Structure of PDB 6j7a Chain A Binding Site BS01

Receptor Information
>6j7a Chain A (length=814) Species: 10116 (Rattus norvegicus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SQDLSEALKEATKEVHIRAENSEFMRNFQKGQVSREGFKLVMASLYHIYT
ALEEEIERNKQNPVYAPLYFPEELHRRAALEQDMAFWYGPHWQEAIPYTP
ATQHYVKRLHEVGGTHPELLVAHAYTRYLGDLSGGQVLKKIAQKAMALPS
SGEGLAFFTFPSIDNPTKFKQLYRARMNTLEMTPEVKHRVTEEAKTAFLL
NIELFEELQALLPSSFVEKMKKTGRNIIVFYGSQTGTAEEFANRLSKDAH
RYGMRGMSADPEEYDLADLSSLPEIDKSLVVFCMATYGEGDPTDNAQDFY
DWLQETDVDLTGVKFAVFGLGNKTYEHFNAMGKYVDQRLEQLGAQRIFEL
GLGDDDGNLEEDFITWREQFWPAVCEFFGVEASSIRQYELVVHEDMDVAK
VYTGEMGRLKSYENQKPPFDAKNPFLAAVTANRKLNQGTERHLMHLELDI
SDSKIRYESGDHVAVYPANDSALVNQIGEILGADLDVIMSLNNLDEESNK
KHPFPCPTTYRTALTYYLDITNPPRTNVLYELAQYASEPSEQEHLHKMAS
SSGEGKELYLSWVVEARRHILAILQDYPSLRPPIDHLCELLPRLQARYYS
IASSSKVHPNSVHICAVAVEYEAKSGRVNKGVATSWLRAKEPALVPMFVR
KSQFRLPFKSTTPVIMVGPGTGIAPFMGFIQERAWLREQGKEVGETLLYY
GCRRSDEDYLYREELARFHKDGALTQLNVAFSREQAHKVYVQHLLKRDRE
HLWKLIHEGGAHIYVCGDARNMAKDVQNTFYDIVAEFGPMEHTQAVDYVK
KLMTKGRYSLDVWS
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 chain6j7a Chain A Residue 901 [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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PDB6j7a Crystal structure of a NADPH-cytochrome P450 oxidoreductase (CYPOR) and heme oxygenase 1 fusion protein implies a conformational change in CYPOR upon NADPH/NADP+binding.
Resolution3.269 Å
Binding residue
(original residue number in PDB)		K18 H25 E29 Y134 T135 G139 S142 K179 F207
Binding residue
(residue number reindexed from 1)		K9 H16 E20 Y125 T126 G130 S133 K170 F198
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) S634 C807 D852 W854
Catalytic site (residue number reindexed from 1) S600 C766 D811 W813
Enzyme Commision number 1.14.14.18: heme oxygenase (biliverdin-producing).
1.6.2.4: NADPH--hemoprotein reductase.
Gene Ontology
Molecular Function
GO:0003958 NADPH-hemoprotein reductase activity
GO:0004128 cytochrome-b5 reductase activity, acting on NAD(P)H
GO:0004392 heme oxygenase (decyclizing) activity
GO:0008941 nitric oxide dioxygenase NAD(P)H activity
GO:0009055 electron transfer activity
GO:0010181 FMN binding
GO:0016491 oxidoreductase activity
GO:0016787 hydrolase activity
GO:0019899 enzyme binding
GO:0047726 iron-cytochrome-c reductase activity
GO:0050660 flavin adenine dinucleotide binding
GO:0050661 NADP binding
Biological Process
GO:0003420 regulation of growth plate cartilage chondrocyte proliferation
GO:0006788 heme oxidation
GO:0007584 response to nutrient
GO:0009410 response to xenobiotic stimulus
GO:0009437 carnitine metabolic process
GO:0009725 response to hormone
GO:0009812 flavonoid metabolic process
GO:0019395 fatty acid oxidation
GO:0022900 electron transport chain
GO:0032332 positive regulation of chondrocyte differentiation
GO:0043066 negative regulation of apoptotic process
GO:0043602 nitrate catabolic process
GO:0045542 positive regulation of cholesterol biosynthetic process
GO:0045880 positive regulation of smoothened signaling pathway
GO:0046210 nitric oxide catabolic process
GO:0070988 demethylation
GO:0071371 cellular response to gonadotropin stimulus
GO:0071372 cellular response to follicle-stimulating hormone stimulus
GO:0071375 cellular response to peptide hormone stimulus
GO:0071548 response to dexamethasone
GO:0090031 positive regulation of steroid hormone biosynthetic process
GO:0090181 regulation of cholesterol metabolic process
GO:0090346 cellular organofluorine metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005783 endoplasmic reticulum
GO:0005789 endoplasmic reticulum membrane
GO:0005829 cytosol
GO:0016020 membrane
GO:0043231 intracellular membrane-bounded organelle

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:6j7a, PDBe:6j7a, PDBj:6j7a
PDBsum6j7a
PubMed30883732
UniProtP00388|NCPR_RAT NADPH--cytochrome P450 reductase (Gene Name=Por);
P06762|HMOX1_RAT Heme oxygenase 1 (Gene Name=Hmox1)

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