ID   PIMT_MARSD              Reviewed;         214 AA.
AC   C6BTT9;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-SEP-2009, sequence version 1.
DT   03-AUG-2022, entry version 59.
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=Desal_1807;
OS   Maridesulfovibrio salexigens (strain ATCC 14822 / DSM 2638 / NCIMB 8403 /
OS   VKM B-1763) (Desulfovibrio salexigens).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Maridesulfovibrio.
OX   NCBI_TaxID=526222;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14822 / DSM 2638 / NCIMB 8403 / VKM B-1763;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Munk A.C., Brettin T., Detter J.C., Han C.,
RA   Tapia R., Larimer F., Land M., Hauser L., Kyrpides N., Anderson I.,
RA   Wall J.D., Arkin A.P., Dehal P., Chivian D., Giles B., Hazen T.C.;
RT   "Complete sequence of Desulfovibrio salexigens DSM 2638.";
RL   Submitted (JUN-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001649; ACS79869.1; -; Genomic_DNA.
DR   RefSeq; WP_015851685.1; NC_012881.1.
DR   AlphaFoldDB; C6BTT9; -.
DR   SMR; C6BTT9; -.
DR   STRING; 526222.Desal_1807; -.
DR   EnsemblBacteria; ACS79869; ACS79869; Desal_1807.
DR   KEGG; dsa:Desal_1807; -.
DR   eggNOG; COG2518; Bacteria.
DR   HOGENOM; CLU_055432_2_0_7; -.
DR   OMA; TISAIHM; -.
DR   OrthoDB; 1948290at2; -.
DR   Proteomes; UP000002601; 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..214
FT                   /note="Protein-L-isoaspartate O-methyltransferase"
FT                   /id="PRO_1000202661"
FT   ACT_SITE        63
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00090"
SQ   SEQUENCE   214 AA;  23678 MW;  30C1A15DC341A0E4 CRC64;
     MRIDPKRSRL KMVEEQIAAR GVADKNVLDA MRRVPRHMFV QDALASRAYS DSALPIGEGQ
     TISQPYIVAV MSELLQIESG HKVLEIGTGS GYQAAVLAEM GADVFSVERI RKLFISARKL
     LFDMRYFNIQ LKLDDGTMGW PENAPYDRII VTAGGPEIPQ YLIDQLADPG ILVIPVGGQR
     RVQRLMLVTK TDGKIETTDM GGCAFVDLVG KQGW