1T9B - JenaLib

Asym./Biol. Unit - manually (Jmol Viewer)

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF YEAST ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH A SULFONYLUREA HERBICIDE, CHLORSULFURON

Authors :   J. A. Mccourt, S. S. Pang, L. W. Guddat, R. G. Duggleby

Date :   16 May 04 (Deposition) - 21 Dec 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym./Biol. Unit : A,B

Keywords :   Acetohydroxyacid Synthase, Acetolactate Synthase, Herbicide, Sulfonylurea, Thiamin Diphosphate, Fad, Inhibitor, Chlorsulfuron, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. A. Mccourt, S. S. Pang, L. W. Guddat, R. G. Duggleby
Elucidating The Specificity Of Binding Of Sulfonylurea Herbicides To Acetohydroxyacid Synthase.
Biochemistry V. 44 2330 2005
PubMed-ID: 15709745 | Reference-DOI: 10.1021/BI047980A
(for further references see the PDB file header)

Molecule 1 - ACETOLACTATE SYNTHASE, MITOCHONDRIAL
	Chains	:	A, B
	EC Number	:	2.2.1.6
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PET30(C)
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	CATALYTIC SUBUNIT
	Gene	:	ILV2, SMR1, YMR108W, YM9718.07
	Organism Common	:	BAKER'S YEAST
	Organism Scientific	:	SACCHAROMYCES CEREVISIAE
	Organism Taxid	:	4932
	Synonym	:	ACETOHYDROXY-ACID SYNTHASE, ALS, AHAS

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (8, 12)

No.	Name	Count	Type	Full Name
1	1CS	2	Ligand/Ion	1-(2-CHLOROPHENYLSULFONYL)-3-(4-METHOXY-6-METHYL-L,3,5-TRIAZIN-2-YL)UREA
2	FAD	2	Ligand/Ion	FLAVIN-ADENINE DINUCLEOTIDE
3	K	2	Ligand/Ion	POTASSIUM ION
4	MG	2	Ligand/Ion	MAGNESIUM ION
5	NSP	1	Ligand/Ion	5-(AMINOMETHYL)-2-METHYLPYRIMIDIN-4-AMINE
6	P22	1	Ligand/Ion	ETHYL DIHYDROGEN DIPHOSPHATE
7	P25	1	Ligand/Ion	PENTYL TRIHYDROGEN DIPHOSPHATE
8	YF3	1	Ligand/Ion	2-{[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]AMINO}PROPANE-1-THIOL

