ID A0A1G4KMU2_9SACH Unreviewed; 247 AA.
AC A0A1G4KMU2;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 27-MAR-2024, entry version 22.
DE RecName: Full=Trimethylguanosine synthase {ECO:0000256|ARBA:ARBA00018517};
GN ORFNames=LANO_0H15874G {ECO:0000313|EMBL:SCV05819.1};
OS Lachancea nothofagi CBS 11611.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Lachancea.
OX NCBI_TaxID=1266666 {ECO:0000313|EMBL:SCV05819.1};
RN [1] {ECO:0000313|EMBL:SCV05819.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Ploux O.;
RL Submitted (MAR-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end (N(2),N(7)-dimethyl 5'-triphosphoguanosine)-
CC ribonucleoside in mRNA + S-adenosyl-L-methionine = a 5'-end
CC (N(2),N(2),N(7)-trimethyl 5'-triphosphoguanosine)-(ribonucleoside) in
CC mRNA + H(+) + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:67624,
CC Rhea:RHEA-COMP:17171, Rhea:RHEA-COMP:17315, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:167623,
CC ChEBI:CHEBI:172880; Evidence={ECO:0000256|ARBA:ARBA00024488};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67625;
CC Evidence={ECO:0000256|ARBA:ARBA00024488};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-ribonucleoside
CC in mRNA + S-adenosyl-L-methionine = a 5'-end (N(2),N(7)-dimethyl 5'-
CC triphosphoguanosine)-ribonucleoside in mRNA + H(+) + S-adenosyl-L-
CC homocysteine; Xref=Rhea:RHEA:67620, Rhea:RHEA-COMP:17167, Rhea:RHEA-
CC COMP:17315, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:156461, ChEBI:CHEBI:172880;
CC Evidence={ECO:0000256|ARBA:ARBA00024618};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67621;
CC Evidence={ECO:0000256|ARBA:ARBA00024618};
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily.
CC Trimethylguanosine synthase family. {ECO:0000256|ARBA:ARBA00025783}.
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DR EMBL; LT598447; SCV05819.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G4KMU2; -.
DR OrthoDB; 5473515at2759; -.
DR Proteomes; UP000189911; Chromosome h.
DR GO; GO:0008168; F:methyltransferase activity; IEA:InterPro.
DR GO; GO:0009452; P:7-methylguanosine RNA capping; IEA:InterPro.
DR GO; GO:0001510; P:RNA methylation; IEA:InterPro.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR InterPro; IPR019012; RNA_cap_Gua-N2-MeTrfase.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PANTHER; PTHR14741; S-ADENOSYLMETHIONINE-DEPENDENT METHYLTRANSFERASE RELATED; 1.
DR PANTHER; PTHR14741:SF32; TRIMETHYLGUANOSINE SYNTHASE; 1.
DR Pfam; PF09445; Methyltransf_15; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
SQ SEQUENCE 247 AA; 28936 MW; A11014BC93113FC7 CRC64;
MARRRRLKTS ELEHFIHMSK HKYKTQRKAL KGLFREDSFR IEPNVKMADR SIFKYWKNRM
SLFSQMQCKD LYMTRELWYS VTPETVAKFA ARFIKSCLPE AQVILDVYCG GGGNTIQLAQ
YFPKVYGVDN SLEHLYCTYR NAQAYNVEDR IWLKYGDWPT LSRKRRFEKL KIDCVFSSPP
WGGPQYLKSQ VYDLEAALLP QGLRETLEGF LRVSANVVLF LPRNSDLGQI AQVTRELLGD
KAYCKVL
//
