ID   PRMC_CHLTE              Reviewed;         294 AA.
AC   Q8KCD5;
DT   14-DEC-2011, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=Release factor glutamine methyltransferase {ECO:0000255|HAMAP-Rule:MF_02126};
DE            Short=RF MTase {ECO:0000255|HAMAP-Rule:MF_02126};
DE            EC=2.1.1.297 {ECO:0000255|HAMAP-Rule:MF_02126};
DE   AltName: Full=N5-glutamine methyltransferase PrmC {ECO:0000255|HAMAP-Rule:MF_02126};
DE   AltName: Full=Protein-(glutamine-N5) MTase PrmC {ECO:0000255|HAMAP-Rule:MF_02126};
DE   AltName: Full=Protein-glutamine N-methyltransferase PrmC {ECO:0000255|HAMAP-Rule:MF_02126};
GN   Name=prmC {ECO:0000255|HAMAP-Rule:MF_02126}; Synonyms=hemK;
GN   OrderedLocusNames=CT1487;
OS   Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS)
OS   (Chlorobium tepidum).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae; Chlorobaculum.
OX   NCBI_TaxID=194439;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49652 / DSM 12025 / NBRC 103806 / TLS;
RX   PubMed=12093901; DOI=10.1073/pnas.132181499;
RA   Eisen J.A., Nelson K.E., Paulsen I.T., Heidelberg J.F., Wu M., Dodson R.J.,
RA   DeBoy R.T., Gwinn M.L., Nelson W.C., Haft D.H., Hickey E.K., Peterson J.D.,
RA   Durkin A.S., Kolonay J.F., Yang F., Holt I.E., Umayam L.A., Mason T.M.,
RA   Brenner M., Shea T.P., Parksey D.S., Nierman W.C., Feldblyum T.V.,
RA   Hansen C.L., Craven M.B., Radune D., Vamathevan J.J., Khouri H.M.,
RA   White O., Gruber T.M., Ketchum K.A., Venter J.C., Tettelin H., Bryant D.A.,
RA   Fraser C.M.;
RT   "The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic,
RT   anaerobic, green-sulfur bacterium.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:9509-9514(2002).
CC   -!- FUNCTION: Methylates the class 1 translation termination release
CC       factors RF1/PrfA and RF2/PrfB on the glutamine residue of the
CC       universally conserved GGQ motif. {ECO:0000255|HAMAP-Rule:MF_02126}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-glutaminyl-[peptide chain release factor] + S-adenosyl-L-
CC         methionine = H(+) + N(5)-methyl-L-glutaminyl-[peptide chain release
CC         factor] + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:42896, Rhea:RHEA-
CC         COMP:10271, Rhea:RHEA-COMP:10272, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30011, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:61891; EC=2.1.1.297; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_02126};
CC   -!- SIMILARITY: Belongs to the protein N5-glutamine methyltransferase
CC       family. PrmC subfamily. {ECO:0000255|HAMAP-Rule:MF_02126}.
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DR   EMBL; AE006470; AAM72714.1; -; Genomic_DNA.
DR   RefSeq; NP_662372.1; NC_002932.3.
DR   RefSeq; WP_010933153.1; NC_002932.3.
DR   AlphaFoldDB; Q8KCD5; -.
DR   SMR; Q8KCD5; -.
DR   STRING; 194439.CT1487; -.
DR   EnsemblBacteria; AAM72714; AAM72714; CT1487.
DR   KEGG; cte:CT1487; -.
DR   PATRIC; fig|194439.7.peg.1349; -.
DR   eggNOG; COG2890; Bacteria.
DR   HOGENOM; CLU_018398_3_1_10; -.
DR   OMA; FDARYWE; -.
DR   OrthoDB; 1816476at2; -.
DR   Proteomes; UP000001007; Chromosome.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR   GO; GO:0102559; F:protein-(glutamine-N5) methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0036009; F:protein-glutamine N-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0018364; P:peptidyl-glutamine methylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_02126; RF_methyltr_PrmC; 1.
DR   InterPro; IPR002052; DNA_methylase_N6_adenine_CS.
DR   InterPro; IPR004556; HemK-like.
DR   InterPro; IPR040758; PrmC_N.
DR   InterPro; IPR019874; Release_fac_Glu-N5_MeTfrase.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR007848; Small_mtfrase_dom.
DR   Pfam; PF05175; MTS; 1.
DR   Pfam; PF17827; PrmC_N; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR00536; hemK_fam; 1.
DR   TIGRFAMs; TIGR03534; RF_mod_PrmC; 1.
PE   3: Inferred from homology;
KW   Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..294
FT                   /note="Release factor glutamine methyltransferase"
FT                   /id="PRO_0000414510"
FT   BINDING         131..135
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02126"
FT   BINDING         154
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02126"
FT   BINDING         202..205
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02126"
FT   BINDING         202
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02126"
SQ   SEQUENCE   294 AA;  32308 MW;  B361FBBE855DACA6 CRC64;
     MPEEKVWSVV ELLKTTIAFF AEKKIDEPRL SAELLLGHVL GLQRLQLYLD HERPLTLKEL
     EAFRAACRER LQGRPVQYIA GEAFFYGYQF FVDERVLIPR PETELVLEHA MERLAASGLD
     SADSPSILDV GTGSGCIAIT LALRLPGARV TAADVSADAL DVARRNADAH GVSERIRFVE
     ADALSASFAD AVGGPFDLLV SNPPYIPEAE WATLQEEVRR YEPRLALVAP TGFEYYQSIA
     VAAPSLLRKG GVLCFELHAD GAAEVRNLLG SSFADVQVMQ DYNKLDRGLS CMAQ