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PTAL_PESFW
ID   PTAL_PESFW              Reviewed;         372 AA.
AC   A0A067XMP1; W3WSW3;
DT   31-JAN-2018, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2014, sequence version 1.
DT   03-AUG-2022, entry version 27.
DE   RecName: Full=Oxidoreductase ptaL {ECO:0000303|PubMed:24302702};
DE            EC=1.-.-.- {ECO:0000305|PubMed:24302702};
DE   AltName: Full=Pestheic acid biosynthesis cluster protein L {ECO:0000303|PubMed:24302702};
DE   Flags: Precursor;
GN   Name=ptaL {ECO:0000303|PubMed:24302702}; ORFNames=PFICI_10837;
OS   Pestalotiopsis fici (strain W106-1 / CGMCC3.15140).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC   Xylariomycetidae; Xylariales; Sporocadaceae; Pestalotiopsis.
OX   NCBI_TaxID=1229662;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, AND INDUCTION.
RC   STRAIN=W106-1 / CGMCC3.15140;
RX   PubMed=24302702; DOI=10.1002/cbic.201300626;
RA   Xu X., Liu L., Zhang F., Wang W., Li J., Guo L., Che Y., Liu G.;
RT   "Identification of the first diphenyl ether gene cluster for pestheic acid
RT   biosynthesis in plant endophyte Pestalotiopsis fici.";
RL   ChemBioChem 15:284-292(2014).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND INDUCTION.
RC   STRAIN=W106-1 / CGMCC3.15140;
RX   PubMed=25623211; DOI=10.1186/s12864-014-1190-9;
RA   Wang X., Zhang X., Liu L., Xiang M., Wang W., Sun X., Che Y., Guo L.,
RA   Liu G., Guo L., Wang C., Yin W.B., Stadler M., Zhang X., Liu X.;
RT   "Genomic and transcriptomic analysis of the endophytic fungus
RT   Pestalotiopsis fici reveals its lifestyle and high potential for synthesis
RT   of natural products.";
RL   BMC Genomics 16:28-28(2015).
CC   -!- FUNCTION: Oxidoreductase; part of the gene cluster that mediates the
CC       biosynthesis of pestheic acid, a diphenyl ether which is a biosynthetic
CC       precursor of the unique chloropupukeananes (PubMed:24302702). The
CC       biosynthesis initiates from condensation of acetate and malonate units
CC       catalyzed by the non-reducing PKS ptaA (PubMed:24302702). As the ptaA
CC       protein is TE/CLC domain-deficient, hydrolysis and Claisen cyclization
CC       of the polyketide could be catalyzed by ptaB containing a beta-
CC       lactamase domain (PubMed:24302702). The ptaB protein might hydrolyze
CC       the thioester bond between the ACP of ptaA and the intermediate to
CC       release atrochrysone carboxylic acid, which is spontaneously dehydrated
CC       to form endocrocin anthrone (PubMed:24302702). Endocrocin anthrone is
CC       then converted to endocrocin, catalyzed by the anthrone oxygenase ptaC
CC       (PubMed:24302702). Spontaneous decarboxylation of endocrocin occurs to
CC       generate emodin (PubMed:24302702). An O-methyltransferase (ptaH or
CC       ptaI) could methylate emodin to form physcion (PubMed:24302702). PtaJ
CC       could then catalyze the oxidative cleavage of physcion, and rotation of
CC       the intermediate could then afford desmethylisosulochrin
CC       (PubMed:24302702). PtaF, a putative NADH-dependent oxidoreductase,
CC       might also participate in the oxidative cleavage step
CC       (PubMed:24302702). Desmethylisosulochrin is then transformed by another
CC       O-methyltransferase (ptaH or ptaI) to form isosulochrin
CC       (PubMed:24302702). Chlorination of isosulochrin by ptaM in the
CC       cyclohexadienone B ring then produces chloroisosulochrin
CC       (PubMed:24302702). PtaE is responsible for the oxidative coupling
CC       reactions of both benzophenones isosulochrin and chloroisosulochrin to
CC       RES-1214-1 and pestheic acid respectively, regardless of chlorination.
