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AUSO_ASPCI
ID   AUSO_ASPCI              Reviewed;         298 AA.
AC   A0A0U5GFR4;
DT   29-SEP-2021, integrated into UniProtKB/Swiss-Prot.
DT   16-MAR-2016, sequence version 1.
DT   03-AUG-2022, entry version 15.
DE   RecName: Full=Iron/alpha-ketoglutarate-dependent dioxygenase ausO {ECO:0000303|PubMed:28233494};
DE            EC=1.14.-.- {ECO:0000269|PubMed:28233494};
DE   AltName: Full=Austinoid biosynthesis cluster protein O {ECO:0000303|PubMed:28233494};
GN   Name=ausO {ECO:0000303|PubMed:28233494};
GN   ORFNames=ASPCAL14353 {ECO:0000312|EMBL:CEL11250.1};
OS   Aspergillus calidoustus.
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Nidulantes.
OX   NCBI_TaxID=454130;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SF006504;
RX   PubMed=26966204; DOI=10.1128/genomea.00102-16;
RA   Horn F., Linde J., Mattern D.J., Walther G., Guthke R., Scherlach K.,
RA   Martin K., Brakhage A.A., Petzke L., Valiante V.;
RT   "Draft genome sequences of fungus Aspergillus calidoustus.";
RL   Genome Announc. 4:0-0(2016).
RN   [2]
RP   FUNCTION, AND PATHWAY.
RX   PubMed=28233494; DOI=10.1021/acschembio.7b00003;
RA   Valiante V., Mattern D.J., Schueffler A., Horn F., Walther G.,
RA   Scherlach K., Petzke L., Dickhaut J., Guthke R., Hertweck C., Nett M.,
RA   Thines E., Brakhage A.A.;
RT   "Discovery of an Extended Austinoid Biosynthetic Pathway in Aspergillus
RT   calidoustus.";
RL   ACS Chem. Biol. 12:1227-1234(2017).
RN   [3]
RP   FUNCTION.
RX   PubMed=29076725; DOI=10.1021/acschembio.7b00814;
RA   Mattern D.J., Valiante V., Horn F., Petzke L., Brakhage A.A.;
RT   "Rewiring of the austinoid biosynthetic pathway in filamentous fungi.";
RL   ACS Chem. Biol. 12:2927-2933(2017).
CC   -!- FUNCTION: Iron/alpha-ketoglutarate-dependent dioxygenase; part of the
CC       gene cluster that mediates the biosynthesis of calidodehydroaustin, a
CC       fungal meroterpenoid (PubMed:28233494, PubMed:29076725). The first step
CC       of the pathway is the synthesis of 3,5-dimethylorsellinic acid by the
CC       polyketide synthase ausA (PubMed:28233494). 3,5-dimethylorsellinic acid
CC       is then prenylated by the polyprenyl transferase ausN
CC       (PubMed:28233494). Further epoxidation by the FAD-dependent
CC       monooxygenase ausM and cyclization by the probable terpene cyclase ausL
CC       lead to the formation of protoaustinoid A (By similarity).
CC       Protoaustinoid A is then oxidized to spiro-lactone preaustinoid A3 by
CC       the combined action of the FAD-binding monooxygenases ausB and ausC,
CC       and the dioxygenase ausE (By similarity). Acid-catalyzed keto-
CC       rearrangement and ring contraction of the tetraketide portion of
CC       preaustinoid A3 by ausJ lead to the formation of preaustinoid A4 (By
CC       similarity). The aldo-keto reductase ausK, with the help of ausH, is
CC       involved in the next step by transforming preaustinoid A4 into
CC       isoaustinone which is in turn hydroxylated by the P450 monooxygenase
CC       ausI to form austinolide (By similarity). The cytochrome P450
CC       monooxygenase ausG modifies austinolide to austinol (By similarity).
CC       Austinol is further acetylated to austin by the O-acetyltransferase
CC       ausP, which spontaneously changes to dehydroaustin (PubMed:28233494).
