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TCMO_CATRO
ID   TCMO_CATRO              Reviewed;         505 AA.
AC   P48522;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Trans-cinnamate 4-monooxygenase;
DE            EC=1.14.14.91 {ECO:0000250|UniProtKB:Q04468};
DE   AltName: Full=Cinnamic acid 4-hydroxylase;
DE            Short=C4H;
DE            Short=CA4H;
DE   AltName: Full=Cytochrome P450 73;
DE   AltName: Full=Cytochrome P450C4H;
GN   Name=CYP73A4;
OS   Catharanthus roseus (Madagascar periwinkle) (Vinca rosea).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Gentianales; Apocynaceae; Rauvolfioideae; Vinceae;
OC   Catharanthinae; Catharanthus.
OX   NCBI_TaxID=4058;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=7589568; DOI=10.1016/0014-5793(95)01141-z;
RA   Hotze M., Schroeder G., Schroeder J.;
RT   "Cinnamate 4-hydroxylase from Catharanthus roseus, and a strategy for the
RT   functional expression of plant cytochrome P450 proteins as translational
RT   fusions with P450 reductase in Escherichia coli.";
RL   FEBS Lett. 374:345-350(1995).
CC   -!- FUNCTION: Catalyzes the first oxidative step of the phenylpropanoid
CC       pathway in higher plants by transforming trans-cinnamate into p-
CC       coumarate (By similarity). The compounds formed by this pathway are
CC       essential components for lignification, pollination, and defense
CC       against ultraviolet light, predators and pathogens (By similarity).
CC       {ECO:0000250|UniProtKB:Q04468}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(E)-cinnamate + O2 + reduced [NADPH--hemoprotein reductase] =
CC         (E)-4-coumarate + H(+) + H2O + oxidized [NADPH--hemoprotein
CC         reductase]; Xref=Rhea:RHEA:10608, Rhea:RHEA-COMP:11964, Rhea:RHEA-
CC         COMP:11965, ChEBI:CHEBI:12876, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15379, ChEBI:CHEBI:15669, ChEBI:CHEBI:57618,
CC         ChEBI:CHEBI:58210; EC=1.14.14.91;
CC         Evidence={ECO:0000250|UniProtKB:Q04468};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000250|UniProtKB:Q94IP1};
CC   -!- PATHWAY: Phenylpropanoid metabolism; trans-4-coumarate biosynthesis;
CC       trans-4-coumarate from trans-cinnamate: step 1/1. {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: Membrane {ECO:0000255}; Single-pass membrane
CC       protein {ECO:0000255}.
CC   -!- SIMILARITY: Belongs to the cytochrome P450 family. {ECO:0000305}.
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DR   EMBL; Z32563; CAA83552.1; -; mRNA.
DR   PIR; S68204; S68204.
DR   AlphaFoldDB; P48522; -.
DR   SMR; P48522; -.
DR   UniPathway; UPA00825; UER00789.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0016710; F:trans-cinnamate 4-monooxygenase activity; IEA:UniProtKB-EC.
DR   Gene3D; 1.10.630.10; -; 1.
DR   InterPro; IPR001128; Cyt_P450.
DR   InterPro; IPR017972; Cyt_P450_CS.
DR   InterPro; IPR002401; Cyt_P450_E_grp-I.
DR   InterPro; IPR036396; Cyt_P450_sf.
DR   Pfam; PF00067; p450; 1.
DR   PRINTS; PR00463; EP450I.
DR   PRINTS; PR00385; P450.
DR   SUPFAM; SSF48264; SSF48264; 1.
DR   PROSITE; PS00086; CYTOCHROME_P450; 1.
PE   2: Evidence at transcript level;
KW   Heme; Iron; Membrane; Metal-binding; Monooxygenase; Oxidoreductase;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..505
FT                   /note="Trans-cinnamate 4-monooxygenase"
FT                   /id="PRO_0000052243"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   BINDING         213..218
FT                   /ligand="(E)-cinnamate"
FT                   /ligand_id="ChEBI:CHEBI:15669"
FT                   /evidence="ECO:0000250|UniProtKB:Q94IP1"
FT   BINDING         306
FT                   /ligand="(E)-cinnamate"
FT                   /ligand_id="ChEBI:CHEBI:15669"
FT                   /evidence="ECO:0000250|UniProtKB:Q94IP1"
FT   BINDING         447
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000250|UniProtKB:Q94IP1"
SQ   SEQUENCE   505 AA;  58280 MW;  191D3EC24C192672 CRC64;
     MDLLLLEKTL LGLFAAIIVA SIVSKLRGKK FKLPPGPIPV PVFGNWLQVG DDLNHRNLSD
     YAKKFGEIFL LRMGQRNLVV VSSPELAKEV LHTQGVEFGS RTRNVVFDIF TGKGQDMVFT
     VYGEHWRKMR RIMTVPFFTN KVVQQYRYGW EEEAARVVED VKKNPESATN GIVLRRRLQL
     MMYNNMYRIM FDRRFESEDD PLFVKLKALN GERSRLAQGF EYNYGDFIPI LRPFLRGYLR
     ICKEVKERRL QLFKDYFVDE RKKFGSTKSM DNNSLKCAID HILEAQQKGE INEDNVLYIV
     ENINVAAIET TLWSIEWGIA ELVNHPEIQK KLRDELETVL GPGVQITEPD TYKLPYLQAV
     IKETLRLRMA IPLFLPHMNL HDAKLGGYDI PAESKILVNA WFLANNPEHW KKPEEFRPER
     FLEEESKVEA NGNDFRYLPF GVGRRSCPGI ILALPILGIT IGRLVQNFEL LPPPGKSKID
     TSEKGGQFSL HILKHSTIVL KPRTF
 
 
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