ID G4T0X0_META2 Unreviewed; 245 AA.
AC G4T0X0;
DT 14-DEC-2011, integrated into UniProtKB/TrEMBL.
DT 14-DEC-2011, sequence version 1.
DT 27-MAR-2024, entry version 59.
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 ECO:0000313|EMBL:CCE23404.1};
GN OrderedLocusNames=MEALZ_1717 {ECO:0000313|EMBL:CCE23404.1};
OS Methylotuvimicrobium alcaliphilum (strain DSM 19304 / NCIMB 14124 / VKM
OS B-2133 / 20Z) (Methylomicrobium alcaliphilum).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Methylococcales;
OC Methylococcaceae; Methylotuvimicrobium.
OX NCBI_TaxID=1091494 {ECO:0000313|EMBL:CCE23404.1, ECO:0000313|Proteomes:UP000008315};
RN [1] {ECO:0000313|Proteomes:UP000008315}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19304 / NCIMB 14124 / VKM B-2133 / 20Z
RC {ECO:0000313|Proteomes:UP000008315};
RX PubMed=22207753; DOI=10.1128/JB.06392-11;
RA Vuilleumier S., Khmelenina V.N., Bringel F., Reshetnikov A.S., Lajus A.,
RA Mangenot S., Rouy Z., Op den Camp H.J., Jetten M.S., Dispirito A.A.,
RA Dunfield P., Klotz M.G., Semrau J.D., Stein L.Y., Barbe V., Medigue C.,
RA Trotsenko Y.A., Kalyuzhnaya M.G.;
RT "Genome sequence of the haloalkaliphilic methanotrophic bacterium
RT Methylomicrobium alcaliphilum 20Z.";
RL J. Bacteriol. 194:551-552(2012).
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; FO082060; CCE23404.1; -; Genomic_DNA.
DR RefSeq; WP_014148197.1; NC_016112.1.
DR AlphaFoldDB; G4T0X0; -.
DR STRING; 1091494.MEALZ_1717; -.
DR KEGG; mah:MEALZ_1717; -.
DR PATRIC; fig|271065.3.peg.1761; -.
DR HOGENOM; CLU_055432_2_0_6; -.
DR Proteomes; UP000008315; 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:CCE23404.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000008315};
KW S-adenosyl-L-methionine {ECO:0000256|HAMAP-Rule:MF_00090};
KW Signal {ECO:0000256|SAM:SignalP};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00090, ECO:0000313|EMBL:CCE23404.1}.
FT SIGNAL 1..23
FT /evidence="ECO:0000256|SAM:SignalP"
FT CHAIN 24..245
FT /note="Protein-L-isoaspartate O-methyltransferase"
FT /evidence="ECO:0000256|SAM:SignalP"
FT /id="PRO_5003468363"
FT ACT_SITE 95
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00090"
SQ SEQUENCE 245 AA; 27219 MW; 772711760833FC7C CRC64;
MNKQFRLVIF AIMLFGVANY AMAGETAYER QRNRLIDMIQ ADVRSTSYFL GKDALDEKVL
QALRKVPRHE FVPEAQRPNA YLNRPLPIGH GQTISQPYIV AIMTDLLELD ENSRVLEIGT
GSAYQAAVLA EVAGSVYTIE IIEALADQAA RDLKRLGYDK VQSRAGDGYY GWEGAAPFDA
IMVTAAASHI PPPLIKQLKP GGRMIIPVGG RFTVQHLVLV NKDQENRITS RQLLPVRFVP
LTGDR
//
