CYP4F3
entrez
4051
canonical
uniprot
Q08477
canonical
ensembl
ENSG00000186529
resolver
ensp
ENSP00000221307
resolver
ensp
ENSP00000466395
resolver
ensp
ENSP00000466988
resolver
ensp
ENSP00000468105
resolver
genesymbol
CYP4F3
resolver
genesymbol_syn
LTB4H
resolver
hgnc
HGNC:2646
resolver
uniprot
B7Z8Z3
resolver
uniprot
O60634
resolver
uniprot
Q5U740
resolver
uniprot_entry
CP4F3_HUMAN
resolver
uniprot_sec
B7Z8Z3
resolver
uniprot_sec
O60634
resolver
uniprot_sec
Q5U740
resolver
activity_regulation
ACTIVITY REGULATION: Inhibited by carbon monoxide (CO). {ECO:0000269|PubMed:9675028}.
uniprot
proteins
amino_acid_sequence
MPQLSLSSLGLWPMAASPWLLLLLVGASWLLARILAWTYTFYDNCCRLRCFPQPPKRNWFLGHLGLIHSSEEGLLYTQSLACTFGDMCCWWVGPWHAIVRIFHPTYIKPVLFAPAAIVPKDKVFYSFLKPWLGDGLLLSAGEKWSRHRRMLTPAFHFNILKPYMKIFNESVNIMHAKWQLLASEGSARLDMFEHISLMTLDSLQKCVFSFDSHCQEKPSEYIAAILELSALVTKRHQQILLYIDFLYYLTPDGQRFRRACRLVHDFTDAVIQERRRTLPSQGVDDFLQAKAKSKTLDFIDVLLLSKDEDGKKLSDEDIRAEADTFMFEGHDTTASGLSWVLYHLAKHPEYQERCRQEVQELLKDREPKEIEWDDLAQLPFLTMCIKESLRLHPPVPAVSRCCTQDIVLPDGRVIPKGIICLISVFGTHHNPAVWPDPEVYDPFRFDPKNIKERSPLAFIPFSAGPRNCIGQAFAMAEMKVVLGLTLLRFRVLPDHTEPRRKPELVLRAEGGLWLRVEPLS
uniprot
proteins
ec_number
1.14.14.1
uniprot
proteins
ec_number
1.14.14.79
uniprot
proteins
ec_number
1.14.14.94
uniprot
proteins
function
FUNCTION: A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids and their oxygenated derivatives (oxylipins) (PubMed:11461919, PubMed:15145985, PubMed:16547005, PubMed:16820285, PubMed:18065749, PubMed:18182499, PubMed:18577768, PubMed:8486631, PubMed:9675028). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase) (PubMed:9675028). May play a role in inactivation of pro-inflammatory and anti-inflammatory oxylipins during the resolution of inflammation (PubMed:11461919, PubMed:15145985, PubMed:15364545, PubMed:16547005, PubMed:16820285, PubMed:18065749, PubMed:18182499, PubMed:18577768, PubMed:8486631, PubMed:9675028). {ECO:0000269|PubMed:11461919, ECO:0000269|PubMed:15145985, ECO:0000269|PubMed:15364545, ECO:0000269|PubMed:16547005, ECO:0000269|PubMed:16820285, ECO:0000269|PubMed:18065749, ECO:0000269|PubMed:18182499, ECO:0000269|PubMed:18577768, ECO:0000269|PubMed:8486631, ECO:0000269|PubMed:9675028}.; FUNCTION: [Isoform CYP4F3A]: Catalyzes predominantly the oxidation of the terminal carbon (omega-oxidation) of oxylipins in myeloid cells, displaying higher affinity for arachidonate metabolite leukotriene B4 (LTB4) (PubMed:11461919, PubMed:15364545, PubMed:8486631, PubMed:9675028). Inactivates LTB4 via three successive oxidative transformations to 20-hydroxy-LTB4, then to 20-oxo-LTB4 and to 20-carboxy-LTB4 (PubMed:9675028). Has omega-hydroxylase activity toward long-chain fatty acid epoxides with preference for 8,9-epoxy-(5Z,11Z,14Z)-eicosatrienoate (EET) and 9,10-epoxyoctadecanoate (PubMed:15145985). Omega-hydroxylates monohydroxy polyunsaturated fatty acids (PUFAs), including hydroxyeicosatetraenoates (HETEs) and hydroxyeicosapentaenoates (HEPEs), to dihydroxy compounds (PubMed:15364545, PubMed:9675028). Contributes to the degradation of saturated very long-chain fatty acids (VLCFAs) such as docosanoic acid, by catalyzing successive omega-oxidations to the