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLN B:343 , ASP B:350 , GLN B:506 , TRP B:508 , HOH B:4232 , HOH B:5202	BINDING SITE FOR RESIDUE K B 696
02	AC2	SOFTWARE	ASP B:550 , ASN B:577 , GLU B:579 , P25 B:698 , HOH B:4246	BINDING SITE FOR RESIDUE MG B 699
03	AC3	SOFTWARE	GLN A:343 , ASP A:350 , GLN A:506 , TRP A:508 , HOH A:4034 , HOH A:4492	BINDING SITE FOR RESIDUE K A 1696
04	AC4	SOFTWARE	ASP A:550 , ASN A:577 , GLU A:579 , P22 A:1702 , HOH A:4051	BINDING SITE FOR RESIDUE MG A 1699
05	AC5	SOFTWARE	ASP A:379 , ARG A:380 , MET A:582 , TRP A:586 , FAD A:701 , HOH A:4808 , HOH A:5138 , GLY B:116 , VAL B:191 , ALA B:200 , PHE B:201	BINDING SITE FOR RESIDUE 1CS A 695
06	AC6	SOFTWARE	NSP A:704 , VAL B:497 , GLY B:498 , GLN B:499 , HIS B:500 , MET B:525 , GLY B:549 , ASP B:550 , ALA B:551 , SER B:552 , ASN B:577 , GLU B:579 , GLN B:580 , GLY B:581 , MET B:582 , MG B:699 , HOH B:4246	BINDING SITE FOR RESIDUE P25 B 698
07	AC7	SOFTWARE	ASP A:180 , ARG A:241 , GLY A:307 , ALA A:308 , GLY A:309 , ASN A:312 , THR A:334 , LEU A:335 , LEU A:352 , MET A:354 , HIS A:355 , GLY A:374 , ALA A:375 , ARG A:376 , ASP A:378 , ARG A:380 , VAL A:381 , GLU A:407 , VAL A:408 , SER A:409 , ASN A:412 , GLY A:425 , ASP A:426 , ALA A:427 , GLN A:501 , MET A:502 , SER A:519 , GLY A:520 , GLY A:521 , 1CS A:695 , HOH A:4014 , HOH A:4015 , HOH A:4031 , HOH A:4144 , HOH A:4325 , HOH A:4534 , PHE B:201	BINDING SITE FOR RESIDUE FAD A 701
08	AC8	SOFTWARE	GLU A:139 , PRO A:165 , ASN A:169 , GLN A:202 , GLY B:523 , MET B:525 , MET B:555 , VAL B:583 , P25 B:698 , HOH B:4820	BINDING SITE FOR RESIDUE NSP A 704
09	AC9	SOFTWARE	GLY A:116 , VAL A:191 , PRO A:192 , ALA A:200 , PHE A:201 , LYS A:251 , HOH A:4076 , MET B:354 , ASP B:379 , ARG B:380 , MET B:582 , TRP B:586 , FAD B:1701 , HOH B:4593 , HOH B:4816	BINDING SITE FOR RESIDUE 1CS B 1695
10	BC1	SOFTWARE	PHE A:201 , ASP B:180 , ARG B:241 , GLY B:307 , ALA B:308 , GLY B:309 , ASN B:312 , THR B:334 , LEU B:335 , GLN B:336 , MET B:351 , LEU B:352 , GLY B:353 , MET B:354 , HIS B:355 , GLY B:374 , ALA B:375 , ARG B:376 , ASP B:378 , ARG B:380 , VAL B:381 , PHE B:406 , GLU B:407 , VAL B:408 , ASN B:412 , GLY B:425 , ASP B:426 , ALA B:427 , GLN B:501 , MET B:502 , SER B:519 , GLY B:520 , GLY B:521 , 1CS B:1695 , HOH B:4204 , HOH B:4212 , HOH B:4229 , HOH B:4259 , HOH B:4539 , HOH B:5172	BINDING SITE FOR RESIDUE FAD B 1701
11	BC2	SOFTWARE	VAL A:497 , GLY A:498 , GLN A:499 , HIS A:500 , GLY A:549 , ASP A:550 , ALA A:551 , SER A:552 , ASN A:577 , GLU A:579 , GLN A:580 , GLY A:581 , MET A:582 , MG A:1699 , YF3 A:1705 , HOH A:4051	BINDING SITE FOR RESIDUE P22 A 1702
12	BC3	SOFTWARE	GLY A:523 , MET A:525 , MET A:555 , GLN A:580 , VAL A:583 , P22 A:1702 , TYR B:113 , PRO B:114 , GLU B:139 , PRO B:165 , ASN B:169 , GLN B:202	BINDING SITE FOR RESIDUE YF3 A 1705

(no "SS Bond" information available for 1T9B)

Asymmetric/Biological Unit

No.	Residues
1	Leu A:652	-	Pro A:653
2	Leu B:652	-	Pro B:653

(no "SAP(SNP)/Variant" information available for 1T9B)

Asymmetric/Biological Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TPP_ENZYMES	PS00187	Thiamine pyrophosphate enzymes signature.	ILVB_YEAST	533-552	2	A:533-552 B:533-552

Asymmetric/Biological Unit (1, 2)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	YMR108W	1	YMR108W.1	XIII:484083-486146	2064	ILVB_YEAST	1-687	687	2	A:85-687 (gaps) B:85-687 (gaps)	603 603

Asymmetric/Biological 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:583
 aligned with ILVB_YEAST | P07342 from UniProtKB/Swiss-Prot  Length:687

