TRI7_FUSSP
ID TRI7_FUSSP Reviewed; 441 AA.
AC Q9C1B8;
DT 22-NOV-2017, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2001, sequence version 1.
DT 03-AUG-2022, entry version 33.
DE RecName: Full=Acetyltransferase TRI7 {ECO:0000303|PubMed:11352533};
DE EC=2.3.1.- {ECO:0000269|PubMed:11352533};
DE AltName: Full=Core trichothecene cluster (CTC) protein 7 {ECO:0000303|PubMed:11352533};
GN Name=TRI7 {ECO:0000303|PubMed:12039755};
OS Fusarium sporotrichioides.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Hypocreales; Nectriaceae; Fusarium.
OX NCBI_TaxID=5514;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, CATALYTIC ACTIVITY, DISRUPTION
RP PHENOTYPE, AND PATHWAY.
RC STRAIN=ATCC 24631 / NRRL 3299;
RX PubMed=11352533; DOI=10.1006/fgbi.2001.1256;
RA Brown D.W., McCormick S.P., Alexander N.J., Proctor R.H., Desjardins A.E.;
RT "A genetic and biochemical approach to study trichothecene diversity in
RT Fusarium sporotrichioides and Fusarium graminearum.";
RL Fungal Genet. Biol. 32:121-133(2001).
RN [2]
RP FUNCTION.
RX PubMed=3800398; DOI=10.1016/0003-9861(86)90386-3;
RA Hohn T.M., Vanmiddlesworth F.;
RT "Purification and characterization of the sesquiterpene cyclase trichodiene
RT synthetase from Fusarium sporotrichioides.";
RL Arch. Biochem. Biophys. 251:756-761(1986).
RN [3]
RP FUNCTION.
RX PubMed=2317042; DOI=10.1128/aem.56.3.702-706.1990;
RA McCormick S.P., Taylor S.L., Plattner R.D., Beremand M.N.;
RT "Bioconversion of possible T-2 toxin precursors by a mutant strain of
RT Fusarium sporotrichioides NRRL 3299.";
RL Appl. Environ. Microbiol. 56:702-706(1990).
RN [4]
RP FUNCTION.
RX PubMed=7651333; DOI=10.1007/bf02456618;
RA Hohn T.M., Desjardins A.E., McCormick S.P.;
RT "The Tri4 gene of Fusarium sporotrichioides encodes a cytochrome P450
RT monooxygenase involved in trichothecene biosynthesis.";
RL Mol. Gen. Genet. 248:95-102(1995).
RN [5]
RP FUNCTION.
RX PubMed=8593041; DOI=10.1128/aem.62.2.353-359.1996;
RA McCormick S.P., Hohn T.M., Desjardins A.E.;
RT "Isolation and characterization of Tri3, a gene encoding 15-O-
RT acetyltransferase from Fusarium sporotrichioides.";
RL Appl. Environ. Microbiol. 62:353-359(1996).
RN [6]
RP FUNCTION.
RX PubMed=9435078; DOI=10.1128/aem.64.1.221-225.1998;
RA Alexander N.J., Hohn T.M., McCormick S.P.;
RT "The TRI11 gene of Fusarium sporotrichioides encodes a cytochrome P-450
RT monooxygenase required for C-15 hydroxylation in trichothecene
RT biosynthesis.";
RL Appl. Environ. Microbiol. 64:221-225(1998).
RN [7]
RP FUNCTION.
RX PubMed=10583973; DOI=10.1128/aem.65.12.5252-5256.1999;
RA McCormick S.P., Alexander N.J., Trapp S.E., Hohn T.M.;
RT "Disruption of TRI101, the gene encoding trichothecene 3-O-
RT acetyltransferase, from Fusarium sporotrichioides.";
RL Appl. Environ. Microbiol. 65:5252-5256(1999).
RN [8]
RP FUNCTION.
RX PubMed=12039755; DOI=10.1128/aem.68.6.2959-2964.2002;
RA McCormick S.P., Alexander N.J.;
RT "Fusarium Tri8 encodes a trichothecene C-3 esterase.";
RL Appl. Environ. Microbiol. 68:2959-2964(2002).
RN [9]
RP FUNCTION.