corresponding dicarboxylic acid, thereby initiating chain shortening (PubMed:18182499). Has low hydroxylase activity toward PUFAs (PubMed:11461919, PubMed:18577768). {ECO:0000269|PubMed:11461919, ECO:0000269|PubMed:15145985, ECO:0000269|PubMed:15364545, ECO:0000269|PubMed:18182499, ECO:0000269|PubMed:18577768, ECO:0000269|PubMed:8486631, ECO:0000269|PubMed:9675028}.; FUNCTION: [Isoform CYP4F3B]: Catalyzes predominantly the oxidation of the terminal carbon (omega-oxidation) of polyunsaturated fatty acids (PUFAs) (PubMed:11461919, PubMed:16820285, PubMed:18577768). Participates in the conversion of arachidonic acid to 20-hydroxyeicosatetraenoic acid (20-HETE), a signaling molecule acting both as vasoconstrictive and natriuretic with overall effect on arterial blood pressure (PubMed:11461919, PubMed:16820285, PubMed:18577768). Has high omega-hydroxylase activity toward other PUFAs, including eicosatrienoic acid (ETA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (PubMed:16820285, PubMed:18577768). Can also catalyze the oxidation of the penultimate carbon (omega-1 oxidation) of PUFAs with lower efficiency (PubMed:18577768). Contributes to the degradation of saturated very long-chain fatty acids (VLCFAs) such as docosanoic acid and hexacosanoic acid, by catalyzing successive omega-oxidations to the corresponding dicarboxylic acids, thereby initiating chain shortening (PubMed:16547005, PubMed:18182499). Omega-hydroxylates long-chain 3-hydroxy fatty acids, likely initiating the oxidative conversion to the corresponding 3-hydroxydicarboxylic fatty acids (PubMed:18065749). Has omega-hydroxylase activity toward long-chain fatty acid epoxides with preference for 8,9-epoxy-(5Z,11Z,14Z)-eicosatrienoate (EET) and 9,10-epoxyoctadecanoate (PubMed:15145985). {ECO:0000269|PubMed:11461919, ECO:0000269|PubMed:15145985, ECO:0000269|PubMed:16547005, ECO:0000269|PubMed:16820285, ECO:0000269|PubMed:18065749, ECO:0000269|PubMed:18182499, ECO:0000269|PubMed:18577768}.
uniprot
proteins
mass_dalton
59847
uniprot
proteins
pathway_participation
PATHWAY: [Isoform CYP4F3A]: Lipid metabolism; leukotriene B4 degradation. {ECO:0000269|PubMed:9675028}.; PATHWAY: Lipid metabolism; arachidonate metabolism. {ECO:0000269|PubMed:11461919}.
uniprot
proteins
protein_family
Cytochrome P450 family
uniprot
proteins
pubmed
10409674
uniprot
proteins
pubmed
11461919
uniprot
proteins
pubmed
14702039
uniprot
proteins
pubmed
15057824
uniprot
proteins
pubmed
15145985
uniprot
proteins
pubmed
15364545
uniprot
proteins
pubmed
15489334
uniprot
proteins
pubmed
16547005
uniprot
proteins
pubmed
16820285
uniprot
proteins
pubmed
18065749
uniprot
proteins
pubmed
18182499
uniprot
proteins
pubmed
18577768
uniprot
proteins
pubmed
8486631
uniprot
proteins
pubmed
9539102
uniprot
proteins
pubmed
9675028
uniprot
proteins
sequence_length
520
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Endoplasmic reticulum membrane {ECO:0000305|PubMed:10409674}; Single-pass membrane protein {ECO:0000255}. Microsome membrane {ECO:0000305|PubMed:10409674}; Single-pass membrane protein {ECO:0000255}.
uniprot
proteins
transmembrane_region
TRANSMEM 11..31; /note="Helical"; /evidence="ECO:0000255
uniprot
proteins