    Alignment length:603
                                    94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684   
           ILVB_YEAST    85 MDTSFVGLTGGQIFNEMMSRQNVDTVFGYPGGAILPVYDAIHNSDKFNFVLPKHEQGAGHMAEGYARASGKPGVVLVTSGPGATNVVTPMADAFADGIPMVVFTGQVPTSAIGTDAFQEADVVGISRSCTKWNVMVKSVEELPLRINEAFEIATSGRPGPVLVDLPKDVTAAILRNPIPTKTTLPSNALNQLTSRAQDEFVMQSINKAADLINLAKKPVLYVGAGILNHADGPRLLKELSDRAQIPVTTTLQGLGSFDQEDPKSLDMLGMHGCATANLAVQNADLIIAVGARFDDRVTGNISKFAPEARRAAAEGRGGIIHFEVSPKNINKVVQTQIAVEGDATTNLGKMMSKIFPVKERSEWFAQINKWKKEYPYAYMEETPGSKIKPQTVIKKLSKVANDTGRHVIVTTGVGQHQMWAAQHWTWRNPHTFITSGGLGTMGYGLPAAIGAQVAKPESLVIDIDGDASFNMTLTELSSAVQAGTPVKILILNNEEQGMVTQWQSLFYEHRYSHTHQLNPDFIKLAEAMGLKGLRVKKQEELDAKLKEFVSTKGPVLLEVEVDKKVPVLPMVAGGSGLDEFINFDPEVERQQTELRHKRTGGKH 687
               SCOP domains ----d1t9ba2 A:89-263 Acetohydroxyacid synthase catalytic subunit                                                                                                                   --------------------d1t9ba1 A:284-460 Acetohydroxyacid synthase catalytic subunit                                                                                                                    d1t9ba3 A:461-687 Acetohydroxyacid synthase catalytic subunit                                                                                                                                                                       SCOP domains
               CATH domains 1t9bA01 A:85-263  [code=3.40.50.970, no name defined]                                                                                                                              --------------------1t9bA02 A:284-459 TPP-binding domain                                                                                                                                            1t9bA03 A:460-687  [code=3.40.50.970, no name defined]                                                                                                                                                                               CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhh...eeee..hhhhhhhhhhh......eee...hhhhhhhhhhhhhhhhh..eeeee..hhhhhhhhhhhhhhhhhh..eeeeeee..............hhhhhhhhhh.eeee..hhhhhhhhhhhhhhhhhh....eeeeeeehhhhhh.......--------------------hhhhhhhhhhhhhhh...eeeee.hhhhhh.hhhhhhhhhhhhh...eee.hhhh.........eeee.....hhhhhhhhhhh.eeeee..........hhhhhhhhhhhhhhh...eeeeee.hhhhh.......eeee.hhhhhhhhhhh.......hhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhh....eeeee..hhhhhhhhhhh.......ee.........hhhhhhhhhhhhh...eeeeeeehhhhhhhh.hhhhhhhhh...eeeeee...hhhhhhhhhhhh............hhhhhhhhh..eeeee.hhhhhhhhhhhhhhh...eeeeee.......................hhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TPP_ENZYMES         --------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: A:85-687 (gaps) UniProt: 1-687 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Transcript 1
                 1t9b A  85 MDTSFVGLTGGQIFNEMMSRQNVDTVFGYPGGAILPVYDAIHNSDKFNFVLPKHEQGAGHMAEGYARASGKPGVVLVTSGPGATNVVTPMADAFADGIPMVVFTGQVPTSAIGTDAFQEADVVGISRSCTKWNVMVKSVEELPLRINEAFEIATSGRPGPVLVDLPKDVTAAILRNPIP--------------------FVMQSINKAADLINLAKKPVLYVGAGILNHADGPRLLKELSDRAQIPVTTTLQGLGSFDQEDPKSLDMLGMHGCATANLAVQNADLIIAVGARFDDRVTGNISKFAPEARRAAAEGRGGIIHFEVSPKNINKVVQTQIAVEGDATTNLGKMMSKIFPVKERSEWFAQINKWKKEYPYAYMEETPGSKIKPQTVIKKLSKVANDTGRHVIVTTGVGQHQMWAAQHWTWRNPHTFITSGGLGTMGYGLPAAIGAQVAKPESLVIDIDGDASFNMTLTELSSAVQAGTPVKILILNNEEQGMVTQWQSLFYEHRYSHTHQLNPDFIKLAEAMGLKGLRVKKQEELDAKLKEFVSTKGPVLLEVEVDKKVPVLPMVAGGSGLDEFINFDPEVERQQTELRHKRTGGKH 687
                                    94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254        |-         -       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684   
                                                                                                                                                                                                            263                  284

