1A3G - JenaLib

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Title :   BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE FROM ESCHERICHIA COLI

Authors :   K. Okada, K. Hirotsu, M. Sato, H. Hayashi, H. Kagamiyama

Date :   21 Jan 98 (Deposition) - 27 May 98 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

Chains :   Asym. Unit : A,B,C
Biol. Unit 1: A,B,C  (2x)

Keywords :   Aminotransferase, Pyridoxal Enzyme (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. Okada, K. Hirotsu, M. Sato, H. Hayashi, H. Kagamiyama
Three-Dimensional Structure Of Escherichia Coli Branched-Chain Amino Acid Aminotransferase At 2. 5 A Resolution.
J. Biochem. (Tokyo) V. 121 637 1997
PubMed-ID: 9163511

Molecule 1 - BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE
	Chains	:	A, B, C
	EC Number	:	2.6.1.42
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562

		1	2	3
Asymmetric Unit	:	A	B	C
Biological Unit 1 (2x)	:	A	B	C

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 3)

No.	Name	Count	Type	Full Name
1	PLP	3	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Biological Unit 1 (1, 6)

No.	Name	Count	Type	Full Name
1	PLP	6	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Asymmetric Unit (3, 3)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ARG A:59 , LYS A:159 , TYR A:164 , GLU A:193 , GLY A:196 , GLU A:197 , GLY A:219 , ILE A:220 , THR A:221 , THR A:257 , HOH A:1598 , HOH A:1615	BINDING SITE FOR RESIDUE PLP A 413
2	AC2	SOFTWARE	ARG B:59 , LYS B:159 , TYR B:164 , GLU B:193 , GLY B:196 , GLU B:197 , ASN B:198 , LEU B:217 , GLY B:219 , ILE B:220 , THR B:221 , THR B:257 , HOH B:1533 , HOH B:1577	BINDING SITE FOR RESIDUE PLP B 413
3	AC3	SOFTWARE	ARG C:59 , LYS C:159 , TYR C:164 , GLU C:193 , GLY C:196 , GLU C:197 , GLY C:219 , ILE C:220 , THR C:221 , THR C:257 , HOH C:1538 , HOH C:1592	BINDING SITE FOR RESIDUE PLP C 413

(no "SS Bond" information available for 1A3G)

Asymmetric Unit

No.	Residues
1	Gly A:47	-	Pro A:48
2	Gly B:47	-	Pro B:48
3	Gly C:47	-	Pro C:48

(no "SAP(SNP)/Variant" information available for 1A3G)

Asymmetric Unit (1, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	AA_TRANSFER_CLASS_4	PS00770	Aminotransferases class-IV signature.	ILVE_ECOLI	194-223	3	A:193-222 B:193-222 C:193-222

Biological Unit 1 (1, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	AA_TRANSFER_CLASS_4	PS00770	Aminotransferases class-IV signature.	ILVE_ECOLI	194-223	6	A:193-222 B:193-222 C:193-222

(no "Exon" information available for 1A3G)

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:295
 aligned with ILVE_ECOLI | P0AB80 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:305
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304     
           ILVE_ECOLI     5 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPWGAYLGAEALEQGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 309
               SCOP domains d1a3ga_ A: Branched-chain aminoacid aminotransferase                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1a3gA01 A:4-126,A:297-308  [code=3.30.470.10, no name defined]                                                             ----------1a3gA02 A:137-296 D-amino Acid Aminotransferase, subunit A, domain 2                                                                                            1a3gA01      CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee..eee.hhh.......hhhhh..eee..eeee......eee.hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh.....eeeeeeeee..............eeeeeeeee.----------....eee.................hhhhhhhhhhhhhhhhh...eeeee.....eeee...eeeee.........hhh.....hhhhhhhhhhhh...........hhhhhh..eeeeee...eeee...............hhhhhhhhhhhhhhh.........eee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4           -------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a3g A   4 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPW----------QGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 308
                                    13        23        33        43        53        63        73        83        93       103       113       123  |      -   |   143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303     
                                                                                                                                                    126        137

