ID   PIMT_DINSH              Reviewed;         216 AA.
AC   A8LQK6;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   03-AUG-2022, entry version 78.
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=Dshi_2137;
OS   Dinoroseobacter shibae (strain DSM 16493 / NCIMB 14021 / DFL 12).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Roseobacteraceae; Dinoroseobacter.
OX   NCBI_TaxID=398580;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 16493 / NCIMB 14021 / DFL 12;
RX   PubMed=19741735; DOI=10.1038/ismej.2009.94;
RA   Wagner-Dobler I., Ballhausen B., Berger M., Brinkhoff T., Buchholz I.,
RA   Bunk B., Cypionka H., Daniel R., Drepper T., Gerdts G., Hahnke S., Han C.,
RA   Jahn D., Kalhoefer D., Kiss H., Klenk H.P., Kyrpides N., Liebl W.,
RA   Liesegang H., Meincke L., Pati A., Petersen J., Piekarski T.,
RA   Pommerenke C., Pradella S., Pukall R., Rabus R., Stackebrandt E., Thole S.,
RA   Thompson L., Tielen P., Tomasch J., von Jan M., Wanphrut N., Wichels A.,
RA   Zech H., Simon M.;
RT   "The complete genome sequence of the algal symbiont Dinoroseobacter shibae:
RT   a hitchhiker's guide to life in the sea.";
RL   ISME J. 4:61-77(2010).
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; CP000830; ABV93873.1; -; Genomic_DNA.
DR   RefSeq; WP_012178805.1; NC_009952.1.
DR   AlphaFoldDB; A8LQK6; -.
DR   SMR; A8LQK6; -.
DR   STRING; 398580.Dshi_2137; -.
DR   EnsemblBacteria; ABV93873; ABV93873; Dshi_2137.
DR   KEGG; dsh:Dshi_2137; -.
DR   eggNOG; COG2518; Bacteria.
DR   HOGENOM; CLU_055432_2_0_5; -.
DR   OMA; HYGDGML; -.
DR   OrthoDB; 1948290at2; -.
DR   Proteomes; UP000006833; 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..216
FT                   /note="Protein-L-isoaspartate O-methyltransferase"
FT                   /id="PRO_0000351855"
FT   ACT_SITE        61
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00090"
SQ   SEQUENCE   216 AA;  23399 MW;  9F0B3C83F2196249 CRC64;
     MSPSPEQVMQ FLYALRSRGV RDRAVLTAME KIDRGLFVEG VFSGRAYEDV PLPIACGQTI
     SQPSIVGLMT QAAEIGPRHH VLEVGTGAGY QAAILSQLAR RVWTVDRHRR LTRAAEARFK
     ALDLTNVTVL TGDGSFGLPD QAPFDRILVT AAAEDPPGPL LAQLREGGIM VVPVGQSDAV
     QSLIKVTRTE SGFDYEEMRS VRFVPLVEGI APENSA