ID I3KIU5_ORENI Unreviewed; 681 AA.
AC I3KIU5;
DT 11-JUL-2012, integrated into UniProtKB/TrEMBL.
DT 17-JUN-2020, sequence version 2.
DT 27-MAR-2024, entry version 76.
DE RecName: Full=NADPH--cytochrome P450 reductase {ECO:0000256|HAMAP-Rule:MF_03212, ECO:0000256|PIRNR:PIRNR000208};
DE Short=CPR {ECO:0000256|HAMAP-Rule:MF_03212};
DE Short=P450R {ECO:0000256|HAMAP-Rule:MF_03212};
DE EC=1.6.2.4 {ECO:0000256|HAMAP-Rule:MF_03212, ECO:0000256|PIRNR:PIRNR000208};
GN Name=POR {ECO:0000256|HAMAP-Rule:MF_03212};
OS Oreochromis niloticus (Nile tilapia) (Tilapia nilotica).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Ovalentaria; Cichlomorphae; Cichliformes; Cichlidae; African cichlids;
OC Pseudocrenilabrinae; Oreochromini; Oreochromis.
OX NCBI_TaxID=8128 {ECO:0000313|Ensembl:ENSONIP00000021040.2, ECO:0000313|Proteomes:UP000005207};
RN [1] {ECO:0000313|Proteomes:UP000005207}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG Broad Institute Genome Assembly Team;
RG Broad Institute Sequencing Platform;
RA Di Palma F., Johnson J., Lander E.S., Lindblad-Toh K.;
RT "The Genome Sequence of Oreochromis niloticus (Nile Tilapia).";
RL Submitted (JAN-2012) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSONIP00000021040.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: This enzyme is required for electron transfer from NADP to
CC cytochrome P450 in microsomes. It can also provide electron transfer to
CC heme oxygenase and cytochrome B5. {ECO:0000256|HAMAP-Rule:MF_03212}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=NADPH + 2 oxidized [cytochrome P450] = H(+) + NADP(+) + 2
CC reduced [cytochrome P450]; Xref=Rhea:RHEA:24040, Rhea:RHEA-
CC COMP:14627, Rhea:RHEA-COMP:14628, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:55376, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:60344; EC=1.6.2.4; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03212, ECO:0000256|PIRNR:PIRNR000208};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03212};
CC Note=Binds 1 FAD per monomer. {ECO:0000256|HAMAP-Rule:MF_03212};
CC -!- COFACTOR:
CC Name=FMN; Xref=ChEBI:CHEBI:58210;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03212};
CC Note=Binds 1 FMN per monomer. {ECO:0000256|HAMAP-Rule:MF_03212};
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000256|HAMAP-Rule:MF_03212}; Single-pass membrane protein
CC {ECO:0000256|HAMAP-Rule:MF_03212}; Cytoplasmic side {ECO:0000256|HAMAP-
CC Rule:MF_03212}.
CC -!- SIMILARITY: Belongs to the NADPH--cytochrome P450 reductase family.
CC {ECO:0000256|HAMAP-Rule:MF_03212}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the flavoprotein
CC pyridine nucleotide cytochrome reductase family. {ECO:0000256|HAMAP-
CC Rule:MF_03212, ECO:0000256|PIRNR:PIRNR000208}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the flavodoxin
CC family. {ECO:0000256|HAMAP-Rule:MF_03212}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03212}.
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DR AlphaFoldDB; I3KIU5; -.
DR STRING; 8128.ENSONIP00000041380; -.
DR Ensembl; ENSONIT00000021059.2; ENSONIP00000021040.2; ENSONIG00000016702.2.
DR eggNOG; KOG1158; Eukaryota.
DR GeneTree; ENSGT00940000156847; -.
DR HOGENOM; CLU_001570_17_3_1; -.
DR OMA; QKRYQRD; -.
DR TreeFam; TF105719; -.
DR Proteomes; UP000005207; Linkage group LG14.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010181; F:FMN binding; IEA:UniProtKB-UniRule.
DR GO; GO:0050661; F:NADP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003958; F:NADPH-hemoprotein reductase activity; IEA:UniProtKB-UniRule.
DR CDD; cd06204; CYPOR; 1.
DR Gene3D; 3.40.50.360; -; 1.
DR Gene3D; 3.40.50.80; Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module; 1.
DR Gene3D; 2.40.30.10; Translation factors; 1.
DR HAMAP; MF_03212; NCPR; 1.
