ID A0A2R4T2X3_9ACTN Unreviewed; 292 AA.
AC A0A2R4T2X3;
DT 20-JUN-2018, integrated into UniProtKB/TrEMBL.
DT 20-JUN-2018, sequence version 1.
DT 24-JAN-2024, entry version 17.
DE RecName: Full=Ribosomal RNA small subunit methyltransferase I {ECO:0000256|HAMAP-Rule:MF_01877};
DE EC=2.1.1.198 {ECO:0000256|HAMAP-Rule:MF_01877};
DE AltName: Full=16S rRNA 2'-O-ribose C1402 methyltransferase {ECO:0000256|HAMAP-Rule:MF_01877};
DE AltName: Full=rRNA (cytidine-2'-O-)-methyltransferase RsmI {ECO:0000256|HAMAP-Rule:MF_01877};
GN Name=rsmI {ECO:0000256|HAMAP-Rule:MF_01877,
GN ECO:0000313|EMBL:AVZ73499.1};
GN ORFNames=SLUN_16245 {ECO:0000313|EMBL:AVZ73499.1};
OS Streptomyces lunaelactis.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1535768 {ECO:0000313|EMBL:AVZ73499.1, ECO:0000313|Proteomes:UP000244201};
RN [1] {ECO:0000313|EMBL:AVZ73499.1, ECO:0000313|Proteomes:UP000244201}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MM109 {ECO:0000313|EMBL:AVZ73499.1,
RC ECO:0000313|Proteomes:UP000244201};
RA Naome A., Martinet L., Maciejewska M., Anderssen S., Adam D., Tenconi E.,
RA Deflandre B., Arguelles-Arias A., Calusinska M., Copieters W., Karim L.,
RA Hanikenne M., Baurain D., van Wezel G., Smargiasso N., de Pauw E.,
RA Delfosse P., Rigali S.;
RT "Complete genome sequence of Streptomyces lunaelactis MM109T, a Ferroverdin
RT A producer isolated from cave moonmilk deposits.";
RL Submitted (JAN-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the 2'-O-methylation of the ribose of cytidine 1402
CC (C1402) in 16S rRNA. {ECO:0000256|HAMAP-Rule:MF_01877}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(1402) in 16S rRNA + S-adenosyl-L-methionine = 2'-O-
CC methylcytidine(1402) in 16S rRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42924, Rhea:RHEA-COMP:10285, Rhea:RHEA-COMP:10286,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74495, ChEBI:CHEBI:82748; EC=2.1.1.198;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01877};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01877}.
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily. RsmI family.
CC {ECO:0000256|HAMAP-Rule:MF_01877}.
CC -!- SIMILARITY: Belongs to the precorrin methyltransferase family.
CC {ECO:0000256|ARBA:ARBA00005879}.
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DR EMBL; CP026304; AVZ73499.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2R4T2X3; -.
DR KEGG; slk:SLUN_16245; -.
DR OrthoDB; 9809084at2; -.
DR Proteomes; UP000244201; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0070677; F:rRNA (cytosine-2'-O-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR CDD; cd11648; RsmI; 1.
DR HAMAP; MF_01877; 16SrRNA_methyltr_I; 1.
DR InterPro; IPR000878; 4pyrrol_Mease.
DR InterPro; IPR035996; 4pyrrol_Methylase_sf.
DR InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR InterPro; IPR008189; rRNA_ssu_MeTfrase_I.
DR NCBIfam; TIGR00096; 16S rRNA (cytidine(1402)-2'-O)-methyltransferase; 1.
DR PANTHER; PTHR46111; RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE I; 1.
DR PANTHER; PTHR46111:SF1; RIBOSOMAL RNA SMALL SUBUNIT METHYLTRANSFERASE I; 1.
DR Pfam; PF00590; TP_methylase; 1.
DR PIRSF; PIRSF005917; MTase_YraL; 1.
DR SUPFAM; SSF53790; Tetrapyrrole methylase; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01877};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_01877}; Reference proteome {ECO:0000313|Proteomes:UP000244201};
KW rRNA processing {ECO:0000256|ARBA:ARBA00022552, ECO:0000256|HAMAP-
KW Rule:MF_01877};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_01877};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01877}.
FT DOMAIN 4..207
FT /note="Tetrapyrrole methylase"
FT /evidence="ECO:0000259|Pfam:PF00590"
SQ SEQUENCE 292 AA; 30992 MW; 8DA5FD8856DE8C4D CRC64;
MTGTLVLAGT PIGDVADAPP RLAAELERAD IVAAEDTRRL RRLTQALGVH TQGRVVSYFE
GNESARTPEL VEALAGGARV LLVTDAGMPS VSDPGYRLVA AAVEKDIKVT AVPGPSAVLT
ALALSGLPVD RFCFEGFLPR KAGERLGRLR EVEGERRTLV YFEAPHRLDD TLAAMAEVFG
AERRAAVCRE LTKTYEEVKR GGLGELAAWA AEGVRGEITV VVEGAPEADP GDLDAAELVR
RVRVREEAGE RRKEAIVAVA AEAGLPKREV FDAVVAAKNA DRPVPADGKG LS
//
