG B:362 , HOH B:2416 , HOH B:2417BINDING SITE FOR RESIDUE SO4 B 406
4AC4SOFTWAREGLU B:276 , LYS B:279 , PHE B:292 , GLU B:293 , ASP B:294BINDING SITE FOR RESIDUE SO4 B 407
5AC5SOFTWAREVAL B:284 , LYS B:317BINDING SITE FOR RESIDUE SO4 B 410
6AC6SOFTWARESER A:85 , GLY A:86 , MET A:87 , TYR A:111 , ASN A:158 , ASP A:184 , SER A:206 , THR A:208 , LYS A:209 , ALA A:219 , SER A:338 , THR A:353 , ARG A:373 , TYR B:56 , ARG B:58BINDING SITE FOR RESIDUE PPJ A 405
7AC7SOFTWARETYR A:56 , ARG A:58 , SER B:85 , GLY B:86 , MET B:87 , TYR B:111 , ASN B:158 , ASP B:184 , SER B:206 , THR B:208 , LYS B:209 , SER B:338 , THR B:353 , ARG B:373BINDING SITE FOR RESIDUE PPJ B 405
8AC8SOFTWARETHR A:57 , ARG A:58 , LEU A:59 , ALA A:82 , ARG A:233 , SER A:243 , VAL A:244 , ILE A:245 , HOH A:2132 , HOH A:2428BINDING SITE FOR RESIDUE GOL A 411
9AC9SOFTWAREGLY B:291 , GLU B:293 , HIS B:298 , LYS B:302 , TYR B:308 , HOH B:2418 , HOH B:2419BINDING SITE FOR RESIDUE GOL B 412

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1E5E)

(-) Cis Peptide Bonds  (4, 4)

Asymmetric Unit
No.Residues
1Thr A:155 -Pro A:156
2Asn A:158 -Pro A:159
3Thr B:155 -Pro B:156
4Asn B:158 -Pro B:159

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1E5E)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1E5E)

(-) Exons   (0, 0)

(no "Exon" information available for 1E5E)

(-) 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:394
 aligned with A2FEV4_TRIVA | A2FEV4 from UniProtKB/TrEMBL  Length:396

    Alignment length:394
                                                                                                                                                                                                                                                                                                                                                                                                                                  396 
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393  | 
         A2FEV4_TRIVA     4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL-   -
               SCOP domains d1e5ea_ A: Methionine gamma-lyase, MGL                                                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains --1e5eA01 A:6-260 Type I PLP-dependent aspartate aminotransferase-like (Major domain)                                                                                                                                                                            1e5eA02 A:261-397 Aspartate Aminotransferase, domain 1                                                                                    CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhh.......................hhhhhhhhhh............hhhhhhhhhhhhhhhh..eeeee.hhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhhhh..eeeee.....hhhhhhh...eeeeeee..........hhhhhhhhhhh....eeeee.........hhhhhh..eeeee.............eeeeehhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeee........hhhhhhhhh.....eeeeee.hhhhhhhhhhhh...............eeehhhhh.....hhhhhhhh.....eeeee....hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e5e A   4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALLR 397
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393    


Chain A from PDB  Type:PROTEIN  Length:394
 aligned with O15564_TRIVA | O15564 from UniProtKB/TrEMBL  Length:396

    Alignment length:394
                                                                                                                                                                                                                                                                                                                                                                                                                                  396 
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393  | 
         O15564_TRIVA     4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMSGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL-   -
               SCOP domains d1e5ea_ A: Methionine gamma-lyase, MGL                                                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains --1e5eA01 A:6-260 Type I PLP-dependent aspartate aminotransferase-like (Major domain)                                                                                                                                                                            1e5eA02 A:261-397 Aspartate Aminotransferase, domain 1                                                                                    CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhh.......................hhhhhhhhhh............hhhhhhhhhhhhhhhh..eeeee.hhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhhhh..eeeee.....hhhhhhh...eeeeeee..........hhhhhhhhhhh....eeeee.........hhhhhh..eeeee.............eeeeehhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeee........hhhhhhhhh.....eeeeee.hhhhhhhhhhhh...............eeehhhhh.....hhhhhhhh.....eeeee....hhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e5e A   4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALLR 397
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393    


