Structure of PDB 4tsk Chain A Binding Site BS04

Receptor Information
>4tsk Chain A (length=333) Species: 521098 (Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
EKIYYDADISIQPLADKRIAVIGYGSQGHAHAQNLRDSGFDVVIGLRPGS
SWAKAEADGFRVMAVGEAVEESDVIMILLPDERQPAVYEREIRPYLTAGK
ALAFAHGFNIHFSQIQPPKDVDVFMVAPKGPGHLVRRVYEAGGGVPALIA
VHQDASGQAKDLALAYARGIGAGRAGILTTTFREETETDLFGEQAVLCGG
LSALIKAGFETLVEAGYQPEIAYFECLHEMKLIVDLIYEGGLEYMRYSIS
DTAQWGDFTSGPRIINEETKKEMRRILADIQSGAFAKSWILENQANRPMF
NAINRRELEHPIEVVGRKLRSMMPFIKAKRPGD
Ligand information
Ligand IDNDP
InChIInChI=1S/C21H30N7O17P3/c22-17-12-19(25-7-24-17)28(8-26-12)21-16(44-46(33,34)35)14(30)11(43-21)6-41-48(38,39)45-47(36,37)40-5-10-13(29)15(31)20(42-10)27-3-1-2-9(4-27)18(23)32/h1,3-4,7-8,10-11,13-16,20-21,29-31H,2,5-6H2,(H2,23,32)(H,36,37)(H,38,39)(H2,22,24,25)(H2,33,34,35)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyACFIXJIJDZMPPO-NNYOXOHSSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)O[P@@](=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)N5C=CCC(=C5)C(=O)N)O)O)O)OP(=O)(O)O)N
CACTVS 3.341NC(=O)C1=CN(C=CC1)[CH]2O[CH](CO[P](O)(=O)O[P](O)(=O)OC[CH]3O[CH]([CH](O[P](O)(O)=O)[CH]3O)n4cnc5c(N)ncnc45)[CH](O)[CH]2O
CACTVS 3.341NC(=O)C1=CN(C=CC1)[C@@H]2O[C@H](CO[P@@](O)(=O)O[P@](O)(=O)OC[C@H]3O[C@H]([C@H](O[P](O)(O)=O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OCC4C(C(C(O4)N5C=CCC(=C5)C(=O)N)O)O)O)OP(=O)(O)O)N
FormulaC21 H30 N7 O17 P3
NameNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
ChEMBLCHEMBL407009
DrugBankDB02338
ZINCZINC000008215411
PDB chain4tsk Chain A Residue 405 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB4tsk Uncovering rare NADH-preferring ketol-acid reductoisomerases.
Resolution2.5 Å
Binding residue
(original residue number in PDB)		Y25 G26 S27 Q28 L47 R48 S52 L79 L80 P81 D82 H107 P132
Binding residue
(residue number reindexed from 1)		Y24 G25 S26 Q27 L46 R47 S51 L78 L79 P80 D81 H106 P131
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) K130 D190 E194
Catalytic site (residue number reindexed from 1) K129 D189 E193
Enzyme Commision number 1.1.1.86: ketol-acid reductoisomerase (NADP(+)).
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0004455 ketol-acid reductoisomerase activity
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0050661 NADP 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:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4tsk, PDBe:4tsk, PDBj:4tsk
PDBsum4tsk
PubMed25172159
UniProtC8WR67|ILVC_ALIAD Ketol-acid reductoisomerase (NADP(+)) (Gene Name=ilvC)

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