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(-) Description

Title :  CRYSTAL STRUCTURE OF ILVE A BRANCHED CHAIN AMINO ACID TRANSAMINASE FROM MYCOBACTERIUM TUBERCULOSIS
 
Authors :  L. W. Tremblay, J. S. Blanchard
Date :  11 Jun 09  (Deposition) - 01 Dec 09  (Release) - 01 Dec 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Tb, Transaminase, Branched-Chain-Amino-Acids, Plp Binding Type Iv Fold, Amino-Acid Biosynthesis, Aminotransferase, Branched-Chain Amino Acid Biosynthesis, Pyridoxal Phosphate, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  L. W. Tremblay, J. S. Blanchard
The 1. 9 A Structure Of The Branched-Chain Amino-Acid Transaminase (Ilve) From Mycobacterium Tuberculosis.
Acta Crystallogr. , Sect. F V. 65 1071 2009
PubMed-ID: 19923721  |  Reference-DOI: 10.1107/S1744309109036690
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - BRANCHED-CHAIN-AMINO-ACID AMINOTRANSFERASE
    ChainsA
    EC Number2.6.1.42
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET28A
    Expression System StrainROSETTA2
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentPLP DEPENDENT TRANSAMINASE TYPE IV FOLD
    GeneILVE, MT2266, MTCY190.21C, RV2210C
    MutationYES
    Organism ScientificMYCOBACTERIUM TUBERCULOSIS
    Organism Taxid1773
    SynonymBCAT

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1PMP1Ligand/Ion4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1PMP2Ligand/Ion4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:101 , ARG A:194 , LYS A:204 , TYR A:209 , GLU A:240 , GLY A:242 , GLY A:243 , MET A:244 , ASN A:245 , LEU A:268 , GLY A:270 , ILE A:271 , THR A:272 , GLY A:313 , THR A:314 , HOH A:388 , HOH A:423 , HOH A:448 , HOH A:507BINDING SITE FOR RESIDUE PMP A 6236

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3HT5)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Ala A:137 -Gly A:138

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3HT5)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1AA_TRANSFER_CLASS_4PS00770 Aminotransferases class-IV signature.ILVE_MYCTO240-273  1A:240-273
ILVE_MYCTU240-273  1A:240-273
Biological Unit 1 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1AA_TRANSFER_CLASS_4PS00770 Aminotransferases class-IV signature.ILVE_MYCTO240-273  2A:240-273
ILVE_MYCTU240-273  2A:240-273

(-) Exons   (0, 0)

(no "Exon" information available for 3HT5)

(-) 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:335
 aligned with ILVE_MYCTO | P9WQ74 from UniProtKB/Swiss-Prot  Length:368

    Alignment length:335
                                    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     
           ILVE_MYCTO    34 YHTDHMVSIDYAEGRGWHNARVIPYGPIELDPSAIVLHYAQEVFEGLKAYRWADGSIVSFRADANAARLRSSARRLAIPELPDAVFIESLRQLIAVDKAWVPGAGGEEALYLRPFIFATEPGLGVRPATQYRYLLIASPAGAYFKGGIAPVSVWVSTEYVRACPGGTGAAKFGGNYAASLLAQAEAAENGCDQVVWLDAVERRYIEEMGGMNIFFVLGSGGSARLVTPELSGSLLPGITRDSLLQLAIDAGFAVEERRIDIDEWQKKAAAGEITEVFACGTAAVITPVARVRHGASEFRIADGQPGEVTMALRDTLTGIQRGTFADTHGWMARLG 368
               SCOP domains d3ht5a_ A: automated matches                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeeee...eeeeeeeee..........hhhhhh.eee..eeeee.....eeeehhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhh.......eeeeeeeeee...........eeeeeeeeeee...hhhhh..eeeee................hhhhhhhhhhhhhhhhhh...eeeee.......eeee...eeeeee.hhhh.eeeee........hhhhhhhhhhhhhhh.eeeee..hhhhhhhhhhh..eeeeeeee...eeeeeeeeee..eeee......hhhhhhhhhhhhhhhh.........eeeee Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4  PDB: A:240-27----------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3ht5 A  34 YHTDHMVSIDYAEGRGWHNARVIPYGPIELDPSAIVLHYAQEVFEGLKAYRWADGSIVSFRADANAARLRSSARRLAIPELPDAVFIESLRQLIAVDKAWVPGAGGEEALYLRPFIFATEPGLGVRPATQYRYLLIASPAGAYFKGGIAPVSVWVSTEYVRACPGGTGAAKFGGNYAASLLAQAEAAENGCDQVVWLDAVERRYIEEMGGMNIFFVLGSGGSARLVTPELSGSLLPGITRDSLLQLAIDAGFAVEERRIDIDEWQKKAAAGEITEVFACGTAAVITPVARVRHGASEFRIADGQPGEVTMALRDTLTGIQRGTFADTHGWMARLG 368
                                    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     

Chain A from PDB  Type:PROTEIN  Length:335
 aligned with ILVE_MYCTU | P9WQ75 from UniProtKB/Swiss-Prot  Length:368

