ID   PIMT2_POLSJ             Reviewed;         211 AA.
AC   Q123X2;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Protein-L-isoaspartate O-methyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00090};
DE            EC=2.1.1.77 {ECO:0000255|HAMAP-Rule:MF_00090};
DE   AltName: Full=L-isoaspartyl protein carboxyl methyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00090};
DE   AltName: Full=Protein L-isoaspartyl methyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00090};
DE   AltName: Full=Protein-beta-aspartate methyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00090};
DE            Short=PIMT 2 {ECO:0000255|HAMAP-Rule:MF_00090};
GN   Name=pcm2 {ECO:0000255|HAMAP-Rule:MF_00090}; OrderedLocusNames=Bpro_4278;
OS   Polaromonas sp. (strain JS666 / ATCC BAA-500).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas; unclassified Polaromonas.
OX   NCBI_TaxID=296591;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JS666 / ATCC BAA-500;
RX   PubMed=18723656; DOI=10.1128/aem.00197-08;
RA   Mattes T.E., Alexander A.K., Richardson P.M., Munk A.C., Han C.S.,
RA   Stothard P., Coleman N.V.;
RT   "The genome of Polaromonas sp. strain JS666: insights into the evolution of
RT   a hydrocarbon- and xenobiotic-degrading bacterium, and features of
RT   relevance to biotechnology.";
RL   Appl. Environ. Microbiol. 74:6405-6416(2008).
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. {ECO:0000255|HAMAP-
CC       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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00090};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00090}.
CC   -!- SIMILARITY: Belongs to the methyltransferase superfamily. L-
CC       isoaspartyl/D-aspartyl protein methyltransferase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00090}.
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DR   EMBL; CP000316; ABE46170.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q123X2; -.
DR   SMR; Q123X2; -.
DR   STRING; 296591.Bpro_4278; -.
DR   EnsemblBacteria; ABE46170; ABE46170; Bpro_4278.
DR   KEGG; pol:Bpro_4278; -.
DR   eggNOG; COG2518; Bacteria.
DR   HOGENOM; CLU_055432_2_0_4; -.
DR   OMA; TISAIHM; -.
DR   Proteomes; UP000001983; Chromosome.
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:0030091; P:protein repair; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_00090; PIMT; 1.
DR   InterPro; IPR000682; PCMT.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   PANTHER; PTHR11579; PTHR11579; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR00080; pimt; 1.
DR   PROSITE; PS01279; PCMT; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..211
FT                   /note="Protein-L-isoaspartate O-methyltransferase 2"
FT                   /id="PRO_0000351902"
FT   ACT_SITE        61
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00090"
SQ   SEQUENCE   211 AA;  23226 MW;  A050B1BEC89513B0 CRC64;
     MMEEITALVR ETRTETGKPA LDERVMAVMG KVPRHEFVPA DQLPRAYQNR PLPIGHGQTI
     SQPYIVALMT DLARVEPGHK VLEVGTGSGY QAAVMAHLAR AVYTIEIIEP LGLQARQRLQ
     KLGYDNVQVR LGDGYHGWEE HAPYDAILVT AAASHIPPPL IRQLKAGGRM VIPVGAAFMV
     QQLMLVEKNR DGTVSTRQIL PVAFVPLTGQ R