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UniProtKB/Swiss-Prot entry P22061


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name PIMT_HUMAN
Primary accession number P22061
Secondary accession numbers Q14661 Q16556 Q5VYC1 Q5VYC2 Q93061 Q96II9 Q99625 Q9BQV7 Q9BQV8 Q9NP03
Integrated into Swiss-Prot on August 1, 1991
Sequence was last modified on January 23, 2007 (Sequence version 3)
Annotations were last modified on    November 4, 2008 (Entry version 99)
Name and origin of the protein
Protein name Protein-L-isoaspartate(D-aspartate) O-methyltransferase
Synonyms PIMT
EC 2.1.1.77
Protein-beta-aspartate methyltransferase
Protein L-isoaspartyl/D-aspartyl methyltransferase
L-isoaspartyl protein carboxyl methyltransferase
Gene name
Name: PCMT1
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
PROTEIN SEQUENCE (ISOFORM 1).
TISSUE=Erythrocyte;
PubMed=2684970 [NCBI, ExPASy, EBI, Israel, Japan]
Ingrosso D., Fowler A.V., Bleibaum J., Clarke S.;
"Sequence of the D-aspartyl/L-isoaspartyl protein methyltransferase from human erythrocytes. Common sequence motifs for protein, DNA, RNA, and small molecule S-adenosylmethionine-dependent methyltransferases.";
J. Biol. Chem. 264:20131-20139(1989).
[2]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), AND VARIANT VAL-120.
TISSUE=Brain cortex;
DOI=10.1016/S0006-291X(05)80987-8; PubMed=1339271 [NCBI, ExPASy, EBI, Israel, Japan]
Maclaren D.C., Kagan R.M., Clarke S.;
"Alternative splicing of the human isoaspartyl protein carboxyl methyltransferase RNA leads to the generation of a C-terminal -RDEL sequence in isozyme II.";
Biochem. Biophys. Res. Commun. 185:277-283(1992).
[3]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), AND VARIANT VAL-120.
PubMed=7592526 [NCBI, ExPASy, EBI, Israel, Japan]
Takeda R., Mizobuchi M., Murao K., Sato M., Takahara J.;
"Characterization of three cDNAs encoding two isozymes of an isoaspartyl protein carboxyl methyltransferase from human erythroid leukemia cells.";
J. Biochem. 117:683-685(1995).
[4]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), AND VARIANT VAL-120.
TISSUE=Brain;
Shirasawa T., Takahashi H., Endoh R., Sakamoto K., Hirokawa K., Mori H.;
"Gene expression of carboxyl methyltransferase is altered in Alzheimer's disease and the product is localized to neurofibrillary tangles.";
Submitted (APR-1994) to the EMBL/GenBank/DDBJ databases.
[5]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND VARIANT VAL-120.
DOI=10.1038/nature02055; PubMed=14574404 [NCBI, ExPASy, EBI, Israel, Japan]
Mungall A.J., Palmer S.A., Sims S.K., Edwards C.A., Ashurst J.L., Wilming L., Jones M.C., Horton R., Hunt S.E., Scott C.E., Gilbert J.G.R., Clamp M.E., Bethel G., Milne S., Ainscough R., Almeida J.P., Ambrose K.D., Andrews T.D., Ashwell R.I.S., Babbage A.K., Bagguley C.L., Bailey J., Banerjee R., Barker D.J., Barlow K.F., Bates K., Beare D.M., Beasley H., Beasley O., Bird C.P., Blakey S.E., Bray-Allen S., Brook J., Brown A.J., Brown J.Y., Burford D.C., Burrill W., Burton J., Carder C., Carter N.P., Chapman J.C., Clark S.Y., Clark G., Clee C.M., Clegg S., Cobley V., Collier R.E., Collins J.E., Colman L.K., Corby N.R., Coville G.J., Culley K.M., Dhami P., Davies J., Dunn M., Earthrowl M.E., Ellington A.E., Evans K.A., Faulkner L., Francis M.D., Frankish A., Frankland J., French L., Garner P., Garnett J., Ghori M.J., Gilby L.M., Gillson C.J., Glithero R.J., Grafham D.V., Grant M., Gribble S., Griffiths C., Griffiths M.N.D., Hall R., Halls K.S., Hammond S., Harley J.L., Hart E.A., Heath P.D., Heathcott