DHB12_XENTR
ID DHB12_XENTR Reviewed; 320 AA.
AC Q28IU1;
DT 05-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT 04-APR-2006, sequence version 1.
DT 03-AUG-2022, entry version 108.
DE RecName: Full=Very-long-chain 3-oxoacyl-CoA reductase {ECO:0000305};
DE EC=1.1.1.330 {ECO:0000250|UniProtKB:Q53GQ0};
DE AltName: Full=17-beta-hydroxysteroid dehydrogenase 12 {ECO:0000250|UniProtKB:Q53GQ0};
DE Short=17-beta-HSD 12 {ECO:0000250|UniProtKB:Q53GQ0};
DE AltName: Full=3-ketoacyl-CoA reductase {ECO:0000250|UniProtKB:Q53GQ0};
DE Short=KAR {ECO:0000250|UniProtKB:Q53GQ0};
DE AltName: Full=Estradiol 17-beta-dehydrogenase 12 {ECO:0000250|UniProtKB:Q53GQ0};
DE EC=1.1.1.62 {ECO:0000250|UniProtKB:Q53GQ0};
GN Name=hsd17b12; ORFNames=TNeu053h21.1;
OS Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX NCBI_TaxID=8364;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Neurula;
RG Sanger Xenopus tropicalis EST/cDNA project;
RL Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the second of the four reactions of the long-chain
CC fatty acids elongation cycle. This endoplasmic reticulum-bound
CC enzymatic process, allows the addition of two carbons to the chain of
CC long- and very long-chain fatty acids/VLCFAs per cycle. This enzyme has
CC a 3-ketoacyl-CoA reductase activity, reducing 3-ketoacyl-CoA to 3-
CC hydroxyacyl-CoA, within each cycle of fatty acid elongation. Thereby,
CC it may participate in the production of VLCFAs of different chain
CC lengths that are involved in multiple biological processes as
CC precursors of membrane lipids and lipid mediators. May also catalyze
CC the transformation of estrone (E1) into estradiol (E2) and play a role
CC in estrogen formation. {ECO:0000250|UniProtKB:Q53GQ0}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a very-long-chain (3R)-3-hydroxyacyl-CoA + NADP(+) = a very-
CC long-chain 3-oxoacyl-CoA + H(+) + NADPH; Xref=Rhea:RHEA:48680,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:85440, ChEBI:CHEBI:90725; EC=1.1.1.330;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=17beta-estradiol + NAD(+) = estrone + H(+) + NADH;
CC Xref=Rhea:RHEA:24612, ChEBI:CHEBI:15378, ChEBI:CHEBI:16469,
CC ChEBI:CHEBI:17263, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.1.1.62;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=17beta-estradiol + NADP(+) = estrone + H(+) + NADPH;
CC Xref=Rhea:RHEA:24616, ChEBI:CHEBI:15378, ChEBI:CHEBI:16469,
CC ChEBI:CHEBI:17263, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.1.1.62;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3-oxooctadecanoyl-CoA + H(+) + NADPH = (3R)-
CC hydroxyoctadecanoyl-CoA + NADP(+); Xref=Rhea:RHEA:39151,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:71407, ChEBI:CHEBI:76374;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(7Z,10Z,13Z,16Z)-3-oxodocosatetraenoyl-CoA + H(+) + NADPH =
CC (3R)-hydroxy-(7Z,10Z,13Z,16Z)-docosatetraenoyl-CoA + NADP(+);
CC Xref=Rhea:RHEA:39323, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349, ChEBI:CHEBI:73852, ChEBI:CHEBI:76415;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(7Z,10Z,13Z,16Z,19Z)-3-oxodocosapentaenoyl-CoA + H(+) + NADPH
CC = (3R)-hydroxy-(7Z,10Z,13Z,16Z,19Z)-docosapentaenoyl-CoA + NADP(+);
CC Xref=Rhea:RHEA:39459, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349, ChEBI:CHEBI:73863, ChEBI:CHEBI:76460;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(8Z,11Z,14Z)-3-oxoeicosatrienoyl-CoA + H(+) + NADPH = (3R)-
CC hydroxy-(8Z,11Z,14Z)-eicosatrienoyl-CoA + NADP(+);
CC Xref=Rhea:RHEA:39311, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349, ChEBI:CHEBI:71481, ChEBI:CHEBI:76411;
CC Evidence={ECO:0000250|UniProtKB:Q53GQ0};
CC -!- PATHWAY: Lipid metabolism; fatty acid biosynthesis.