    Alignment length:335
                                    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     
           ILVE_MYCTU    34 YHTDHMVSIDYAEGRGWHNARVIPYGPIELDPSAIVLHYAQEVFEGLKAYRWADGSIVSFRADANAARLRSSARRLAIPELPDAVFIESLRQLIAVDKAWVPGAGGEEALYLRPFIFATEPGLGVRPATQYRYLLIASPAGAYFKGGIAPVSVWVSTEYVRACPGGTGAAKFGGNYAASLLAQAEAAENGCDQVVWLDAVERRYIEEMGGMNIFFVLGSGGSARLVTPELSGSLLPGITRDSLLQLAIDAGFAVEERRIDIDEWQKKAAAGEITEVFACGTAAVITPVARVRHGASEFRIADGQPGEVTMALRDTLTGIQRGTFADTHGWMARLG 368
               SCOP domains d3ht5a_ A: automated matches                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeeee...eeeeeeeee..........hhhhhh.eee..eeeee.....eeeehhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhh.......eeeeeeeeee...........eeeeeeeeeee...hhhhh..eeeee................hhhhhhhhhhhhhhhhhh...eeeee.......eeee...eeeeee.hhhh.eeeee........hhhhhhhhhhhhhhh.eeeee..hhhhhhhhhhh..eeeeeeee...eeeeeeeeee..eeee......hhhhhhhhhhhhhhhh.........eeeee Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4  PDB: A:240-27----------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3ht5 A  34 YHTDHMVSIDYAEGRGWHNARVIPYGPIELDPSAIVLHYAQEVFEGLKAYRWADGSIVSFRADANAARLRSSARRLAIPELPDAVFIESLRQLIAVDKAWVPGAGGEEALYLRPFIFATEPGLGVRPATQYRYLLIASPAGAYFKGGIAPVSVWVSTEYVRACPGGTGAAKFGGNYAASLLAQAEAAENGCDQVVWLDAVERRYIEEMGGMNIFFVLGSGGSARLVTPELSGSLLPGITRDSLLQLAIDAGFAVEERRIDIDEWQKKAAAGEITEVFACGTAAVITPVARVRHGASEFRIADGQPGEVTMALRDTLTGIQRGTFADTHGWMARLG 368
                                    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     

   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, 1)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3HT5)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3HT5)

(-) Gene Ontology  (18, 32)

Asymmetric Unit(hide GO term definitions)
Chain A   (ILVE_MYCTO | P9WQ74)
molecular function
    GO:0052656    L-isoleucine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-isoleucine = (S)-3-methyl-2-oxopentanoic acid + L-glutamic acid.
    GO:0052654    L-leucine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-leucine = 4-methyl-2-oxopentanoate + L-glutamatic acid.
    GO:0052655    L-valine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-valine = 3-methyl-2-oxobutanoic acid + L-glutamatic acid.
    GO:0004084    branched-chain-amino-acid transaminase activity    Catalysis of the reaction: a branched-chain amino acid + 2-oxoglutarate = L-glutamate + a 2-oxocarboxylate derived from the branched-chain amino acid.
    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:0008483    transaminase activity    Catalysis of the transfer of an amino group to an acceptor, usually a 2-oxo acid.
    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.
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:0009081    branched-chain amino acid metabolic process    The chemical reactions and pathways involving amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    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:0009097    isoleucine biosynthetic process    The chemical reactions and pathways resulting in the formation of isoleucine, (2R*,3R*)-2-amino-3-methylpentanoic acid.
    GO:0009098    leucine biosynthetic process    The chemical reactions and pathways resulting in the formation of leucine, 2-amino-4-methylpentanoic acid.
    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:0009099    valine biosynthetic process    The chemical reactions and pathways resulting in the formation of valine, 2-amino-3-methylbutanoic acid.

Chain A   (ILVE_MYCTU | P9WQ75)
molecular function
    GO:0052656    L-isoleucine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-isoleucine = (S)-3-methyl-2-oxopentanoic acid + L-glutamic acid.
    GO:0052654    L-leucine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-leucine = 4-methyl-2-oxopentanoate + L-glutamatic acid.
    GO:0052655    L-valine transaminase activity    Catalysis of the reaction: 2-oxoglutarate + L-valine = 3-methyl-2-oxobutanoic acid + L-glutamatic acid.
    GO:0004084    branched-chain-amino-acid transaminase activity    Catalysis of the reaction: a branched-chain amino acid + 2-oxoglutarate = L-glutamate + a 2-oxocarboxylate derived from the branched-chain amino acid.
    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: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: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.
    GO:0008483    transaminase activity    Catalysis of the transfer of an amino group to an acceptor, usually a 2-oxo acid.
    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.
biological process
    GO:0071267    L-methionine salvage    Any process that generates L-methionine from derivatives of it, without de novo synthesis.
    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:0009081    branched-chain amino acid metabolic process    The chemical reactions and pathways involving amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine.
    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:0009097    isoleucine biosynthetic process    The chemical reactions and pathways resulting in the formation of isoleucine, (2R*,3R*)-2-amino-3-methylpentanoic acid.
    GO:0009098    leucine biosynthetic process    The chemical reactions and pathways resulting in the formation of leucine, 2-amino-4-methylpentanoic acid.
    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:0009099    valine biosynthetic process    The chemical reactions and pathways resulting in the formation of valine, 2-amino-3-methylbutanoic acid.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ILVE_MYCTU | P9WQ755u3f

(-) Related Entries Specified in the PDB File

1iyd 1kt8 2hhf