Structure of PDB 1n0h Chain A Binding Site BS05

Receptor Information

>1n0h Chain A (length=599) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

PDMDTSFVGLTGGQIFNEMMSRQNVDTVFGYPGGAILPVYDAIHNSDKFN
FVLPKHEQGAGHMAEGYARASGKPGVVLVTSGPGATNVVTPMADAFADGI
PMVVFTGQVPTSAIGTDAFQEADVVGISRSCTKWNVMVKSVEELPLRINE
AFEIATSGRPGPVLVDLPKDVTAAILRNPIPTKTTLPSTSRAQDEFVMQS
INKAADLINLAKKPVLYVGAGILNHADGPRLLKELSDRAQIPVTTTLQGL
GSFDQEDPKSLDMLGMHGCATANLAVQNADLIIAVGARFDDRVTGNISKF
APEARRAAAEGRGGIIHFEVSPKNINKVVQTQIAVEGDATTNLGKMMSKI
FPVKERSEWFAQINKWKKEYPYAYMEETPGSKIKPQTVIKKLSKVANDTG
RHVIVTTGVGQHQMWAAQHWTWRNPHTFITSGGLGTMGYGLPAAIGAQVA
KPESLVIDIDGDASFNMTLTELSSAVQAGTPVKILILNNEEQGMVTQWQS
LFYEHRYSHTHQLNPDFIKLAEAMGLKGLRVKKQEELDAKLKEFVSTKGP
VLLEVEVDKKVPVLPMVAGGSGLDEFINFDPEVERQQTELRHKRTGGKH

Ligand information

Ligand ID

CIE

InChI

InChI=1S/C15H15ClN4O6S/c1-3-26-13(21)9-6-4-5-7-10(9)27(23,24)20-15(22)19-14-17-11(16)8-12(18-14)25-2/h4-8H,3H2,1-2H3,(H2,17,18,19,20,22)

InChIKey

NSWAMPCUPHPTTC-UHFFFAOYSA-N

SMILES

Software	SMILES
OpenEye OEToolkits 1.5.0	CCOC(=O)c1ccccc1S(=O)(=O)NC(=O)Nc2nc(cc(n2)Cl)OC
CACTVS 3.341	CCOC(=O)c1ccccc1[S](=O)(=O)NC(=O)Nc2nc(Cl)cc(OC)n2
ACDLabs 10.04	O=C(Nc1nc(OC)cc(Cl)n1)NS(=O)(=O)c2ccccc2C(=O)OCC

Formula

C15 H15 Cl N4 O6 S

Name

2-[[[[(4-CHLORO-6-METHOXY-2-PYRIMIDINYL)AMINO]CARBONYL]AMINO]SULFONYL]BENZOIC ACID ETHYL ESTER;
CHLORIMURON ETHYL

PDB chain

1n0h Chain B Residue 1695 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]

Receptor-Ligand Complex Structure

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Structure summary

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PDB	1n0h Molecular basis of sulfonylurea herbicide inhibition of acetohydroxyacid synthase
Resolution	2.8 Å
Binding residue (original residue number in PDB)	G116 A117 V191 P192 F201 K251
Binding residue (residue number reindexed from 1)	G34 A35 V109 P110 F119 K169
Annotation score	1
Binding affinity	BindingDB: Ki=3.3nM

Enzymatic activity

Catalytic site (original residue number in PDB)	Y113 G115 G116 A117 I118 E139 T162 F201 Q202 E203 K251 R318 M354 V381 V497 L522 G523 M525 D550 N577 E579 Q580 M582 V583 W586 L608 G613 L614 K647
Catalytic site (residue number reindexed from 1)	Y31 G33 G34 A35 I36 E57 T80 F119 Q120 E121 K169 R230 M266 V293 V409 L434 G435 M437 D462 N489 E491 Q492 M494 V495 W498 L520 G525 L526 K559
Enzyme Commision number	2.2.1.6: acetolactate synthase.

Gene Ontology

	Molecular Function
GO:0000287	magnesium ion binding
GO:0003824	catalytic activity
GO:0003984	acetolactate synthase activity
GO:0016740	transferase activity
GO:0030976	thiamine pyrophosphate binding
GO:0046872	metal ion binding
GO:0050660	flavin adenine dinucleotide binding

	Biological Process
GO:0008652	amino acid biosynthetic process
GO:0009082	branched-chain amino acid biosynthetic process
GO:0009097	isoleucine biosynthetic process
GO:0009099	L-valine biosynthetic process

	Cellular Component
GO:0005739	mitochondrion
GO:0005948	acetolactate synthase complex

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Molecular Function

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Biological Process

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Cellular Component

External links

PDB	RCSB:1n0h, PDBe:1n0h, PDBj:1n0h
PDBsum	1n0h
PubMed	14557277
UniProt	P07342\|ILVB_YEAST Acetolactate synthase catalytic subunit, mitochondrial (Gene Name=ILV2)

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