ID   RLMKL_ALTMD             Reviewed;         699 AA.
AC   B4RZ48; F2G293;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=Ribosomal RNA large subunit methyltransferase K/L {ECO:0000255|HAMAP-Rule:MF_01858};
DE   Includes:
DE     RecName: Full=23S rRNA m2G2445 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01858};
DE              EC=2.1.1.173 {ECO:0000255|HAMAP-Rule:MF_01858};
DE     AltName: Full=rRNA (guanine-N(2)-)-methyltransferase RlmL {ECO:0000255|HAMAP-Rule:MF_01858};
DE   Includes:
DE     RecName: Full=23S rRNA m7G2069 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01858};
DE              EC=2.1.1.264 {ECO:0000255|HAMAP-Rule:MF_01858};
DE     AltName: Full=rRNA (guanine-N(7)-)-methyltransferase RlmK {ECO:0000255|HAMAP-Rule:MF_01858};
GN   Name=rlmL {ECO:0000255|HAMAP-Rule:MF_01858};
GN   OrderedLocusNames=MADE_1010175;
OS   Alteromonas mediterranea (strain DSM 17117 / CIP 110805 / LMG 28347 / Deep
OS   ecotype).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Alteromonadaceae; Alteromonas/Salinimonas group; Alteromonas.
OX   NCBI_TaxID=1774373;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17117 / CIP 110805 / LMG 28347 / Deep ecotype;
RX   PubMed=18670397; DOI=10.1038/ismej.2008.74;
RA   Ivars-Martinez E., Martin-Cuadrado A.-B., D'Auria G., Mira A., Ferriera S.,
RA   Johnson J., Friedman R., Rodriguez-Valera F.;
RT   "Comparative genomics of two ecotypes of the marine planktonic copiotroph
RT   Alteromonas macleodii suggests alternative lifestyles associated with
RT   different kinds of particulate organic matter.";
RL   ISME J. 2:1194-1212(2008).
CC   -!- FUNCTION: Specifically methylates the guanine in position 2445
CC       (m2G2445) and the guanine in position 2069 (m7G2069) of 23S rRNA.
CC       {ECO:0000255|HAMAP-Rule:MF_01858}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine(2445) in 23S rRNA + S-adenosyl-L-methionine = H(+) +
CC         N(2)-methylguanosine(2445) in 23S rRNA + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:42740, Rhea:RHEA-COMP:10215, Rhea:RHEA-COMP:10216,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74269, ChEBI:CHEBI:74481; EC=2.1.1.173;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01858};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine(2069) in 23S rRNA + S-adenosyl-L-methionine = H(+) +
CC         N(2)-methylguanosine(2069) in 23S rRNA + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:43772, Rhea:RHEA-COMP:10688, Rhea:RHEA-COMP:10689,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74269, ChEBI:CHEBI:74481; EC=2.1.1.264;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01858};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01858}.
CC   -!- SIMILARITY: Belongs to the methyltransferase superfamily. RlmKL family.
CC       {ECO:0000255|HAMAP-Rule:MF_01858}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP001103; AEA98173.1; -; Genomic_DNA.
DR   RefSeq; WP_012518498.1; NC_011138.3.
DR   AlphaFoldDB; B4RZ48; -.
DR   SMR; B4RZ48; -.
DR   EnsemblBacteria; AEA98173; AEA98173; MADE_1010175.
DR   KEGG; amc:MADE_1010175; -.
DR   HOGENOM; CLU_014042_2_0_6; -.
DR   OMA; WIRGYEA; -.
DR   Proteomes; UP000001870; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0052915; F:23S rRNA (guanine(2445)-N(2))-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0070043; F:rRNA (guanine-N7-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 2.
DR   HAMAP; MF_01858; 23SrRNA_methyltr_KL; 1.
DR   InterPro; IPR017244; 23SrRNA_methyltr_KL.
DR   InterPro; IPR002052; DNA_methylase_N6_adenine_CS.
DR   InterPro; IPR000241; RNA_methylase_dom.
DR   InterPro; IPR019614; SAM-dep_methyl-trfase.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR004114; THUMP_dom.
DR   Pfam; PF10672; Methyltrans_SAM; 1.
DR   Pfam; PF02926; THUMP; 1.
DR   Pfam; PF01170; UPF0020; 1.
DR   PIRSF; PIRSF037618; RNA_Mtase_bacteria_prd; 1.
DR   SMART; SM00981; THUMP; 1.
DR   SUPFAM; SSF53335; SSF53335; 2.
DR   PROSITE; PS51165; THUMP; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; RNA-binding; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..699
FT                   /note="Ribosomal RNA large subunit methyltransferase K/L"
FT                   /id="PRO_0000366727"
FT   DOMAIN          44..155
FT                   /note="THUMP"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01858"
SQ   SEQUENCE   699 AA;  78010 MW;  458E6107109EAF3F CRC64;
     MNTILVTTSR GLDELLKQEV LTLCPDAQIK QGPGTIQFEG SKEDAYKLCL WSRLANRVIW
     VLASGKAGDA EALYNTAMGI DWQMQMDSRH TLSVQFIGTN FAIKNTQFGA VRVKDAIVDS
     FVEQGLPRPS VERKTPDISV YARLHRDNVI LGIDLAGASL HQRAYRQETG DAPLKEHIAS
     AMLMRSGWTE NTDAPLVDLM CGSGTIAIEA AYIARNIAPG IKRSYWGFTK WLGHEATLWD
     SLLEDAISVQ KPSCGGGIYA GDFSRKMVAI AKANADFAGV FNDISFSQQD ATKSSPPVAT
     PGYVVSNPPY GERLGELTSL IPLFSDWGKR FKEAWKGWHV SLLSSNRDLL RVLKLRATKD
     YAMNNGKLEC RLANYVLDEQ NTVQFSEDAG NHEFANRLKK NLKRMKGWVK SANTNCYRIY
     DADLPDYNVA VDRYGDWLVV QEYAPPKTVS EDKARKRLQE VLLHLPAVTG VSPKNIALKV
     RAQQKGSKQY EKINQSGEMM EVFENGARFL VNLTDYLDTG LFLDHRNTRQ KVKALSQGKD
     VLNLFSYTGS VSVFAAMGGA KSVTTVDMSN TYLDWAKKNV ALNKLSGPHA FIQADCTTWL
     GTHKGKYDLI FIDPPSFSNS KRMQNTWDVQ RDHVKMLTDA KACLKEQGTI IFSNNKRGFK
     LDETAVTALG LQVENITKET IPEDFARKGK IHQCWVLRS