Chain B from PDB  Type:PROTEIN  Length:393
 aligned with A2FEV4_TRIVA | A2FEV4 from UniProtKB/TrEMBL  Length:396

    Alignment length:393
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393   
         A2FEV4_TRIVA     4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL 396
               SCOP domains d1e5eb_ B: Methionine gamma-lyase, MGL                                                                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains --1e5eB01 B:6-260 Type I PLP-dependent aspartate aminotransferase-like (Major domain)                                                                                                                                                                            1e5eB02 B:261-396 Aspartate Aminotransferase, domain 1                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhh.......................hhhhhhhhhh............hhhhhhhhhhhhhhhh..eeeee.hhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhhhh..eeeee.....hhhhhhh...eeeeeee..........hhhhhhhhhh.....eeeee.........hhhhhh..eeeee.............eeeeehhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeee........hhhhhhhhh.....eeeeee.hhhhhhhhhhhhh..............eee..........hhhhhhhh.....eeeee....hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e5e B   4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL 396
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393   


Chain B from PDB  Type:PROTEIN  Length:393
 aligned with O15564_TRIVA | O15564 from UniProtKB/TrEMBL  Length:396

    Alignment length:393
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393   
         O15564_TRIVA     4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMSGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL 396
               SCOP domains d1e5eb_ B: Methionine gamma-lyase, MGL                                                                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains --1e5eB01 B:6-260 Type I PLP-dependent aspartate aminotransferase-like (Major domain)                                                                                                                                                                            1e5eB02 B:261-396 Aspartate Aminotransferase, domain 1                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhh.......................hhhhhhhhhh............hhhhhhhhhhhhhhhh..eeeee.hhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhhhh..eeeee.....hhhhhhh...eeeeeee..........hhhhhhhhhh.....eeeee.........hhhhhh..eeeee.............eeeeehhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeee........hhhhhhhhh.....eeeeee.hhhhhhhhhhhhh..............eee..........hhhhhhhh.....eeeee....hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e5e B   4 ERMTPATACIHANPQKDQFGAAIPPIYQTSTFVFDNCQQGGNRFAGQESGYIYTRLGNPTVSNLEGKIAFLEKTEACVATSSGMGAIAATVLTILKAGDHLISDECLYGCTHALFEHALTKFGIQVDFINTAIPGEVKKHMKPNTKIVYFETPANPTLKIIDMERVCKDAHSQEGVLVIADNTFCSPMITNPVDFGVDVVVHSATKYINGHTDVVAGLICGKADLLQQIRMVGIKDITGSVISPHDAWLITRGLSTLNIRMKAESENAMKVAEYLKSHPAVEKVYYPGFEDHEGHDIAKKQMRMYGSMITFILKSGFEGAKKLLDNLKLITLAVSLGGCESLIQHPASMTHAVVPKEEREAAGITDGMIRLSVGIEDADELIADFKQGLDALL 396
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393
   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
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 4)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1E5E)

(-) Gene Ontology  (4, 8)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (A2FEV4_TRIVA | A2FEV4)
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: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:0018826    methionine gamma-lyase activity    Catalysis of the reaction: L-methionine = methanethiol + NH3 + 2-oxobutanoate.
    GO:0030170    pyridoxal phosphate binding    Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.

Chain A,B   (O15564_TRIVA | O15564)
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: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:0018826    methionine gamma-lyase activity    Catalysis of the reaction: L-methionine = methanethiol + NH3 + 2-oxobutanoate.
    GO:0030170    pyridoxal phosphate binding    Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.

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  1e5e
    Family and Domain Information: ProDom | SYSTERS
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  A2FEV4_TRIVA | A2FEV4
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  O15564_TRIVA | O15564
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        O15564_TRIVA | O15564: 1e5f

(-) Related Entries Specified in the PDB File

1e5f METHIONINE GAMMA-LYASE (MGL) FROM TRICHOMONAS VAGINALIS