ID Q6N5Y0_RHOPA Unreviewed; 217 AA.
AC Q6N5Y0;
DT 05-JUL-2004, integrated into UniProtKB/TrEMBL.
DT 05-JUL-2004, sequence version 1.
DT 27-MAR-2024, entry version 105.
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=pimt2 {ECO:0000313|EMBL:CAE28280.1};
GN Synonyms=pcm {ECO:0000256|HAMAP-Rule:MF_00090};
GN OrderedLocusNames=RPA2838 {ECO:0000313|EMBL:CAE28280.1};
OS Rhodopseudomonas palustris (strain ATCC BAA-98 / CGA009).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Rhodopseudomonas.
OX NCBI_TaxID=258594 {ECO:0000313|EMBL:CAE28280.1, ECO:0000313|Proteomes:UP000001426};
RN [1] {ECO:0000313|EMBL:CAE28280.1, ECO:0000313|Proteomes:UP000001426}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-98 / CGA009 {ECO:0000313|Proteomes:UP000001426};
RX PubMed=14704707; DOI=10.1038/nbt923;
RA Larimer F.W., Chain P., Hauser L., Lamerdin J., Malfatti S., Do L.,
RA Land M.L., Pelletier D.A., Beatty T.J., Lang A.S., Tabita F.R.,
RA Gibson J.L., Hanson T.E., Torres y Torres J., Peres C., Harrison F.H.,
RA Gibson J., Harwood C.S.;
RT "Complete genome sequence of the metabolically versatile photosynthetic
RT bacterium Rhodopseudomonas palustris.";
RL Nat. Biotechnol. 22:55-61(2004).
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:0000256|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: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}.
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DR EMBL; BX572602; CAE28280.1; -; Genomic_DNA.
DR RefSeq; WP_011158389.1; NZ_CP116810.1.
DR AlphaFoldDB; Q6N5Y0; -.
DR STRING; 258594.RPA2838; -.
DR GeneID; 66893916; -.
DR eggNOG; COG2518; Bacteria.
DR HOGENOM; CLU_055432_2_0_5; -.
DR PhylomeDB; Q6N5Y0; -.
DR Proteomes; UP000001426; 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:0032259; P:methylation; IEA:UniProtKB-KW.
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:CAE28280.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000001426};
KW S-adenosyl-L-methionine {ECO:0000256|HAMAP-Rule:MF_00090};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00090, ECO:0000313|EMBL:CAE28280.1}.
FT ACT_SITE 64
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00090"
SQ SEQUENCE 217 AA; 23904 MW; B2EE2EBC876CBDC9 CRC64;
MPSPAAPPPE KMMFQLSLRR RGISDQAVLR TMEAVPRDQF VDPGYRDGAW RDTALPIACG
QTISQPFVVA FMTEQLELRP RDRVLEIGTG SGYHAAVLSR LAADVLSFER FKTLADRARK
RLAELGCRNV EVVFGDGFDL PETAGTFDRI LITAAVPELP ARLLERLDPG GVLIAPVGPP
NGRQTLLRVR RTPNGDEHKA LGEVRFVPAL RGIAREL
//
