ID A0A1E3QJH5_9ASCO Unreviewed; 254 AA.
AC A0A1E3QJH5;
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=BABINDRAFT_40730 {ECO:0000313|EMBL:ODQ77846.1};
OS Babjeviella inositovora NRRL Y-12698.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; CUG-Ser1 clade incertae sedis; Babjeviella.
OX NCBI_TaxID=984486 {ECO:0000313|EMBL:ODQ77846.1, ECO:0000313|Proteomes:UP000094336};
RN [1] {ECO:0000313|Proteomes:UP000094336}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NRRL Y-12698 {ECO:0000313|Proteomes:UP000094336};
RG DOE Joint Genome Institute;
RA Riley R., Haridas S., Wolfe K.H., Lopes M.R., Hittinger C.T., Goker M.,
RA Salamov A., Wisecaver J., Long T.M., Aerts A.L., Barry K., Choi C.,
RA Clum A., Coughlan A.Y., Deshpande S., Douglass A.P., Hanson S.J.,
RA Klenk H.-P., Labutti K., Lapidus A., Lindquist E., Lipzen A.,
RA Meier-Kolthoff J.P., Ohm R.A., Otillar R.P., Pangilinan J., Peng Y.,
RA Rokas A., Rosa C.A., Scheuner C., Sibirny A.A., Slot J.C., Stielow J.B.,
RA Sun H., Kurtzman C.P., Blackwell M., Grigoriev I.V., Jeffries T.W.;
RT "Comparative genomics of biotechnologically important yeasts.";
RL Submitted (MAY-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; KV454438; ODQ77846.1; -; Genomic_DNA.
DR RefSeq; XP_018983174.1; XM_019131989.1.
DR AlphaFoldDB; A0A1E3QJH5; -.
DR STRING; 984486.A0A1E3QJH5; -.
DR GeneID; 30149842; -.
DR OrthoDB; 5473515at2759; -.
DR Proteomes; UP000094336; Unassembled WGS sequence.
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;
KW Reference proteome {ECO:0000313|Proteomes:UP000094336}.
SQ SEQUENCE 254 AA; 29130 MW; 440DB884D99F1C9C CRC64;
MPIIPHDPTE LLMHSHHTLP KNCKKYWDHR YLLFSKFDEG VYMNSELWYS VTPENIALFL
AKLFYYCYPE AETIMDVFSG GGGNTIQFAR YFPKVLALER NGTNIFCTQN NTRVYGVQEK
VSFIHADWVE FAQQQEEIKR LSSTVDIIFS SPPWGGPGYV KNKTFDLDLL QPAPLKAILQ
TFLRITNHVG LFLPRNSNLD QLAEATRELL GEEARCRVVY VNLQGYCKGI VALWGPKFMT
SEQETNGGAE ELPY
//