ID L9X5E6_9EURY Unreviewed; 221 AA.
AC L9X5E6;
DT 03-APR-2013, integrated into UniProtKB/TrEMBL.
DT 03-APR-2013, sequence version 1.
DT 27-MAR-2024, entry version 42.
DE RecName: Full=Protein-L-isoaspartate O-methyltransferase {ECO:0000256|HAMAP-Rule:MF_00090};
DE EC=2.1.1.77 {ECO:0000256|HAMAP-Rule:MF_00090};
DE AltName: Full=L-isoaspartyl protein carboxyl methyltransferase {ECO:0000256|HAMAP-Rule:MF_00090};
DE AltName: Full=Protein L-isoaspartyl methyltransferase {ECO:0000256|HAMAP-Rule:MF_00090};
DE AltName: Full=Protein-beta-aspartate methyltransferase {ECO:0000256|HAMAP-Rule:MF_00090};
DE Short=PIMT {ECO:0000256|HAMAP-Rule:MF_00090};
GN Name=pcm {ECO:0000256|HAMAP-Rule:MF_00090};
GN ORFNames=C493_09940 {ECO:0000313|EMBL:ELY56686.1};
OS Natronolimnohabitans innermongolicus JCM 12255.
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Natrialbales;
OC Natrialbaceae; Natronolimnohabitans.
OX NCBI_TaxID=1227499 {ECO:0000313|EMBL:ELY56686.1, ECO:0000313|Proteomes:UP000011602};
RN [1] {ECO:0000313|EMBL:ELY56686.1, ECO:0000313|Proteomes:UP000011602}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 12255 {ECO:0000313|EMBL:ELY56686.1,
RC ECO:0000313|Proteomes:UP000011602};
RX PubMed=25393412; DOI=10.1371/journal.pgen.1004784;
RA Becker E.A., Seitzer P.M., Tritt A., Larsen D., Krusor M., Yao A.I., Wu D.,
RA Madern D., Eisen J.A., Darling A.E., Facciotti M.T.;
RT "Phylogenetically driven sequencing of extremely halophilic archaea reveals
RT strategies for static and dynamic osmo-response.";
RL PLoS Genet. 10:E1004784-E1004784(2014).
CC -!- FUNCTION: Catalyzes the methyl esterification of L-isoaspartyl residues
CC in peptides and proteins that result from spontaneous decomposition of
CC normal L-aspartyl and L-asparaginyl residues. It plays a role in the
CC repair and/or degradation of damaged proteins.
CC {ECO:0000256|ARBA:ARBA00025330, ECO:0000256|HAMAP-Rule:MF_00090}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[protein]-L-isoaspartate + S-adenosyl-L-methionine =
CC [protein]-L-isoaspartate alpha-methyl ester + S-adenosyl-L-
CC homocysteine; Xref=Rhea:RHEA:12705, Rhea:RHEA-COMP:12143, Rhea:RHEA-
CC COMP:12144, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:90596,
CC ChEBI:CHEBI:90598; EC=2.1.1.77;
CC Evidence={ECO:0000256|ARBA:ARBA00029295, ECO:0000256|HAMAP-
CC Rule:MF_00090};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00090}.
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily. L-
CC isoaspartyl/D-aspartyl protein methyltransferase family.
CC {ECO:0000256|ARBA:ARBA00005369, ECO:0000256|HAMAP-Rule:MF_00090}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ELY56686.1}.
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DR EMBL; AOHZ01000044; ELY56686.1; -; Genomic_DNA.
DR RefSeq; WP_007259273.1; NZ_AOHZ01000044.1.
DR AlphaFoldDB; L9X5E6; -.
DR STRING; 1227499.C493_09940; -.
DR PATRIC; fig|1227499.3.peg.2014; -.
DR eggNOG; arCOG00976; Archaea.
DR OrthoDB; 33618at2157; -.
DR Proteomes; UP000011602; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004719; F:protein-L-isoaspartate (D-aspartate) O-methyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0044249; P:cellular biosynthetic process; IEA:UniProt.
DR GO; GO:0034641; P:cellular nitrogen compound metabolic process; IEA:UniProt.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:1901576; P:organic substance biosynthetic process; IEA:UniProt.
DR GO; GO:0036211; P:protein modification process; IEA:UniProtKB-UniRule.
DR GO; GO:0030091; P:protein repair; IEA:UniProtKB-UniRule.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_00090; PIMT; 1.
DR InterPro; IPR000682; PCMT.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR NCBIfam; TIGR00080; pimt; 1.
DR PANTHER; PTHR11579; PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE; 1.
DR PANTHER; PTHR11579:SF0; PROTEIN-L-ISOASPARTATE(D-ASPARTATE) O-METHYLTRANSFERASE; 1.
DR Pfam; PF01135; PCMT; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00090};
KW Methyltransferase {ECO:0000256|HAMAP-Rule:MF_00090,
KW ECO:0000313|EMBL:ELY56686.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000011602};
KW S-adenosyl-L-methionine {ECO:0000256|HAMAP-Rule:MF_00090};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00090, ECO:0000313|EMBL:ELY56686.1}.
FT ACT_SITE 73
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00090"
SQ SEQUENCE 221 AA; 24059 MW; 00842EBF9E49FF78 CRC64;
MFDRFRDDDS GSDPDDFEAA RERMVQGLSA RIDDERVLEA MAAVPRHEFV PPDRRRSAYE
DRPLPIGDGQ TISAPHMVAI MGDELSLEPG DEVLEVGTGC GYHAAVTAEL VGAENVYTVE
YGEALAEQAR EQLAAVGYED VAVRTGDGRE GWPEHAPYDA AYITCAAAEF PDPVVEQIRP
GGTLLVPIGT GFQTLVEATK REDGRLERTE HGGVRFVAIR G
//
