Structure of PDB 4nky Chain C Binding Site BS01

Receptor Information
>4nky Chain C (length=467) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LLSLPLVGSLPFLPRHGHMHNNFFKLQKKYGPIYSVRMGTKTTVIVGHHQ
LAKEVLIKKGKDFSGRPQMATLDILSNNRKGIAFADSGAHWQLHRRLAMA
TFALFKQKLEKIICQEISTLCDMLATHNGQSIDISFPVFVAVTNVISLIC
FNTSYKNGDPELNVIQNYNEGIIDNLSKDSLVDLVPWLKIFPNKTLEKLK
SHVKIRNDLLNKILENYKEKFRSDSITNMLDTLMQAKMNSDNGPDQDSEL
LSDNHILTTIGDIFGAGVETTTSVVKWTLAFLLHNPQVKKKLYEEIDQNV
GFSRTPTISDRNRLLLLEATIREVLRLRPVAPMLIPHKANVDSSIGEFAV
DKGTEVIINLWALHHNEKEWHQPDQFMPERFLNPAGTQLISPSVSYLPFG
AGPRSCIGEILARQELFLIMAWLLQRFDLEVPDDGQLPSLEGIPKVVFLI
DSFKVKIKVRQAWREAQ
Ligand information
Ligand IDHEM
InChIInChI=1S/C34H34N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;
InChIKeyKABFMIBPWCXCRK-RGGAHWMASA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.6Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Fe]36[N]7=C(C=C8N6C(=C5)C(=C8C)C=C)C(=C(C7=C2)C)C=C)C)CCC(=O)O
CACTVS 3.385CC1=C(CCC(O)=O)C2=Cc3n4[Fe]5|6|N2=C1C=c7n5c(=CC8=N|6C(=Cc4c(C)c3CCC(O)=O)C(=C8C=C)C)c(C)c7C=C
ACDLabs 12.01C=1c3c(c(c4C=C5C(=C(C=6C=C7C(=C(C8=CC=2C(=C(C=1N=2[Fe](n34)(N5=6)N78)CCC(=O)O)C)\C=C)C)\C=C)C)C)CCC(=O)O
FormulaC34 H32 Fe N4 O4
NamePROTOPORPHYRIN IX CONTAINING FE;
HEME
ChEMBL
DrugBankDB18267
ZINC
PDB chain4nky Chain C Residue 600 [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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PDB4nky Structures of Human Steroidogenic Cytochrome P450 17A1 with Substrates.
Resolution2.55 Å
Binding residue
(original residue number in PDB)		R96 I112 A113 R125 A302 T306 V366 L370 I371 H373 P434 F435 R440 C442 I443 G444
Binding residue
(residue number reindexed from 1)		R66 I82 A83 R95 A266 T270 V330 L334 I335 H337 P398 F399 R404 C406 I407 G408
Annotation score1
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

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Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:4nky, PDBe:4nky, PDBj:4nky
PDBsum4nky
PubMed25301938
UniProtP05093|CP17A_HUMAN Steroid 17-alpha-hydroxylase/17,20 lyase (Gene Name=CYP17A1)

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