Structure of PDB 4y9u Chain B

Receptor sequence

>4y9uB (length=600) Species: 10116 (Rattus norvegicus) [Search protein sequence]

PVKESSFVEKMKKTGRNIIVFYGSQTGTAEEFANRLSKDAHRYGMRGMSA
DPEEYDLADLSSLPEIDKSLVVFCMATYTDNAQDFYDWLQETDVDLTGVK
FAVFGLGNKTYEHFNAMGKYVDQRLEQLGAQRIFELGLGDDDGNLEEDFI
TWREQFWPAVCEFFGVEAIRQYELVVHEDMDVAKVYTGEMGRLKSYENQK
PPFDAKNPFLAAVTANRKLNQGTERHLMHLELDISDSKIRYESGDHVAVY
PANDSALVNQIGEILGADLDVIMSLNNLDEESNKKHPFPCPTTYRTALTY
YLDITNPPRTNVLYELAQYASEPSEQEHLHKMASSSGEGKELYLSWVVEA
RRHILAILQDYPSLRPPIDHLCELLPRLQARYYSIASSSKVHPNSVHICA
VAVEYEAKSGRVNKGVATSWLRAKEPARALVPMFVRKSQFRLPFKSTTPV
IMVGPGTGIAPFMGFIQERAWLREQGKEVGETLLYYGCRRSDEDYLYREE
LARFHKDGALTQLNVAFSREQAHKVYVQHLLKRDREHLWKLIHEGGAHIY
VCGDARNMAKDVQNTFYDIVAEFGPMEHTQAVDYVKKLMTKGRYSLDVWS

3D structure

PDB

4y9u Mutants of Cytochrome P450 Reductase Lacking Either Gly-141 or Gly-143 Destabilize Its FMN Semiquinone.

Chain

Resolution

1.95 Å

3D
structure

Catalytic site residues are labeled in the structure
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Enzymatic activity

Catalytic site (original residue number in PDB)	Y456 S457 C630 D675 W677
Catalytic site (residue number reindexed from 1)	Y383 S384 C552 D597 W599
Enzyme Commision number	1.6.2.4: NADPH--hemoprotein reductase.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)
BS01	FMN	B	S86 T88 T90 A91 T139 Y140 L173 G174 N175 Y178 H180 F181 D208	S24 T26 T28 A29 T77 Y78 L106 G107 N108 Y111 H113 F114 D141
BS02	FAD	B	H319 R424 R454 Y455 Y456 S457 C472 A473 Y478 G488 V489 A490 T491 W677	H246 R351 R381 Y382 Y383 S384 C399 A400 Y405 G415 V416 A417 T418 W599
BS03	NAP	B	R298 G534 T535 C566 S596 R597 K602 Y604 Q606 M636	R225 G456 T457 C488 S518 R519 K524 Y526 Q528 M558

Gene Ontology

	Molecular Function
GO:0003958	NADPH-hemoprotein reductase activity
GO:0004128	cytochrome-b5 reductase activity, acting on NAD(P)H
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: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:4y9u, PDBe:4y9u, PDBj:4y9u
PDBsum	4y9u
PubMed	27189945
UniProt	P00388\|NCPR_RAT NADPH--cytochrome P450 reductase (Gene Name=Por)

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