Structure of PDB 1xkq Chain B Binding Site BS01

Receptor Information

>1xkq Chain B (length=271) Species: 6239 (Caenorhabditis elegans)

PRFSNKTVIITGSSNGIGRTTAILFAQEGANVTITGRSSERLEETRQIIL
KSGVSEKQVNSVVADVTTEDGQDQIINSTLKQFGKIDVLVNNAGAAIPDA
FGTTGTDQGIDIYHKTLKLNLQAVIEMTKKVKPHLVASKGEIVNVSSIVA
GPQAQPDFLYYAIAKAALDQYTRSTAIDLAKFGIRVNSVSPGMVETGFTN
AMGMPDQASQKFYNFMASHKECIPIGAAGKPEHIANIILFLADRNLSFYI
LGQSIVADGGTSLVMGTQAHD

Ligand information

• Ligand ID: NDP
• InChI: InChI=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
• InChIKey: ACFIXJIJDZMPPO-NNYOXOHSSA-N
• SMILES:
  OpenEye OEToolkits 1.5.0: c1nc(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 3.341: NC(=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 3.341: NC(=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 1.5.0: c1nc(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
• Formula: C21 H30 N7 O17 P3
• Name: NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
• ChEMBL: CHEMBL407009
• DrugBank: DB02338
• ZINC: ZINC000008215411
• PDB chain: 1xkq Chain B Residue 2281

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1xkq Crystal Structure of Short-Chain Dehydrogenase/Reductase of unknown Function from Caenorhabditis Elegans with Cofactor
• Resolution: 2.1 Å
• Binding residue (original residue number in PDB): G13 S15 G17 I18 R38 S39 R42 D66 V67 N93 A94 G95 L120 S148 Y162 K166 P192 G193 M194 V195 T197 G198 F199
• Binding residue (residue number reindexed from 1): G12 S14 G16 I17 R37 S38 R41 D65 V66 N92 A93 G94 L119 S147 Y161 K165 P191 G192 M193 V194 T196 G197 F198
• Annotation score: 4

Enzymatic activity

• Catalytic site (original residue number in PDB): G17 S148 F159 Y162 K166 D207
• Catalytic site (residue number reindexed from 1): G16 S147 F158 Y161 K165 D206

Gene Ontology

Molecular Function

• GO:0000166 nucleotide binding
• GO:0016491 oxidoreductase activity

External links

• PDB: RCSB:1xkq, PDBe:1xkq, PDBj:1xkq
• PDBsum: 1xkq
• UniProt: Q9N5G4