DR InterPro; IPR003097; CysJ-like_FAD-binding.
DR InterPro; IPR017927; FAD-bd_FR_type.
DR InterPro; IPR001094; Flavdoxin-like.
DR InterPro; IPR008254; Flavodoxin/NO_synth.
DR InterPro; IPR001709; Flavoprot_Pyr_Nucl_cyt_Rdtase.
DR InterPro; IPR029039; Flavoprotein-like_sf.
DR InterPro; IPR039261; FNR_nucleotide-bd.
DR InterPro; IPR023173; NADPH_Cyt_P450_Rdtase_alpha.
DR InterPro; IPR001433; OxRdtase_FAD/NAD-bd.
DR InterPro; IPR023208; P450R.
DR InterPro; IPR017938; Riboflavin_synthase-like_b-brl.
DR PANTHER; PTHR19384:SF17; NADPH--CYTOCHROME P450 REDUCTASE; 1.
DR PANTHER; PTHR19384; NITRIC OXIDE SYNTHASE-RELATED; 1.
DR Pfam; PF00667; FAD_binding_1; 1.
DR Pfam; PF00258; Flavodoxin_1; 1.
DR Pfam; PF00175; NAD_binding_1; 1.
DR PIRSF; PIRSF000208; P450R; 1.
DR PRINTS; PR00369; FLAVODOXIN.
DR PRINTS; PR00371; FPNCR.
DR SUPFAM; SSF52343; Ferredoxin reductase-like, C-terminal NADP-linked domain; 1.
DR SUPFAM; SSF52218; Flavoproteins; 1.
DR SUPFAM; SSF63380; Riboflavin synthase domain-like; 1.
DR PROSITE; PS51384; FAD_FR; 1.
DR PROSITE; PS50902; FLAVODOXIN_LIKE; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824, ECO:0000256|HAMAP-
KW Rule:MF_03212};
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|HAMAP-Rule:MF_03212};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|HAMAP-
KW Rule:MF_03212};
KW FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|HAMAP-Rule:MF_03212};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_03212};
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_03212};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_03212}; Reference proteome {ECO:0000313|Proteomes:UP000005207};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_03212};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_03212}.
FT TRANSMEM 25..46
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT DOMAIN 83..228
FT /note="Flavodoxin-like"
FT /evidence="ECO:0000259|PROSITE:PS50902"
FT DOMAIN 283..524
FT /note="FAD-binding FR-type"
FT /evidence="ECO:0000259|PROSITE:PS51384"
FT BINDING 89..94
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 141..144
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 177..186
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 212
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 302
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 458..461
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 476..478
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 482
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 492..495
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 538
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 599..600
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 605..609
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 642
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
FT BINDING 680
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03212"
SQ SEQUENCE 681 AA; 77433 MW; 8B8F534F8F0F4F5D CRC64;
MMTHMPDMDT ETTHTEPAVD EEASLFSTMD LLLFSVIVGF VVYWFMSRKK PEPIPEFKKL
DTPTPTTRET SFIEKMKKTG KNIIVFYGSQ TGTAEEFANR LSKDAQRYGM KGMVADPEEY
SMGELSRLSE IKNSLAIFCM ATYGEGDPTD NAQDFYDWLQ ENDDEDLSGL NYTVFGLGNK
TYEHYNAMGK YVDKKLEELG ATRIFDLGMG DDDGNLEEDF VSWREQFWPA VCEHFGVEAS
GDESSIRQYE LKEHTDINMN KVYTGEIGRL KSFEVQKPPF DSKNPFLAPV TVNRKLNKAG
DRHLMHLELD ITGSKIRYES GDHVAVFPTN DSALVNKLGQ ILGVDLDVVI SLNNLDEESN
KKHPFPCPTT YRTALTHYLD ISHPPRTNVL YELAQYASDP KDQENMRKMA SSSPEGKALY
QSWVLDASRN ILAILEDMPS LRPPVDHLCE LLPRLQARYY SIASSSKVHP NSIHICAVVV
EYKTKTGRTN KGVATNWLKN KLVTDNGHKS TVPMYIRKSQ FRLPFKSTNP VIMVGPGTGI
APFMGFIQER GWLKQQGKEV GETVLFFGCR HKNEDYIYQE ELEGAEKNGV LTQLNVAFSR
DQDHKVYVQH LLTKNKEHVW KLIHTDNAHI YICGDARNMA KDVQTAFYEI AEEVGGMTRT
QAVDYVKKLM TKGRYSQDVW S
//
