Structure of PDB 6ciz Chain A Binding Site BS02

Receptor Information
>6ciz Chain A (length=468) 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
EKLKSHVKIRNDLLNKILENYKEKFRSDSITNMLDTLMQAKMNSDQDSEL
LSDNHILTTIGDIFGAGVETTTSVVKWTLAFLLHNPQVKKKLYEEIDQNV
GFSRTPTISDRNRLLLLEATIREVLRLRPVAPMLIPHKANVDSSIGEFAV
DKGTEVIINLWALHHNEKEWHQPDQFMPERFLNPAGTQLISPSVSYLPFG
AGPRSCIGEILARQELFLIMAWLLQRFDLEVPDDGQLPSLEGIPKVVFLI
DSFKVKIKVRQAWREAQA
Ligand information
Ligand ID3NR
InChIInChI=1S/C25H30N2O/c1-24-10-8-22-19(21(24)6-5-20(24)16-4-3-11-27-15-16)12-17(14-26)23-13-18(28)7-9-25(22,23)2/h3-5,11,15,18-19,21-22,28H,6-10,12-13H2,1-2H3/t18-,19-,21-,22-,24+,25+/m0/s1
InChIKeyXMYHDPOWFDNIDA-SQRYLOHGSA-N
SMILES
SoftwareSMILES
CACTVS 3.385C[C]12CC[CH](O)CC1=C(C[CH]3[CH]2CC[C]4(C)[CH]3CC=C4c5cccnc5)C#N
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
OpenEye OEToolkits 1.7.6CC12CCC(CC1=C(CC3C2CCC4(C3CC=C4c5cccnc5)C)C#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#N)O
ACDLabs 12.01N#CC4=C1CC(O)CCC1(C)C5CCC3(C(c2cccnc2)=CCC3C5C4)C
FormulaC25 H30 N2 O
Name6-cyano-17-(3-pyridyl)-androst-5,16-dien-3-ol
ChEMBLCHEMBL4209941
DrugBank
ZINC
PDB chain6ciz Chain A Residue 601 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
PDB6ciz Structure-Based Design of Inhibitors with Improved Selectivity for Steroidogenic Cytochrome P450 17A1 over Cytochrome P450 21A2.
Resolution2.601 Å
Binding residue
(original residue number in PDB)		A113 N202 I206 R239 G297 T306
Binding residue
(residue number reindexed from 1)		A84 N173 I177 R210 G261 T270
Annotation score1
Binding affinityBindingDB: IC50=16nM
Enzymatic activity
Catalytic site (original residue number in PDB) T306 F435 C442
Catalytic site (residue number reindexed from 1) T270 F399 C406
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:6ciz, PDBe:6ciz, PDBj:6ciz
PDBsum6ciz
PubMed29792703
UniProtP05093|CP17A_HUMAN Steroid 17-alpha-hydroxylase/17,20 lyase (Gene Name=CYP17A1)

[Back to BioLiP]