CC {ECO:0000250|UniProtKB:Q53GQ0}.
CC -!- PATHWAY: Steroid biosynthesis; estrogen biosynthesis.
CC {ECO:0000250|UniProtKB:Q53GQ0}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000250|UniProtKB:Q53GQ0}; Multi-pass membrane protein
CC {ECO:0000250|UniProtKB:Q53GQ0}.
CC -!- SIMILARITY: Belongs to the short-chain dehydrogenases/reductases (SDR)
CC family. 17-beta-HSD 3 subfamily. {ECO:0000305}.
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DR EMBL; CR760225; CAJ83357.1; -; mRNA.
DR RefSeq; NP_001017234.1; NM_001017234.2.
DR AlphaFoldDB; Q28IU1; -.
DR SMR; Q28IU1; -.
DR STRING; 8364.ENSXETP00000048094; -.
DR PaxDb; Q28IU1; -.
DR Ensembl; ENSXETT00000048094; ENSXETP00000048094; ENSXETG00000022229.
DR GeneID; 549988; -.
DR KEGG; xtr:549988; -.
DR CTD; 51144; -.
DR Xenbase; XB-GENE-945229; hsd17b12.
DR eggNOG; KOG1014; Eukaryota.
DR HOGENOM; CLU_010194_38_0_1; -.
DR InParanoid; Q28IU1; -.
DR OMA; PIADRMF; -.
DR OrthoDB; 895581at2759; -.
DR PhylomeDB; Q28IU1; -.
DR TreeFam; TF314591; -.
DR Reactome; R-XTR-193048; Androgen biosynthesis.
DR Reactome; R-XTR-75876; Synthesis of very long-chain fatty acyl-CoAs.
DR UniPathway; UPA00094; -.
DR UniPathway; UPA00769; -.
DR Proteomes; UP000008143; Chromosome 4.
DR Proteomes; UP000790000; Unplaced.
DR Bgee; ENSXETG00000022229; Expressed in liver and 18 other tissues.
DR GO; GO:0005783; C:endoplasmic reticulum; IBA:GO_Central.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0044594; F:17-beta-hydroxysteroid dehydrogenase (NAD+) activity; IEA:RHEA.
DR GO; GO:0102339; F:3-oxo-arachidoyl-CoA reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0102340; F:3-oxo-behenoyl-CoA reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0102342; F:3-oxo-cerotoyl-CoA reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0102341; F:3-oxo-lignoceroyl-CoA reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0016491; F:oxidoreductase activity; IBA:GO_Central.
DR GO; GO:0006703; P:estrogen biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-UniPathway.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR020904; Sc_DH/Rdtase_CS.
DR InterPro; IPR002347; SDR_fam.
DR Pfam; PF00106; adh_short; 1.
DR PRINTS; PR00081; GDHRDH.
DR PRINTS; PR00080; SDRFAMILY.
DR SUPFAM; SSF51735; SSF51735; 1.
DR PROSITE; PS00061; ADH_SHORT; 1.
PE 2: Evidence at transcript level;
KW Endoplasmic reticulum; Lipid biosynthesis; Lipid metabolism; Membrane;
KW NADP; Oxidoreductase; Reference proteome; Steroid biosynthesis;
KW Transmembrane; Transmembrane helix.
FT CHAIN 1..320
FT /note="Very-long-chain 3-oxoacyl-CoA reductase"
FT /id="PRO_0000248375"
FT TRANSMEM 17..37
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 189..209
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 283..303
FT /note="Helical"
FT /evidence="ECO:0000255"
FT ACT_SITE 209
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10001"
FT BINDING 56..85
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 196
FT /ligand="substrate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 320 AA; 35101 MW; C216ECF085D4AF14 CRC64;
MATESLAEVP VPGCNCFWYL GVVAAVWWGL RAAWCLLDGA RVWVLGSGAQ VGPRIGKWAV
VTGATDGIGK AYAEELAKRG MNIVLISRSP EKLEEVAKQI KEKFKVETKI IAADFGKPTE
IYGRIESGLR DLEIGVLVNN VGVSYEHPEY FLEIPDLENT LDKMININIT SVCQMTRLVL
PGMLGRGRGV ILNISSASGM YPVPLLTVYS ATKAFVDFFS RGLQAEYRSK GVTVQSVLPF
YVATKLAKIR KPTWDKPSPE TYVQSALNTV GLQTQTNGYL PHAIMGWIST SLVPVSTAIS
LGMKMNKGLR ARFLKRAKQK
