Structure of PDB 4a65 Chain B Binding Site BS01

Receptor Information
>4a65 Chain B (length=313) Species: 5759 (Entamoeba histolytica) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SNIHDVVIIGSGPAAHTAAIYLGRSSLKPVMYEGFMAGGVAAGGQLTTTT
IIENFPGFPNGIDGNELMMNMRTQSEKYGTTIITETIDHVDFSTQPFKLF
TEEGKEVLTKSVIIATGATAKRMHVPGEDKYWQNGVSACAICDGAVPIFR
NKVLMVVGGGDAAMEEALHLTKYGSKVIILHRRDAFRASKTMQERVLNHP
KIEVIWNSELVELEGDGDLLNGAKIHNLVSGEYKVVPVAGLFYAIGHSPN
SKFLGGQVKTADDGYILTEGPKTSVDGVFACGDVCDRVYRQAIVAAGSGC
MAALSCEKWLQTH
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 chain4a65 Chain B Residue 1315 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4a65 X-Ray Structures of Thioredoxin and Thioredoxin Reductase from Entamoeba Histolytica and Prevailing Hypothesis of the Mechanism of Auranofin Action.
Resolution1.7 Å
Binding residue
(original residue number in PDB)		M124 G160 A163 H182 R183 R184 R188 A245 I246 R291
Binding residue
(residue number reindexed from 1)		M123 G159 A162 H181 R182 R183 R187 A244 I245 R290
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) C140 C143 D144 D162 E166
Catalytic site (residue number reindexed from 1) C139 C142 D143 D161 E165
Enzyme Commision number 1.8.1.9: thioredoxin-disulfide reductase.
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0004791 thioredoxin-disulfide reductase (NADPH) activity
GO:0016491 oxidoreductase activity
Biological Process
GO:0019430 removal of superoxide radicals
GO:0045454 cell redox homeostasis
Cellular Component
GO:0005737 cytoplasm
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:4a65, PDBe:4a65, PDBj:4a65
PDBsum4a65
PubMed26876147
UniProtC4LW95

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