ID A0A1Z3HRK8_9CYAN Unreviewed; 312 AA.
AC A0A1Z3HRK8;
DT 27-SEP-2017, integrated into UniProtKB/TrEMBL.
DT 27-SEP-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
DE RecName: Full=Release factor glutamine methyltransferase {ECO:0000256|HAMAP-Rule:MF_02126};
DE Short=RF MTase {ECO:0000256|HAMAP-Rule:MF_02126};
DE EC=2.1.1.297 {ECO:0000256|HAMAP-Rule:MF_02126};
DE AltName: Full=N5-glutamine methyltransferase PrmC {ECO:0000256|HAMAP-Rule:MF_02126};
DE AltName: Full=Protein-(glutamine-N5) MTase PrmC {ECO:0000256|HAMAP-Rule:MF_02126};
DE AltName: Full=Protein-glutamine N-methyltransferase PrmC {ECO:0000256|HAMAP-Rule:MF_02126};
GN Name=prmC {ECO:0000256|HAMAP-Rule:MF_02126,
GN ECO:0000313|EMBL:ASC72953.1};
GN ORFNames=XM38_039130 {ECO:0000313|EMBL:ASC72953.1};
OS Halomicronema hongdechloris C2206.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Nodosilineales; Nodosilineaceae;
OC Halomicronema.
OX NCBI_TaxID=1641165 {ECO:0000313|EMBL:ASC72953.1, ECO:0000313|Proteomes:UP000191901};
RN [1] {ECO:0000313|EMBL:ASC72953.1, ECO:0000313|Proteomes:UP000191901}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C2206 {ECO:0000313|EMBL:ASC72953.1,
RC ECO:0000313|Proteomes:UP000191901};
RX PubMed=26514405; DOI=10.1016/j.bbabio.2015.10.009;
RA Li Y., Lin Y., Garvey C.J., Birch D., Corkery R.W., Loughlin P.C.,
RA Scheer H., Willows R.D., Chen M.;
RT "Characterization of red-shifted phycobilisomes isolated from the
RT chlorophyll f-containing cyanobacterium Halomicronema hongdechloris.";
RL Biochim. Biophys. Acta 1857:107-114(2016).
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:0000256|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:0000256|HAMAP-
CC Rule:MF_02126};
CC -!- SIMILARITY: Belongs to the protein N5-glutamine methyltransferase
CC family. PrmC subfamily. {ECO:0000256|HAMAP-Rule:MF_02126}.
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DR EMBL; CP021983; ASC72953.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Z3HRK8; -.
DR STRING; 1641165.XM38_09590; -.
DR KEGG; hhg:XM38_039130; -.
DR Proteomes; UP000191901; Chromosome.
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:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0019538; P:protein metabolic process; IEA:UniProt.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_02126; RF_methyltr_PrmC; 1.
DR InterPro; IPR004556; HemK-like.
DR InterPro; IPR019874; Release_fac_Glu-N5_MeTfrase.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR007848; Small_mtfrase_dom.
DR NCBIfam; TIGR00536; hemK_fam; 1.
DR NCBIfam; TIGR03534; RF_mod_PrmC; 1.
DR PANTHER; PTHR47441; -; 1.
DR PANTHER; PTHR47441:SF3; RELEASE FACTOR GLUTAMINE METHYLTRANSFERASE; 1.
DR Pfam; PF05175; MTS; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_02126}; Reference proteome {ECO:0000313|Proteomes:UP000191901};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_02126};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_02126}.
FT DOMAIN 122..211
FT /note="Methyltransferase small"
FT /evidence="ECO:0000259|Pfam:PF05175"
FT BINDING 138..142
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02126"
FT BINDING 161
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02126"
FT BINDING 190
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02126"
FT BINDING 207..210
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02126"
FT BINDING 207
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02126"
SQ SEQUENCE 312 AA; 34067 MW; 29247754D64365F4 CRC64;
MSRTEGAHTI TGSELWQWWQ MARQQALAQQ IDPAEVDWLV RAISDVDGLS LRLQSFRQRA
AIPCRYGLPA LETLWQRRRQ EHIPVQYLVG QTQWRDFTLQ VSTAVLIPRP ETELLIELVH
AAVAQTPALE AGTWVDLGTG SGAIALGLAK ALPRAHIIAV DCSAEALALA AANAAANGLC
DRIELRQGHW FTPLADLRGQ LAGMVANPPY IPSAMVATLA PEVAVHEPRL ALDGGPDGLT
AIQHLIDAAP DYLQANGLWL IEAMAGQPAT ILQQLQQHGA YCDLQRHRDL AGLERFVQAR
CQGPQGSRRH SQ
//