CC       {ECO:0000269|PubMed:24302702}.
CC   -!- COFACTOR:
CC       Name=6-hydroxy-FAD; Xref=ChEBI:CHEBI:60470;
CC         Evidence={ECO:0000250|UniProtKB:Q9BRQ8};
CC       Note=Binds 6-hydroxy-FAD non-covalently.
CC       {ECO:0000250|UniProtKB:Q9BRQ8};
CC   -!- PATHWAY: Secondary metabolite biosynthesis.
CC       {ECO:0000305|PubMed:24302702}.
CC   -!- INDUCTION: The cluster is expressed in rice fermentation medium
CC       (PubMed:25623211). Three regulators are located in the cluster (ptaR1,
CC       ptaR2 and ptaR3), suggesting that the production of pestheic acid is
CC       controlled by a complex regulatory mechanism (PubMed:24302702).
CC       {ECO:0000269|PubMed:25623211, ECO:0000305|PubMed:24302702}.
CC   -!- SIMILARITY: Belongs to the FAD-dependent oxidoreductase family.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ETS76963.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; KC145148; AGO59047.1; -; Genomic_DNA.
DR   EMBL; KI912116; ETS76963.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; XP_007837609.1; XM_007839418.1.
DR   AlphaFoldDB; A0A067XMP1; -.
DR   SMR; A0A067XMP1; -.
DR   STRING; 393283.XP_007837609.1; -.
DR   EnsemblFungi; ETS76963; ETS76963; PFICI_10837.
DR   GeneID; 19275850; -.
DR   KEGG; pfy:PFICI_10837; -.
DR   eggNOG; KOG2495; Eukaryota.
DR   OrthoDB; 1463391at2759; -.
DR   Proteomes; UP000030651; Unassembled WGS sequence.
DR   GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR023753; FAD/NAD-binding_dom.
DR   Pfam; PF07992; Pyr_redox_2; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
PE   2: Evidence at transcript level;
KW   FAD; Flavoprotein; Glycoprotein; Oxidoreductase; Reference proteome;
KW   Signal.
FT   SIGNAL          1..16
FT                   /evidence="ECO:0000255"
FT   CHAIN           17..372
FT                   /note="Oxidoreductase ptaL"
FT                   /id="PRO_0000443051"
FT   BINDING         8..12
FT                   /ligand="6-hydroxy-FAD"
FT                   /ligand_id="ChEBI:CHEBI:60470"
FT                   /evidence="ECO:0000255"
FT   BINDING         51
FT                   /ligand="6-hydroxy-FAD"
FT                   /ligand_id="ChEBI:CHEBI:60470"
FT                   /evidence="ECO:0000255"
FT   BINDING         285
FT                   /ligand="6-hydroxy-FAD"
FT                   /ligand_id="ChEBI:CHEBI:60470"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        251
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00498"
SQ   SEQUENCE   372 AA;  39845 MW;  93C7369F2BADB9FB CRC64;
     MKHIVIIGGG FAGVSTAHRF LKNVGKSTTA PYKVTLVSRD SHFFWNIAAP RGIIPGQIPE
     EKLFQPIAEG FSQYGPDKFE FVLGTATDLD VGGKTLVVDV DGKATRISYD YLIIGSGSRT
     KIPGPFKSDG STDGVKQTIH DFQERVKAAK TIVVVGAGPT GVETAGELAF EYGTSKKIIL
     ISGGPTVLEN RPASVTKTAL KQLETLNVDV RVNTKAKDPV TLPDGKKELT LSGGEKLVVD
     LYIPTFGVLP NSSFVPSQYL DSNGFVQVDQ YFQVKGAEGV FAIGDVSDSE APQFWFVEKQ
     SVHIAKNLIL SLSGKAPTPY KASATGMMGL QIGKNSGTGH FGNFKLPGFL VKTIRKTLFV
     ENLPKTVDGS ML
 
 
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