ID   PIMT_BRASB              Reviewed;         215 AA.
AC   A5EJV5;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Protein-L-isoaspartate O-methyltransferase {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 {ECO:0000255|HAMAP-Rule:MF_00090};
DE   AltName: Full=Protein L-isoaspartyl methyltransferase {ECO:0000255|HAMAP-Rule:MF_00090};
DE   AltName: Full=Protein-beta-aspartate methyltransferase {ECO:0000255|HAMAP-Rule:MF_00090};
DE            Short=PIMT {ECO:0000255|HAMAP-Rule:MF_00090};
GN   Name=pcm {ECO:0000255|HAMAP-Rule:MF_00090}; OrderedLocusNames=BBta_4410;
OS   Bradyrhizobium sp. (strain BTAi1 / ATCC BAA-1182).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Bradyrhizobium; unclassified Bradyrhizobium.
OX   NCBI_TaxID=288000;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BTAi1 / ATCC BAA-1182;
RX   PubMed=17540897; DOI=10.1126/science.1139548;
RA   Giraud E., Moulin L., Vallenet D., Barbe V., Cytryn E., Avarre J.-C.,
RA   Jaubert M., Simon D., Cartieaux F., Prin Y., Bena G., Hannibal L.,
RA   Fardoux J., Kojadinovic M., Vuillet L., Lajus A., Cruveiller S., Rouy Z.,
RA   Mangenot S., Segurens B., Dossat C., Franck W.L., Chang W.-S., Saunders E.,
RA   Bruce D., Richardson P., Normand P., Dreyfus B., Pignol D., Stacey G.,
RA   Emerich D., Vermeglio A., Medigue C., Sadowsky M.;
RT   "Legumes symbioses: absence of nod genes in photosynthetic bradyrhizobia.";
RL   Science 316:1307-1312(2007).
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; CP000494; ABQ36449.1; -; Genomic_DNA.
DR   AlphaFoldDB; A5EJV5; -.
DR   SMR; A5EJV5; -.
DR   STRING; 288000.BBta_4410; -.
DR   EnsemblBacteria; ABQ36449; ABQ36449; BBta_4410.
DR   KEGG; bbt:BBta_4410; -.
DR   eggNOG; COG2518; Bacteria.
DR   HOGENOM; CLU_055432_2_0_5; -.
DR   OMA; TISAIHM; -.
DR   Proteomes; UP000000246; 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.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..215
FT                   /note="Protein-L-isoaspartate O-methyltransferase"
FT                   /id="PRO_0000351822"
FT   ACT_SITE        62
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00090"
SQ   SEQUENCE   215 AA;  23939 MW;  375EF0F0CB43A60B CRC64;
     MPPTAPPEKM MFQLTLRRRG ISDQAVLRTM EEVPREEFVL PADRAEAYRD SAMAIACGQT
     ISQPFVVAYM TEQLKLQKNH RVLEIGTGSG YQAAILSRLC ANVLTVERFR TLADKARERL
     EKLNCFNVEV MLGDGYALPP GAGQFDRIIV TAAMDQIPQS LLDRLEPDGI LIAPVGPQHG
     VQTLVRVTRT GDHFDRKELV DVRFVPAIPG IAREL