ID B8BVJ6_THAPS Unreviewed; 267 AA.
AC B8BVJ6;
DT 03-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 03-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 59.
DE RecName: Full=Trimethylguanosine synthase {ECO:0000256|ARBA:ARBA00018517};
GN ORFNames=THAPSDRAFT_268358 {ECO:0000313|EMBL:EED95472.1};
OS Thalassiosira pseudonana (Marine diatom) (Cyclotella nana).
OC Eukaryota; Sar; Stramenopiles; Ochrophyta; Bacillariophyta;
OC Coscinodiscophyceae; Thalassiosirophycidae; Thalassiosirales;
OC Thalassiosiraceae; Thalassiosira.
OX NCBI_TaxID=35128 {ECO:0000313|EMBL:EED95472.1, ECO:0000313|Proteomes:UP000001449};
RN [1] {ECO:0000313|EMBL:EED95472.1, ECO:0000313|Proteomes:UP000001449}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCMP1335 {ECO:0000313|EMBL:EED95472.1};
RX PubMed=15459382; DOI=10.1126/science.1101156;
RA Armbrust E.V., Berges J.A., Bowler C., Green B.R., Martinez D.,
RA Putnam N.H., Zhou S., Allen A.E., Apt K.E., Bechner M., Brzezinski M.A.,
RA Chaal B.K., Chiovitti A., Davis A.K., Demarest M.S., Detter J.C.,
RA Glavina T., Goodstein D., Hadi M.Z., Hellsten U., Hildebrand M.,
RA Jenkins B.D., Jurka J., Kapitonov V.V., Kroger N., Lau W.W., Lane T.W.,
RA Larimer F.W., Lippmeier J.C., Lucas S., Medina M., Montsant A., Obornik M.,
RA Parker M.S., Palenik B., Pazour G.J., Richardson P.M., Rynearson T.A.,
RA Saito M.A., Schwartz D.C., Thamatrakoln K., Valentin K., Vardi A.,
RA Wilkerson F.P., Rokhsar D.S.;
RT "The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and
RT metabolism.";
RL Science 306:79-86(2004).
RN [2] {ECO:0000313|EMBL:EED95472.1, ECO:0000313|Proteomes:UP000001449}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCMP1335 {ECO:0000313|EMBL:EED95472.1};
RX PubMed=18923393; DOI=10.1038/nature07410;
RA Bowler C., Allen A.E., Badger J.H., Grimwood J., Jabbari K., Kuo A.,
RA Maheswari U., Martens C., Maumus F., Otillar R.P., Rayko E., Salamov A.,
RA Vandepoele K., Beszteri B., Gruber A., Heijde M., Katinka M., Mock T.,
RA Valentin K., Verret F., Berges J.A., Brownlee C., Cadoret J.P.,
RA Chiovitti A., Choi C.J., Coesel S., De Martino A., Detter J.C., Durkin C.,
RA Falciatore A., Fournet J., Haruta M., Huysman M.J., Jenkins B.D.,
RA Jiroutova K., Jorgensen R.E., Joubert Y., Kaplan A., Kroger N., Kroth P.G.,
RA La Roche J., Lindquist E., Lommer M., Martin-Jezequel V., Lopez P.J.,
RA Lucas S., Mangogna M., McGinnis K., Medlin L.K., Montsant A.,
RA Oudot-Le Secq M.P., Napoli C., Obornik M., Parker M.S., Petit J.L.,
RA Porcel B.M., Poulsen N., Robison M., Rychlewski L., Rynearson T.A.,
RA Schmutz J., Shapiro H., Siaut M., Stanley M., Sussman M.R., Taylor A.R.,
RA Vardi A., von Dassow P., Vyverman W., Willis A., Wyrwicz L.S.,
RA Rokhsar D.S., Weissenbach J., Armbrust E.V., Green B.R., Van de Peer Y.,
RA Grigoriev I.V.;
RT "The Phaeodactylum genome reveals the evolutionary history of diatom
RT genomes.";
RL Nature 456:239-244(2008).
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; CM000639; EED95472.1; -; Genomic_DNA.
DR RefSeq; XP_002288029.1; XM_002287993.1.
DR AlphaFoldDB; B8BVJ6; -.
DR STRING; 35128.B8BVJ6; -.
DR PaxDb; 35128-Thaps268358; -.
DR EnsemblProtists; EED95472; EED95472; THAPSDRAFT_268358.
DR GeneID; 7452350; -.
DR KEGG; tps:THAPSDRAFT_268358; -.
DR eggNOG; KOG2730; Eukaryota.
DR HOGENOM; CLU_029658_3_1_1; -.
DR InParanoid; B8BVJ6; -.
DR OMA; CALIHNN; -.
DR Proteomes; UP000001449; Chromosome 2.
DR GO; GO:0005634; C:nucleus; IBA:GO_Central.
DR GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR GO; GO:0071164; F:RNA trimethylguanosine synthase activity; IBA:GO_Central.
DR GO; GO:0036261; P:7-methylguanosine cap hypermethylation; IBA:GO_Central.
DR GO; GO:0009452; P:7-methylguanosine RNA capping; IEA:InterPro.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR InterPro; IPR002052; DNA_methylase_N6_adenine_CS.
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.
DR PROSITE; PS00092; N6_MTASE; 1.
PE 3: Inferred from homology;
KW Reference proteome {ECO:0000313|Proteomes:UP000001449}.
SQ SEQUENCE 267 AA; 29633 MW; D715FB9FC1513806 CRC64;
MKAGASQPNP YDPAVVHNKY WAQRRRLFKK FDDGIQLDGE GWYSVTPEVV ADHAGSPTIK
GKAPKAMVIL DAFCGCGGNA IAFAKLPSSV VSHIICIDVD RTKLRKAAHN ASIYSIPPNR
IIFLYDDFTI GGIDLLTEYG QRIDAIFMDP PWGGIDYHSS GKDGYDLARD MKIRGCERGC
VGFPPTKEID GFRLLQIAAA ATSTRFVVYD LPRNANKRSL AEAALEAGYE GNCKLEEHYL
NGRLKTVTAY FGQEFRQLLD LKRNDLH
//
