ID A2C0N2_PROM1 Unreviewed; 229 AA.
AC A2C0N2;
DT 20-FEB-2007, integrated into UniProtKB/TrEMBL.
DT 20-FEB-2007, sequence version 1.
DT 27-MAR-2024, entry version 83.
DE RecName: Full=tRNA (guanosine(18)-2'-O)-methyltransferase {ECO:0000256|HAMAP-Rule:MF_02060};
DE EC=2.1.1.34 {ECO:0000256|HAMAP-Rule:MF_02060};
DE AltName: Full=tRNA [Gm18] methyltransferase {ECO:0000256|HAMAP-Rule:MF_02060};
GN Name=trmH {ECO:0000256|HAMAP-Rule:MF_02060};
GN OrderedLocusNames=NATL1_04781 {ECO:0000313|EMBL:ABM75042.1};
OS Prochlorococcus marinus (strain NATL1A).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC Prochlorococcaceae; Prochlorococcus.
OX NCBI_TaxID=167555 {ECO:0000313|EMBL:ABM75042.1, ECO:0000313|Proteomes:UP000002592};
RN [1] {ECO:0000313|Proteomes:UP000002592}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NATL1A {ECO:0000313|Proteomes:UP000002592};
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
CC -!- FUNCTION: Catalyzes the 2'-O methylation of guanosine at position 18 in
CC tRNA. {ECO:0000256|HAMAP-Rule:MF_02060}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=guanosine(18) in tRNA + S-adenosyl-L-methionine = 2'-O-
CC methylguanosine(18) in tRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:20077, Rhea:RHEA-COMP:10190, Rhea:RHEA-COMP:10192,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74269, ChEBI:CHEBI:74445; EC=2.1.1.34;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02060};
CC -!- SIMILARITY: Belongs to the class IV-like SAM-binding methyltransferase
CC superfamily. RNA methyltransferase TrmH family. {ECO:0000256|HAMAP-
CC Rule:MF_02060}.
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DR EMBL; CP000553; ABM75042.1; -; Genomic_DNA.
DR RefSeq; WP_011823227.1; NC_008819.1.
DR AlphaFoldDB; A2C0N2; -.
DR KEGG; pme:NATL1_04781; -.
DR eggNOG; COG0566; Bacteria.
DR HOGENOM; CLU_021322_4_2_3; -.
DR Proteomes; UP000002592; Chromosome.
DR GO; GO:0141100; F:tRNA (guanine(18)-2'-O)-methyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0002938; P:tRNA guanine ribose methylation; IEA:UniProtKB-UniRule.
DR CDD; cd18092; SpoU-like_TrmH; 1.
DR Gene3D; 3.40.1280.10; -; 1.
DR HAMAP; MF_02060; tRNA_methyltr_TrmH; 1.
DR InterPro; IPR029028; Alpha/beta_knot_MTases.
DR InterPro; IPR022724; rRNA_MeTrfase_SpoU_C.
DR InterPro; IPR001537; SpoU_MeTrfase.
DR InterPro; IPR033671; TrmH.
DR InterPro; IPR029026; tRNA_m1G_MTases_N.
DR PANTHER; PTHR43453; RRNA METHYLASE-LIKE; 1.
DR PANTHER; PTHR43453:SF1; SPOU_METHYLASE DOMAIN-CONTAINING PROTEIN; 1.
DR Pfam; PF12105; SpoU_methylas_C; 1.
DR Pfam; PF00588; SpoU_methylase; 1.
DR SUPFAM; SSF75217; alpha/beta knot; 1.
PE 3: Inferred from homology;
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_02060};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_02060};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_02060};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_02060};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_02060};
KW tRNA-binding {ECO:0000256|ARBA:ARBA00022555, ECO:0000256|HAMAP-
KW Rule:MF_02060}.
FT DOMAIN 22..160
FT /note="tRNA/rRNA methyltransferase SpoU type"
FT /evidence="ECO:0000259|Pfam:PF00588"
FT DOMAIN 165..219
FT /note="RNA methyltransferase SpoU/TrmH type C-terminal"
FT /evidence="ECO:0000259|Pfam:PF12105"
FT BINDING 98
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02060"
FT BINDING 121..125
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02060"
FT BINDING 141
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02060"
FT BINDING 150
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02060"
SQ SEQUENCE 229 AA; 26269 MW; 5452D62BCB29E1DD CRC64;
MPLLPRRFER LKSVLNRRIS DLTVLIENVE KPHNLSAIIR SCDAVGVLEA YAIFNKEKFL
TFNSTAQGSQ KWVKINQYKM TTEAIKVLKE KGFKLYGTNL NPRSIDYRKC NFKGPTAFVL
GAEKWGISEE ASSLMDEHIH IPMRGMVESL NVSVAASALL FEAIRQRQVA NMVPESGEGM
SQETYKEKLF EWAYPEVAQW SKSEGRKYPE LNDKGEIIDN LPRTEKMRY
//