Chain B from PDB  Type:PROTEIN  Length:595
 aligned with ILVB_YEAST | P07342 from UniProtKB/Swiss-Prot  Length:687

    Alignment length:603
                                    94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684   
           ILVB_YEAST    85 MDTSFVGLTGGQIFNEMMSRQNVDTVFGYPGGAILPVYDAIHNSDKFNFVLPKHEQGAGHMAEGYARASGKPGVVLVTSGPGATNVVTPMADAFADGIPMVVFTGQVPTSAIGTDAFQEADVVGISRSCTKWNVMVKSVEELPLRINEAFEIATSGRPGPVLVDLPKDVTAAILRNPIPTKTTLPSNALNQLTSRAQDEFVMQSINKAADLINLAKKPVLYVGAGILNHADGPRLLKELSDRAQIPVTTTLQGLGSFDQEDPKSLDMLGMHGCATANLAVQNADLIIAVGARFDDRVTGNISKFAPEARRAAAEGRGGIIHFEVSPKNINKVVQTQIAVEGDATTNLGKMMSKIFPVKERSEWFAQINKWKKEYPYAYMEETPGSKIKPQTVIKKLSKVANDTGRHVIVTTGVGQHQMWAAQHWTWRNPHTFITSGGLGTMGYGLPAAIGAQVAKPESLVIDIDGDASFNMTLTELSSAVQAGTPVKILILNNEEQGMVTQWQSLFYEHRYSHTHQLNPDFIKLAEAMGLKGLRVKKQEELDAKLKEFVSTKGPVLLEVEVDKKVPVLPMVAGGSGLDEFINFDPEVERQQTELRHKRTGGKH 687
               SCOP domains ----d1t9bb2 B:89-263 Acetohydroxyacid synthase catalytic subunit                                                                                                                   --------------d1t9bb1 B:278-460 Acetohydroxyacid synthase catalytic subunit                                                                                                                          d1t9bb3 B:461-687 Acetohydroxyacid synthase catalytic subunit                                                                                                                                                                       SCOP domains
               CATH domains 1t9bB01 B:85-269  [code=3.40.50.970, no name defined]                                                                                                                                    --------1t9bB02 B:278-459 TPP-binding domain                                                                                                                                                  1t9bB03 B:460-687  [code=3.40.50.970, no name defined]                                                                                                                                                                               CATH domains
           Pfam domains (1) -------TPP_enzyme_N-1t9bB05 B:92-262                                                                                                                                              --------------------------TPP_enzyme_M-1t9bB01 B:289-435                                                                                                                     ------------------------------------------------------------TPP_enzyme_C-1t9bB03 B:496-643                                                                                                                      -------------------------------------------- Pfam domains (1)
           Pfam domains (2) -------TPP_enzyme_N-1t9bB06 B:92-262                                                                                                                                              --------------------------TPP_enzyme_M-1t9bB02 B:289-435                                                                                                                     ------------------------------------------------------------TPP_enzyme_C-1t9bB04 B:496-643                                                                                                                      -------------------------------------------- Pfam domains (2)
         Sec.struct. author ........hhhhhhhhhhhhh...eeee.....hhhhhhhh......eee...hhhhhhhhhhhhhhhhh..eeeee..hhhhhhhhhhhhhhhhhh..eeeeeee..............hhhhhhhhhh.eeee..hhhhhhhhhhhhhhhhhh....eeeeeeehhhhhh......hhhhhh.--------hhhhhhhhhhhhhhhhhhhhhh..eeeee.hhhhhh.hhhhhhhhhhhhhh..eee.hhhh.........eeee.....hhhhhhhhhhh.eeeee..........hhhhhhhhhhhhhhh...eeeeee.hhhhh.......eeee.hhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhh...eeeee..hhhhhhhhhhh.......ee.........hhhhhhhhhhhhh...eeeeeeehhhhhhhh.hhhhhhhhh...eeeeee...hhhhhhhhhhhh............hhhhhhhhh..eeeee.hhhhhhhhhhhhhhh...eeeeee.......................hhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TPP_ENZYMES         --------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: B:85-687 (gaps) UniProt: 1-687 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Transcript 1
                 1t9b B  85 MDTSFVGLTGGQIFNEMMSRQNVDTVFGYPGGAILPVYDAIHNSDKFNFVLPKHEQGAGHMAEGYARASGKPGVVLVTSGPGATNVVTPMADAFADGIPMVVFTGQVPTSAIGTDAFQEADVVGISRSCTKWNVMVKSVEELPLRINEAFEIATSGRPGPVLVDLPKDVTAAILRNPIPTKTTLP--------SRAQDEFVMQSINKAADLINLAKKPVLYVGAGILNHADGPRLLKELSDRAQIPVTTTLQGLGSFDQEDPKSLDMLGMHGCATANLAVQNADLIIAVGARFDDRVTGNISKFAPEARRAAAEGRGGIIHFEVSPKNINKVVQTQIAVEGDATTNLGKMMSKIFPVKERSEWFAQINKWKKEYPYAYMEETPGSKIKPQTVIKKLSKVANDTGRHVIVTTGVGQHQMWAAQHWTWRNPHTFITSGGLGTMGYGLPAAIGAQVAKPESLVIDIDGDASFNMTLTELSSAVQAGTPVKILILNNEEQGMVTQWQSLFYEHRYSHTHQLNPDFIKLAEAMGLKGLRVKKQEELDAKLKEFVSTKGPVLLEVEVDKKVPVLPMVAGGSGLDEFINFDPEVERQQTELRHKRTGGKH 687
                                    94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264    |    -   |   284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684   
                                                                                                                                                                                                                  269      278