CC       The cytochrome P450 monooxygenase ausR then converts dehydroaustin is
CC       into 7-dehydrodehydroaustin (PubMed:28233494). The hydroxylation
CC       catalyzed by ausR permits the O-acetyltransferase ausQ to add an
CC       additional acetyl group to the molecule, leading to the formation of
CC       acetoxydehydroaustin (PubMed:28233494). The short chain dehydrogenase
CC       ausT catalyzes the reduction of the double bond present between carbon
CC       atoms 1 and 2 to convert 7-dehydrodehydroaustin into 1,2-dihydro-7-
CC       hydroxydehydroaustin (PubMed:28233494). AusQ catalyzes not only an
CC       acetylation reaction but also the addition of the PKS ausV diketide
CC       product to 1,2-dihydro-7-hydroxydehydroaustin, forming
CC       precalidodehydroaustin (PubMed:28233494). Finally, the iron/alpha-
CC       ketoglutarate-dependent dioxygenase converts precalidodehydroaustin
CC       into calidodehydroaustin (PubMed:28233494).
CC       {ECO:0000250|UniProtKB:Q5ATJ7, ECO:0000269|PubMed:28233494,
CC       ECO:0000269|PubMed:29076725}.
CC   -!- COFACTOR:
CC       Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC         Evidence={ECO:0000250|UniProtKB:Q5AR53};
CC   -!- PATHWAY: Secondary metabolite biosynthesis; terpenoid biosynthesis.
CC       {ECO:0000269|PubMed:28233494}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:Q4WAW9}.
CC   -!- MISCELLANEOUS: In A.calidoustus, the austinoid gene cluster lies on a
CC       contiguous DNA region, while clusters from E.nidulans and P.brasilianum
CC       are split in their respective genomes. Genetic rearrangements provoked
CC       variability among the clusters and E.nidulans produces the least number
CC       of austionoid derivatives with the end products austinol and
CC       dehydroaustinol, while P.brasilianum can produce until
CC       acetoxydehydroaustin, and A.calidoustus produces the highest number of
CC       identified derivatives. {ECO:0000305|PubMed:29076725}.
CC   -!- SIMILARITY: Belongs to the PhyH family. {ECO:0000305}.
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DR   EMBL; CDMC01000024; CEL11250.1; -; Genomic_DNA.
DR   SMR; A0A0U5GFR4; -.
DR   EnsemblFungi; CEL11250; CEL11250; ASPCAL14353.
DR   OrthoDB; 623398at2759; -.
DR   UniPathway; UPA00213; -.
DR   Proteomes; UP000054771; Unassembled WGS sequence.
DR   GO; GO:0051213; F:dioxygenase activity; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniPathway.
DR   InterPro; IPR008775; Phytyl_CoA_dOase.
DR   Pfam; PF05721; PhyH; 1.
PE   3: Inferred from homology;
KW   Dioxygenase; Iron; Metal-binding; Oxidoreductase; Reference proteome.
FT   CHAIN           1..298
FT                   /note="Iron/alpha-ketoglutarate-dependent dioxygenase ausO"
FT                   /id="PRO_0000453862"
FT   BINDING         130
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250|UniProtKB:Q5AR53"
FT   BINDING         132
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250|UniProtKB:Q5AR53"
FT   BINDING         211
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250|UniProtKB:Q5AR53"
SQ   SEQUENCE   298 AA;  32876 MW;  B65A1CA4B623444F CRC64;
     MKIPDNPQIQ RFPATTPAPT LWKAVADDGV AIVTNAIPID TIQRFHADID NTGHATYLED
     YKAFKDKEFP VQAKHASNLV RTSPVFRHEI LNTPLIHEIC TAAFQHLGDY WLTSSIFRST
     NPGNPAQDFH RDALFHPLLQ YQSPSAPHLT VSLIIPTTPF TKANGATRVI LGSHKWENMT
     PQNIDALSKD DSVHAEMNAG DIMILHQRTI HAGGEHLPEA KDTRRLLLLL FTSCQLAQLE
     SALALPRPLV ESLTPLAQKM VGWRTVKPAG VNVVGLNTYH TGTLEDGLGL RSNQTMAG
 
 
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