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RLMH_POLNS
ID   RLMH_POLNS              Reviewed;         135 AA.
AC   B1XVK0;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 68.
DE   RecName: Full=Ribosomal RNA large subunit methyltransferase H {ECO:0000255|HAMAP-Rule:MF_00658};
DE            EC=2.1.1.177 {ECO:0000255|HAMAP-Rule:MF_00658};
DE   AltName: Full=23S rRNA (pseudouridine1915-N3)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_00658};
DE   AltName: Full=23S rRNA m3Psi1915 methyltransferase {ECO:0000255|HAMAP-Rule:MF_00658};
DE   AltName: Full=rRNA (pseudouridine-N3-)-methyltransferase RlmH {ECO:0000255|HAMAP-Rule:MF_00658};
GN   Name=rlmH {ECO:0000255|HAMAP-Rule:MF_00658}; OrderedLocusNames=Pnec_1242;
OS   Polynucleobacter necessarius subsp. necessarius (strain STIR1).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Polynucleobacter.
OX   NCBI_TaxID=452638;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=STIR1;
RX   PubMed=24167248; DOI=10.1073/pnas.1316687110;
RA   Boscaro V., Felletti M., Vannini C., Ackerman M.S., Chain P.S.,
RA   Malfatti S., Vergez L.M., Shin M., Doak T.G., Lynch M., Petroni G.;
RT   "Polynucleobacter necessarius, a model for genome reduction in both free-
RT   living and symbiotic bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 110:18590-18595(2013).
CC   -!- FUNCTION: Specifically methylates the pseudouridine at position 1915
CC       (m3Psi1915) in 23S rRNA. {ECO:0000255|HAMAP-Rule:MF_00658}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=pseudouridine(1915) in 23S rRNA + S-adenosyl-L-methionine =
CC         H(+) + N(3)-methylpseudouridine(1915) in 23S rRNA + S-adenosyl-L-
CC         homocysteine; Xref=Rhea:RHEA:42752, Rhea:RHEA-COMP:10221, Rhea:RHEA-
CC         COMP:10222, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:65314, ChEBI:CHEBI:74486; EC=2.1.1.177;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00658};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00658}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00658}.
CC   -!- SIMILARITY: Belongs to the RNA methyltransferase RlmH family.
CC       {ECO:0000255|HAMAP-Rule:MF_00658}.
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DR   EMBL; CP001010; ACB44377.1; -; Genomic_DNA.
DR   RefSeq; WP_012358140.1; NC_010531.1.
DR   AlphaFoldDB; B1XVK0; -.
DR   SMR; B1XVK0; -.
DR   STRING; 452638.Pnec_1242; -.
DR   EnsemblBacteria; ACB44377; ACB44377; Pnec_1242.
DR   KEGG; pne:Pnec_1242; -.
DR   eggNOG; COG1576; Bacteria.
DR   HOGENOM; CLU_100552_1_0_4; -.
DR   OMA; ARADQRW; -.
DR   OrthoDB; 1783583at2; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0070038; F:rRNA (pseudouridine-N3-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd18081; RlmH-like; 1.
DR   Gene3D; 3.40.1280.10; -; 1.
DR   HAMAP; MF_00658; 23SrRNA_methyltr_H; 1.
DR   InterPro; IPR029028; Alpha/beta_knot_MTases.
DR   InterPro; IPR003742; RlmH-like.
DR   InterPro; IPR029026; tRNA_m1G_MTases_N.
DR   PANTHER; PTHR33603; PTHR33603; 1.
DR   Pfam; PF02590; SPOUT_MTase; 1.
DR   PIRSF; PIRSF004505; MT_bac; 1.
DR   SUPFAM; SSF75217; SSF75217; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; rRNA processing; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..135
FT                   /note="Ribosomal RNA large subunit methyltransferase H"
FT                   /id="PRO_0000366635"
FT   BINDING         52
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00658"
FT   BINDING         83
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00658"
FT   BINDING         102..107
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00658"
SQ   SEQUENCE   135 AA;  14982 MW;  2B040AB1CA8FB6CA CRC64;
     MRLTIVSVGH KMPDWVATAT IEIKEIKPDL TLAKEAVKIA AAIPKGSRVI ALDERGKDQT
     TQNLATQLAS WRQEGFDITF LIGGADGLDP SLKTTAQAIW RLSSLTLPHA MARVLLVEQL
     YRAWTILQGH PYHRE
 
 
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