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/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.970, no name defined] (144)

Baker's yeast (Saccharomyces cerevisiae) (17)

1a	1t9bA03	A:460-687
1b	1t9bB03	B:460-687
1c	1t9bB01	B:85-269
1d	1t9bA01	A:85-263

Homologous Superfamily: TPP-binding domain (120)

Baker's yeast (Saccharomyces cerevisiae) (20)

2a	1t9bA02	A:284-459
2b	1t9bB02	B:278-459

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (ILVB_YEAST | P07342)

molecular function
	GO:0003984	acetolactate synthase activity	Catalysis of the reaction: 2 pyruvate = 2-acetolactate + CO2.
	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:0050660	flavin adenine dinucleotide binding	Interacting selectively and non-covalently with FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0030976	thiamine pyrophosphate binding	Interacting selectively and non-covalently with thiamine pyrophosphate, the diphosphoric ester of thiamine. Acts as a coenzyme of several (de)carboxylases, transketolases, and alpha-oxoacid dehydrogenases.
	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: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:0009099	valine biosynthetic process	The chemical reactions and pathways resulting in the formation of valine, 2-amino-3-methylbutanoic acid.
cellular component
	GO:0005948	acetolactate synthase complex	A dimeric (a large and a small chain) or tetrameric (two large and two small chains) enzyme complex. Catalyzes the formation of acetolactate from pyruvate.
	GO:0005739	mitochondrion	A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
		Leu A:652 - Pro A:653	[ RasMol ]
		Leu B:652 - Pro B:653	[ RasMol ]

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Access by PDB/NDB ID
	1t9b
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	ILVB_YEAST \| P07342
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	2.2.1.6
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

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	(no 'MIM ID' available)
		Disease Information	:	OMIM

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		Age Related Information	:	GenAge

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		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	ILVB_YEAST \| P07342
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	ILVB_YEAST \| P07342	:	1jsc 1n0h 1t9a 1t9c 1t9d 5fem 5ims 5inu 5inv

1n0h	CRYSTAL STRUCTURE OF YEAST ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH A SULFONYLUREA HERBICIDE, CHLORIMURON ETHYL
1t9a	CRYSTAL STRUCTURE OF YEAST ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH A SULFONYLUREA HERBICIDE, TRIBENURON METHYL
1t9c	CRYSTAL STRUCTURE OF YEAST ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH A SULFONYLUREA HERBICIDE, SULFOMETURON METHYL
1t9d	CRYSTAL STRUCTURE OF YEAST ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH A SULFONYLUREA HERBICIDE, METSULFURON METHYL

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (8, 12)

Sites (12, 12)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 2)

Exons (1, 2)

Sequences/Alignments

Classification and Annotation

SCOP Domains (3, 6)

CATH Domains (2, 6)

Pfam Domains (3, 6)

Gene Ontology (13, 13)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File