ID H2TL54_TAKRU Unreviewed; 407 AA.
AC H2TL54;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 17-JUN-2020, sequence version 3.
DT 24-JAN-2024, entry version 69.
DE RecName: Full=cytochrome-b5 reductase {ECO:0000256|ARBA:ARBA00012011};
DE EC=1.6.2.2 {ECO:0000256|ARBA:ARBA00012011};
OS Takifugu rubripes (Japanese pufferfish) (Fugu rubripes).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Eupercaria; Tetraodontiformes; Tetradontoidea; Tetraodontidae; Takifugu.
OX NCBI_TaxID=31033 {ECO:0000313|Ensembl:ENSTRUP00000025409.3, ECO:0000313|Proteomes:UP000005226};
RN [1] {ECO:0000313|Ensembl:ENSTRUP00000025409.3, ECO:0000313|Proteomes:UP000005226}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=21551351;
RA Kai W., Kikuchi K., Tohari S., Chew A.K., Tay A., Fujiwara A., Hosoya S.,
RA Suetake H., Naruse K., Brenner S., Suzuki Y., Venkatesh B.;
RT "Integration of the genetic map and genome assembly of fugu facilitates
RT insights into distinct features of genome evolution in teleosts and
RT mammals.";
RL Genome Biol. Evol. 3:424-442(2011).
RN [2] {ECO:0000313|Ensembl:ENSTRUP00000025409.3}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (JUL-2023) to UniProtKB.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 Fe(III)-[cytochrome b5] + NADH = 2 Fe(II)-[cytochrome b5] +
CC H(+) + NAD(+); Xref=Rhea:RHEA:46680, Rhea:RHEA-COMP:10438, Rhea:RHEA-
CC COMP:10439, ChEBI:CHEBI:15378, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.6.2.2;
CC Evidence={ECO:0000256|ARBA:ARBA00029341};
CC -!- SIMILARITY: Belongs to the cytochrome b5 family.
CC {ECO:0000256|RuleBase:RU362121}.
CC -!- SIMILARITY: Belongs to the flavoprotein pyridine nucleotide cytochrome
CC reductase family. {ECO:0000256|ARBA:ARBA00006105}.
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DR AlphaFoldDB; H2TL54; -.
DR STRING; 31033.ENSTRUP00000025409; -.
DR Ensembl; ENSTRUT00000025512.3; ENSTRUP00000025409.3; ENSTRUG00000010094.3.
DR GeneTree; ENSGT00940000155536; -.
DR InParanoid; H2TL54; -.
DR OMA; WYMLDSA; -.
DR Proteomes; UP000005226; Chromosome 7.
DR GO; GO:0005783; C:endoplasmic reticulum; IEA:UniProtKB-KW.
DR GO; GO:0020037; F:heme binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:InterPro.
DR CDD; cd06183; cyt_b5_reduct_like; 1.
DR Gene3D; 2.60.40.790; -; 1.
DR Gene3D; 3.10.120.10; Cytochrome b5-like heme/steroid binding domain; 1.
DR Gene3D; 2.40.30.10; Translation factors; 1.
DR InterPro; IPR008333; Cbr1-like_FAD-bd_dom.
DR InterPro; IPR007052; CS_dom.
DR InterPro; IPR001199; Cyt_B5-like_heme/steroid-bd.
DR InterPro; IPR036400; Cyt_B5-like_heme/steroid_sf.
DR InterPro; IPR018506; Cyt_B5_heme-BS.
DR InterPro; IPR017927; FAD-bd_FR_type.
DR InterPro; IPR039261; FNR_nucleotide-bd.
DR InterPro; IPR008978; HSP20-like_chaperone.
DR InterPro; IPR017938; Riboflavin_synthase-like_b-brl.
DR PANTHER; PTHR46237:SF1; CYTOCHROME B5 REDUCTASE 4; 1.
DR PANTHER; PTHR46237; CYTOCHROME B5 REDUCTASE 4 FAMILY MEMBER; 1.
DR Pfam; PF00173; Cyt-b5; 1.
DR Pfam; PF00970; FAD_binding_6; 1.
DR PRINTS; PR00406; CYTB5RDTASE.
DR PRINTS; PR00363; CYTOCHROMEB5.
DR SMART; SM01117; Cyt-b5; 1.
DR SUPFAM; SSF55856; Cytochrome b5-like heme/steroid binding domain; 1.
DR SUPFAM; SSF52343; Ferredoxin reductase-like, C-terminal NADP-linked domain; 1.
DR SUPFAM; SSF49764; HSP20-like chaperones; 1.
DR SUPFAM; SSF63380; Riboflavin synthase domain-like; 1.
DR PROSITE; PS51203; CS; 1.
DR PROSITE; PS00191; CYTOCHROME_B5_1; 1.
DR PROSITE; PS50255; CYTOCHROME_B5_2; 1.
DR PROSITE; PS51384; FAD_FR; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|RuleBase:RU362121};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU362121};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU362121};
KW Reference proteome {ECO:0000313|Proteomes:UP000005226}.
FT DOMAIN 57..133
FT /note="Cytochrome b5 heme-binding"
FT /evidence="ECO:0000259|PROSITE:PS50255"
FT DOMAIN 144..235
FT /note="CS"
FT /evidence="ECO:0000259|PROSITE:PS51203"
FT DOMAIN 252..362
FT /note="FAD-binding FR-type"
FT /evidence="ECO:0000259|PROSITE:PS51384"
FT REGION 1..30
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1..26
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 407 AA; 45924 MW; 6241F13731576842 CRC64;
MLNIPTQSFP SPSSQQRVSP SGQSGRSKVA LKPGHSLMDW IRFSKSGKDL TGLRGRLIEV
SQEELRKHNN RDDCWTCIRG LVYNVTPYMD YHPGGEDELM KAAGIDGTDL FDQVHRWVNY
ESMLKECLVG RMDSIFMLFM SNLCCLPRYD WFQTDVSVHL VVYAKRKIPS AGCTSVDLEA
GVLRLEALLG KMSYMIHLRL ADEVEGNVAV HTAFSVGKIQ VSLRKKGKTK WTNLGQPLEF
HNTFVLKKER APHYCQGVLV SKTEVNHNTL IFRVKLPPGT IRHVPVGTHV YLKAVVKDAE
LVRPYTPVDQ SLTAAPQHPS EETDLFLMVK IYPDGMFSSY LNDLHVGDRL SVSGPEGAFS
LRPLRDVTHL YLLAAGTGLT PMTRLIRLAT QEMGHIRLFF CNYNYLQ
//