RX PubMed=12135578; DOI=10.1016/s1087-1845(02)00021-x;
RA Brown D.W., McCormick S.P., Alexander N.J., Proctor R.H., Desjardins A.E.;
RT "Inactivation of a cytochrome P-450 is a determinant of trichothecene
RT diversity in Fusarium species.";
RL Fungal Genet. Biol. 36:224-233(2002).
RN [10]
RP FUNCTION.
RX PubMed=12620849; DOI=10.1128/aem.69.3.1607-1613.2003;
RA Meek I.B., Peplow A.W., Ake C. Jr., Phillips T.D., Beremand M.N.;
RT "Tri1 encodes the cytochrome P450 monooxygenase for C-8 hydroxylation
RT during trichothecene biosynthesis in Fusarium sporotrichioides and resides
RT upstream of another new Tri gene.";
RL Appl. Environ. Microbiol. 69:1607-1613(2003).
RN [11]
RP INDUCTION.
RX PubMed=12732543; DOI=10.1128/aem.69.5.2731-2736.2003;
RA Peplow A.W., Tag A.G., Garifullina G.F., Beremand M.N.;
RT "Identification of new genes positively regulated by Tri10 and a regulatory
RT network for trichothecene mycotoxin production.";
RL Appl. Environ. Microbiol. 69:2731-2736(2003).
RN [12]
RP FUNCTION.
RX PubMed=14532047; DOI=10.1128/aem.69.10.5935-5940.2003;
RA Peplow A.W., Meek I.B., Wiles M.C., Phillips T.D., Beremand M.N.;
RT "Tri16 is required for esterification of position C-8 during trichothecene
RT mycotoxin production by Fusarium sporotrichioides.";
RL Appl. Environ. Microbiol. 69:5935-5940(2003).
RN [13]
RP FUNCTION.
RX PubMed=16917519; DOI=10.1139/w06-011;
RA McCormick S.P., Alexander N.J., Proctor R.H.;
RT "Fusarium Tri4 encodes a multifunctional oxygenase required for
RT trichothecene biosynthesis.";
RL Can. J. Microbiol. 52:636-642(2006).
CC -!- FUNCTION: Acetyltransferase; part of the core gene cluster that
CC mediates the biosynthesis of trichothecenes, a very large family of
CC chemically related bicyclic sesquiterpene compounds acting as
CC mycotoxins, including T2-toxin (PubMed:11352533). The biosynthesis of
CC trichothecenes begins with the cyclization of farnesyl diphosphate to
CC trichodiene and is catalyzed by the trichodiene synthase TRI5
CC (PubMed:3800398). Trichodiene undergoes a series of oxygenations
CC catalyzed by the cytochrome P450 monooxygenase TRI4 (PubMed:7651333).
CC TRI4 controls the addition of four oxygens at C-2, C-3, C-11, and the
CC C-12, C-13-epoxide to form the intermediate isotrichotriol
CC (PubMed:16917519). Isotrichotriol then undergoes a non-enzymatic
CC isomerization and cyclization to form isotrichodermol (PubMed:2317042).
CC During this process, the oxygen at the C-2 position becomes the pyran
CC ring oxygen and the hydroxyl group at C-11 is lost (PubMed:2317042).
CC More complex type A trichothecenes are built by modifying
CC isotrichodermol through a series of paired hydroxylation and
CC acetylation or acylation steps (PubMed:11352533). Isotrichodermol is
CC converted to isotrichodermin by the acetyltransferase TRI101
CC (PubMed:10583973). TRI101 encodes a C-3 transacetylase that acts as a
CC self-protection or resistance factor during biosynthesis and that the
CC presence of a free C-3 hydroxyl group is a key component of Fusarium
CC trichothecene phytotoxicity (PubMed:10583973). A second hydroxyl group
CC is added to C-15 by the trichothecene C-15 hydroxylase TRI11, producing
CC 15-decalonectrin, which is then acetylated by TRI3, producing
CC calonectrin (PubMed:9435078, PubMed:8593041). A third hydroxyl group is
CC added at C-4 by the cytochrome P450 monooxygenase TRI13, converting
CC calonectrin to 3,15-diacetoxyspirpenol, which is subsequently
CC acetylated by the acetyltransferase TRI7 (PubMed:12135578,
CC PubMed:11352533). A fourth hydroxyl group is added to C-8 by the
CC cytochrome P450 monooxygenase TRI1, followed by the addition of an
CC isovaleryl moiety by TRI16 (PubMed:12620849, PubMed:14532047). Finally,
CC the acetyl group is removed from the C-3 position by the trichothecene
CC C-3 esterase TRI8 to produce T-2 toxin (PubMed:12039755).
