Structure of PDB 6chi Chain A Binding Site BS02

Receptor Information
>6chi Chain A (length=466) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SLLSLPLVGSLPFLPRHGHMHNNFFKLQKKYGPIYSVRMGTKTTVIVGHH
QLAKEVLIKKGKDFSGRPQMATLDIASNNRKGIAFADSGAHWQLHRRLAM
ATFALFKDGDQKLEKIICQEISTLCDMLATHNGQSIDISFPVFVAVTNVI
SLICFNTSYKNGDPELNVIQNYNEGIIDNLSKDSLVDLVPWLKIFPNKTL
EKLKSHVKIRNDLLNKILENYKEKFRSDSITNMLDTLMQAKMNSDSELLS
DNHILTTIGDIFGAGVETTTSVVKWTLAFLLHNPQVKKKLYEEIDQNVGF
SRTPTISDRNRLLLLEATIREVLRLRPVAPMLIPHKANVDSSIGEFAVDK
GTEVIINLWALHHNEKEWHQPDQFMPERFLNPAGTQLISPSVSYLPFGAG
PRSCIGEILARQELFLIMAWLLQRFDLEVPDDGQLPSLEGIPKVVFLIDS
FKVKIKVRQAWREAQA
Ligand information
Ligand ID3NX
InChIInChI=1S/C25H32N2O2/c1-24-10-8-21-17(20(24)6-5-19(24)15-4-3-11-27-14-15)13-18(23(26)29)22-12-16(28)7-9-25(21,22)2/h3-5,11,14,16-17,20-21,28H,6-10,12-13H2,1-2H3,(H2,26,29)/t16-,17-,20-,21-,24+,25+/m0/s1
InChIKeyCPGOQTKJUPLDPD-ACAUBTHISA-N
SMILES
SoftwareSMILES
CACTVS 3.385C[C@]12CC[C@H](O)CC1=C(C[C@@H]3[C@@H]2CC[C@@]4(C)[C@H]3CC=C4c5cccnc5)C(N)=O
ACDLabs 12.01O=C(N)C4=C1CC(O)CCC1(C)C5CCC3(C(c2cccnc2)=CCC3C5C4)C
CACTVS 3.385C[C]12CC[CH](O)CC1=C(C[CH]3[CH]2CC[C]4(C)[CH]3CC=C4c5cccnc5)C(N)=O
OpenEye OEToolkits 1.7.6CC12CCC(CC1=C(CC3C2CCC4(C3CC=C4c5cccnc5)C)C(=O)N)O
OpenEye OEToolkits 1.7.6C[C@]12CC[C@@H](CC1=C(C[C@@H]3[C@@H]2CC[C@]4([C@H]3CC=C4c5cccnc5)C)C(=O)N)O
FormulaC25 H32 N2 O2
Name3-hydroxy-17-(3-pyridyl)-androst-5,16-dien-6-amide
ChEMBLCHEMBL4210141
DrugBank
ZINC
PDB chain6chi Chain A Residue 601 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB6chi Structure-Based Design of Inhibitors with Improved Selectivity for Steroidogenic Cytochrome P450 17A1 over Cytochrome P450 21A2.
Resolution2.698 Å
Binding residue
(original residue number in PDB)		A113 Y201 N202 R239 G297 D298 T306
Binding residue
(residue number reindexed from 1)		A84 Y172 N173 R210 G259 D260 T268
Annotation score1
Binding affinityBindingDB: IC50=120nM
Enzymatic activity
Catalytic site (original residue number in PDB) T306 F435 C442
Catalytic site (residue number reindexed from 1) T268 F397 C404
Enzyme Commision number 1.14.14.19: steroid 17alpha-monooxygenase.
1.14.14.32: 17alpha-hydroxyprogesterone deacetylase.
Gene Ontology
Molecular Function
GO:0004497 monooxygenase activity
GO:0004508 steroid 17-alpha-monooxygenase activity
GO:0005506 iron ion binding
GO:0008395 steroid hydroxylase activity
GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
GO:0016829 lyase activity
GO:0019825 oxygen binding
GO:0020037 heme binding
GO:0046872 metal ion binding
Biological Process
GO:0006694 steroid biosynthetic process
GO:0006702 androgen biosynthetic process
GO:0006704 glucocorticoid biosynthetic process
GO:0007548 sex differentiation
GO:0008202 steroid metabolic process
GO:0042445 hormone metabolic process
GO:0042446 hormone biosynthetic process
GO:0042448 progesterone metabolic process
Cellular Component
GO:0005783 endoplasmic reticulum
GO:0005789 endoplasmic reticulum membrane
GO:0016020 membrane
GO:0030424 axon
GO:0043025 neuronal cell body

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:6chi, PDBe:6chi, PDBj:6chi
PDBsum6chi
PubMed29792703
UniProtP05093|CP17A_HUMAN Steroid 17-alpha-hydroxylase/17,20 lyase (Gene Name=CYP17A1)

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