Structure of PDB 2a87 Chain B Binding Site BS02

Receptor Information
>2a87 Chain B (length=304) Species: 1773 (Mycobacterium tuberculosis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RDVIVIGSGPAGYTAALYAARAQLAPLVFEGTSFGGALMTTTDVENYPGF
RNGITGPELMDEMREQALRFGADLRMEDVESVSLHGPLKSVVTADGQTHR
ARAVILAMGAAARYLQVPGEQELLGRGVSSCATCDGFFFRDQDIAVIGGG
DSAMEEATFLTRFARSVTLVHRRDEFRASKIMLDRARNNDKIRFLTNHTV
VAVDGDTTVTGLRVRDTNTGAETTLPVTGVFVAIGHEPRSGLVREAIDVD
PDGYVLVQGRTTSTSLPGVFAAGDLVDRTYRQAVTAAGSGCAAAIDAERW
LAEH
Ligand information
Ligand IDNAP
InChIInChI=1S/C21H28N7O17P3/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/h1-4,7-8,10-11,13-16,20-21,29-31H,5-6H2,(H7-,22,23,24,25,32,33,34,35,36,37,38,39)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyXJLXINKUBYWONI-NNYOXOHSSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0c1cc(c[n+](c1)C2C(C(C(O2)COP(=O)([O-])OP(=O)(O)OCC3C(C(C(O3)n4cnc5c4ncnc5N)OP(=O)(O)O)O)O)O)C(=O)N
CACTVS 3.341NC(=O)c1ccc[n+](c1)[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)c1ccc[n+](c1)[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 1.5.0c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)CO[P@@](=O)([O-])O[P@](=O)(O)OC[C@@H]3[C@H]([C@H]([C@@H](O3)n4cnc5c4ncnc5N)OP(=O)(O)O)O)O)O)C(=O)N
FormulaC21 H28 N7 O17 P3
NameNADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE;
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
ChEMBLCHEMBL295069
DrugBankDB03461
ZINC
PDB chain2a87 Chain B Residue 481 [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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PDB2a87 Conformational flexibility of Mycobacterium tuberculosis thioredoxin reductase: crystal structure and normal-mode analysis.
Resolution3.0 Å
Binding residue
(original residue number in PDB)		G162 G164 D165 S166 H185 R186 R191 I248 G249 Y268 R292 R295
Binding residue
(residue number reindexed from 1)		G148 G150 D151 S152 H171 R172 R177 I234 G235 Y254 R278 R281
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) F48 L52 D57 C145 C148 D149
Catalytic site (residue number reindexed from 1) F34 L38 D43 C131 C134 D135
Enzyme Commision number 1.8.1.9: thioredoxin-disulfide reductase.
Gene Ontology
Molecular Function
GO:0004791 thioredoxin-disulfide reductase (NADPH) activity
GO:0005515 protein binding
GO:0015035 protein-disulfide reductase activity
GO:0016491 oxidoreductase activity
GO:0050660 flavin adenine dinucleotide binding
GO:0070402 NADPH binding
Biological Process
GO:0001666 response to hypoxia
GO:0019430 removal of superoxide radicals
GO:0045454 cell redox homeostasis
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

View graph for
Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:2a87, PDBe:2a87, PDBj:2a87
PDBsum2a87
PubMed16301794
UniProtP9WHH1|TRXB_MYCTU Thioredoxin reductase (Gene Name=trxB)

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