CC {ECO:0000269|PubMed:10583973, ECO:0000269|PubMed:11352533,
CC ECO:0000269|PubMed:12039755, ECO:0000269|PubMed:12135578,
CC ECO:0000269|PubMed:12620849, ECO:0000269|PubMed:14532047,
CC ECO:0000269|PubMed:16917519, ECO:0000269|PubMed:2317042,
CC ECO:0000269|PubMed:3800398, ECO:0000269|PubMed:7651333,
CC ECO:0000269|PubMed:8593041, ECO:0000269|PubMed:9435078}.
CC -!- PATHWAY: Sesquiterpene biosynthesis; trichothecene biosynthesis.
CC {ECO:0000269|PubMed:11352533}.
CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000255}; Multi-pass membrane
CC protein {ECO:0000255}.
CC -!- INDUCTION: Expression is positively regulated by the trichothecene
CC cluster-specific transcription activator TRI10 (PubMed:12732543).
CC {ECO:0000269|PubMed:12732543}.
CC -!- DISRUPTION PHENOTYPE: Does not produce T-2 toxin, but accumulated HT-2
CC toxin by an alternate pathway that presumably included C-8 oxidation of
CC 3,15-diacetoxyscirpenol to produce 3,15-diacetyl-T-2 tetraol, C-8
CC esterification to 3-acetyl HT-2 toxin, and C-3 deacetylation to HT-2
CC toxin (PubMed:11352533). {ECO:0000269|PubMed:11352533}.
CC -!- MISCELLANEOUS: Trichothecenes are sesquiterpenoid toxins that act by
CC inhibiting protein biosynthesis. {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the wax synthase family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AF359360; AAK33076.1; -; Genomic_DNA.
DR AlphaFoldDB; Q9C1B8; -.
DR BioCyc; MetaCyc:MON-19563; -.
DR UniPathway; UPA00267; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0008374; F:O-acyltransferase activity; IEA:InterPro.
DR GO; GO:0006629; P:lipid metabolic process; IEA:InterPro.
DR InterPro; IPR044851; Wax_synthase.
DR InterPro; IPR032805; Wax_synthase_dom.
DR PANTHER; PTHR31595; PTHR31595; 1.
DR Pfam; PF13813; MBOAT_2; 1.
PE 1: Evidence at protein level;
KW Acyltransferase; Membrane; Transferase; Transmembrane; Transmembrane helix.
FT CHAIN 1..441
FT /note="Acetyltransferase TRI7"
FT /id="PRO_0000442368"
FT TRANSMEM 14..34
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 75..95
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 158..178
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 306..326
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 336..356
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 377..397
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 421..441
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 441 AA; 49760 MW; D2A861D0F5B05995 CRC64;
MDIASKVEGF PTLGILYYTS TLLAVCTYAA LIIISIPKTG PASLVRYSSP AIVLTVGKQL
FHASYGVSGS LAHRSLTLAL TALFILQCCN FLVLTRLDAK DLAKKNIFQD SDHMIYKAYR
VVCLIFNVRG IGTPWQAKHL CGFPRFYQRG KGRGPTPIWF ILRQSLIVAW QCLLLDIIYT
TSMSTPKEDT LKLFGEGTEY MYLDANAEQW TGRFIAGIIA WVIPGRVSID LPHRVLSIIS
VFLGFSSPQQ WPPLFGSMLD AYTIRGFWST FWHSYCRWTL TTISSFICRD FLRLPRPSIV
ERYLNIAFVF LGSAVVHMAI DSFCWGPPMK TKLPTLAFFG SLVVGIIIED TIQALCRRIT
GEKRRDGDDG VPVWHKLVGY IWVSFWFMMT SPWYLYHNSR LPPDDTWLVP VSFVDTFGLD
TATMLLFGSG VILKFAIGIE V
