ID I3Y6C5_THIV6 Unreviewed; 222 AA.
AC I3Y6C5;
DT 05-SEP-2012, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2012, sequence version 1.
DT 27-MAR-2024, entry version 52.
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=pcm {ECO:0000256|HAMAP-Rule:MF_00090};
GN OrderedLocusNames=Thivi_0482 {ECO:0000313|EMBL:AFL72543.1};
OS Thiocystis violascens (strain ATCC 17096 / DSM 198 / 6111) (Chromatium
OS violascens).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC Thiocystis.
OX NCBI_TaxID=765911 {ECO:0000313|EMBL:AFL72543.1, ECO:0000313|Proteomes:UP000006062};
RN [1] {ECO:0000313|EMBL:AFL72543.1, ECO:0000313|Proteomes:UP000006062}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17096 / DSM 198 / 6111
RC {ECO:0000313|Proteomes:UP000006062};
RG US DOE Joint Genome Institute;
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Ovchinnikova G., Teshima H., Detter J.C., Han C., Tapia R.,
RA Land M., Hauser L., Kyrpides N., Ivanova N., Pagani I., Vogl K., Liu Z.,
RA Frigaard N.-U., Bryant D., Woyke T.;
RT "Complete sequence of Thiocystis violascens DSM 198.";
RL Submitted (JUN-2012) 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: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; CP003154; AFL72543.1; -; Genomic_DNA.
DR AlphaFoldDB; I3Y6C5; -.
DR STRING; 765911.Thivi_0482; -.
DR KEGG; tvi:Thivi_0482; -.
DR eggNOG; COG2518; Bacteria.
DR HOGENOM; CLU_055432_2_0_6; -.
DR Proteomes; UP000006062; 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.
DR PROSITE; PS01279; PCMT; 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:AFL72543.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000006062};
KW S-adenosyl-L-methionine {ECO:0000256|HAMAP-Rule:MF_00090};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00090, ECO:0000313|EMBL:AFL72543.1}.
FT ACT_SITE 66
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00090"
SQ SEQUENCE 222 AA; 24419 MW; 97A033A08EDB521A CRC64;
MDPGIGMTSL RTRKRLILRL REAGIHAPEV LTAMRDLPRH LFVDEALASR AYEDSALPIG
HGQTISQPYT VARMTQSLLE RVRPDTVLEI GTGSGFQTAV LASMVRRVYS VERVRELLDR
ARQRLSALKQ RNIRFLLGDG SKGWLDYAPY DGILVTAAPR GVPRLLAEQL APGGVMVLPI
GDAARQMLVR VTRVGDGFEQ EMLEAVSFVP LLMGISDSVS EG
//