Chain B from PDB  Type:PROTEIN  Length:295
 aligned with ILVE_ECOLI | P0AB80 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:305
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304     
           ILVE_ECOLI     5 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPWGAYLGAEALEQGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 309
               SCOP domains d1a3gb_ B: Branched-chain aminoacid aminotransferase                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1a3gB01 B:4-126,B:297-307  [code=3.30.470.10, no name defined]                                                             ----------1a3gB02 B:137-296 D-amino Acid Aminotransferase, subunit A, domain 2                                                                                            1a3gB01    - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee..eee.hhh.......hhhhh..eee............eee.hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhh....eeeeeeeee..............eeeeeeeee.----------....eee..................hhhhhhhhhhhhhhhh...eeeee.....eeee...eeeee.........hhh.....hhhhhhhhhhhh...........hhhhh...eeeeee...eeeee..............hhhhhhhhhhhhhhh.........eee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4           -------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a3g B   4 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPW----------QGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 308
                                    13        23        33        43        53        63        73        83        93       103       113       123  |      -   |   143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303     
                                                                                                                                                    126        137

Chain C from PDB  Type:PROTEIN  Length:295
 aligned with ILVE_ECOLI | P0AB80 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:305
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304     
           ILVE_ECOLI     5 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPWGAYLGAEALEQGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 309
               SCOP domains d1a3gc_ C: Branched-chain aminoacid aminotransferase                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1a3gC01 C:4-126,C:297-307  [code=3.30.470.10, no name defined]                                                             ----------1a3gC02 C:137-296 D-amino Acid Aminotransferase, subunit A, domain 2                                                                                            1a3gC01    - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee..eee.hhh.......hhhhh..eee..eee.......eee.hhhhhhhhhhhhhh........hhhhhhhhhhhhhhh....eeeeeeeee..............eeeeeeeee.----------....eee..................hhhhhhhhhhhhhhhh...eeeee.....eeee...eeeee.........hhh.....hhhhhhhhhhhh...........hhhhh...eeeeee...eeeee..............hhhhhhhhhhhhhhh.........eee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AA_TRANSFER_CLASS_4           -------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a3g C   4 KADYIWFNGEMVRWEDAKVHVMSHALHYGTSVFEGIRCYDSHKGPVVFRHREHMQRLHDSAKIYRFPVSQSIDELMEACRDVIRKNNLTSAYIRPLIFVGDVGMGVNPPAGYSTDVIIAAFPW----------QGIDAMVSSWNRAAPNTIPTAAKAGGNYLSSLLVGSEARRHGYQEGIALDVNGYISEGAGENLFEVKDGVLFTPPFTSSALPGITRDAIIKLAKELGIEVREQVLSRESLYLADEVFMSGTAAEITPVRSVDGIQVGEGRCGPVTKRIQQAFFGLFTGETEDKWGWLDQVNQ 308
                                    13        23        33        43        53        63        73        83        93       103       113       123  |      -   |   143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303     
                                                                                                                                                    126        137

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 '\|'

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: D-amino Acid Aminotransferase; Chain A, domain 1 (175)

Homologous Superfamily: [code=3.30.470.10, no name defined] (39)

Escherichia coli. Organism_taxid: 562 (1)

1a	1a3gB01	B:4-126,B:297-307
1b	1a3gC01	C:4-126,C:297-307
1c	1a3gA01	A:4-126,A:297-308

Architecture: Alpha-Beta Barrel (2994)

Topology: D-amino Acid Aminotransferase; Chain A, domain 2 (39)

Homologous Superfamily: D-amino Acid Aminotransferase, subunit A, domain 2 (39)

Escherichia coli. Organism_taxid: 562 (1)

2a	1a3gA02	A:137-296
2b	1a3gB02	B:137-296
2c	1a3gC02	C:137-296

(no "Pfam Domain" information available for 1A3G)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C (ILVE_ECOLI | P0AB80)

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:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	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:0006532	aspartate biosynthetic process	The chemical reactions and pathways resulting in the formation of aspartate, the anion derived from aspartic acid, 2-aminobutanedioic acid.
	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.
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.

Asymmetric Unit
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	Cis Peptide Bonds
		Gly A:47 - Pro A:48	[ RasMol ]
		Gly B:47 - Pro B:48	[ RasMol ]
		Gly C:47 - Pro C:48	[ RasMol ]

Biological Unit
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	1a3g
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	ILVE_ECOLI \| P0AB80	:	1i1k 1i1l 1i1m 1iyd 1iye

(no "Related Entries Specified in the PDB File" available for 1A3G)

Description

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