R., Holmes S.J., Howden P.J., Howe K.L., Howell G.R., Huckle E., Humphray S.J., Humphries M.D., Hunt A.R., Johnson C.M., Joy A.A., Kay M., Keenan S.J., Kimberley A.M., King A., Laird G.K., Langford C., Lawlor S., Leongamornlert D.A., Leversha M., Lloyd C.R., Lloyd D.M., Loveland J.E., Lovell J., Martin S., Mashreghi-Mohammadi M., Maslen G.L., Matthews L., McCann O.T., McLaren S.J., McLay K., McMurray A., Moore M.J.F., Mullikin J.C., Niblett D., Nickerson T., Novik K.L., Oliver K., Overton-Larty E.K., Parker A., Patel R., Pearce A.V., Peck A.I., Phillimore B.J.C.T., Phillips S., Plumb R.W., Porter K.M., Ramsey Y., Ranby S.A., Rice C.M., Ross M.T., Searle S.M., Sehra H.K., Sheridan E., Skuce C.D., Smith S., Smith M., Spraggon L., Squares S.L., Steward C.A., Sycamore N., Tamlyn-Hall G., Tester J., Theaker A.J., Thomas D.W., Thorpe A., Tracey A., Tromans A., Tubby B., Wall M., Wallis J.M., West A.P., White S.S., Whitehead S.L., Whittaker H., Wild A., Willey D.J., Wilmer T.E., Wood J.M., Wray P.W., Wyatt J.C., Young L., Younger R.M., Bentley D.R., Coulson A., Durbin R.M., Hubbard T., Sulston J.E., Dunham I., Rogers J., Beck S.;
"The DNA sequence and analysis of human chromosome 6.";
Nature 425:805-811(2003).
[6]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2), AND VARIANT VAL-120.
TISSUE=Muscle, and Skin;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[7]
NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-18.
TISSUE=Foreskin;
DOI=10.1006/abbi.1996.0513; PubMed=8914929 [NCBI, ExPASy, EBI, Israel, Japan]
Devry C.G., Tsai W., Clarke S.;
"Structure of the human gene encoding the protein repair L-isoaspartyl (D-aspartyl) O-methyltransferase.";
Arch. Biochem. Biophys. 335:321-332(1996).
[8]
PROTEIN SEQUENCE OF 5-19; 44-60; 106-170; 179-198 AND 205-220, AND VARIANT VAL-120.
DOI=10.1021/bi00414a042; PubMed=3167043 [NCBI, ExPASy, EBI, Israel, Japan]
Gilbert J.M., Fowler A., Bleibaum J., Clarke S.;
"Purification of homologous protein carboxyl methyltransferase isozymes from human and bovine erythrocytes.";
Biochemistry 27:5227-5233(1988).
[9]
NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 20-53; 100-139 AND 169-224, AND VARIANT VAL-120.
DOI=10.1006/bbrc.1994.2209; PubMed=8074695 [NCBI, ExPASy, EBI, Israel, Japan]
Tsai W., Clarke S.;
"Amino acid polymorphisms of the human L-isoaspartyl/D-aspartyl methyltransferase involved in protein repair.";
Biochem. Biophys. Res. Commun. 203:491-497(1994).
[10]
PROTEIN SEQUENCE OF 82-98, AND MASS SPECTROMETRY.
TISSUE=Brain, and Cajal-Retzius cell;
Lubec G., Afjehi-Sadat L.;
Submitted (MAR-2007) to UniProtKB.
[11]
PARTIAL PROTEIN SEQUENCE (ISOFORM 2).
TISSUE=Erythrocyte;
DOI=10.1016/S0006-291X(05)81242-2; PubMed=1998518 [NCBI, ExPASy, EBI, Israel, Japan]
Ingrosso D., Kagan R.M., Clarke S.;
"Distinct C-terminal sequences of isozymes I and II of the human erythrocyte L-isoaspartyl/D-aspartyl protein methyltransferase.";
Biochem. Biophys. Res. Commun. 175:351-358(1991).
[12]
VARIANT VAL-120.
DOI=10.1007/s100380050161; PubMed=10496068 [NCBI, ExPASy, EBI, Israel, Japan]
DeVry C.G., Clarke S.;
"Polymorphic forms of the protein L-isoaspartate (D-aspartate) O-methyltransferase involved in the repair of age-damaged proteins.";
J. Hum. Genet. 44:275-288(1999).
[13]
X-RAY CRYSTALLOGRAPHY (2.1 ANGSTROMS).
DOI=10.1074/jbc.M200229200; PubMed=11792715 [NCBI, ExPASy, EBI, Israel, Japan]
Ryttersgaard C., Griffith S.C., Sawaya M.R., MacLaren D.C., Clarke S., Yeates T.O.;
"Crystal structure of human L-isoaspartyl methyltransferase.";
J. Biol. Chem. 277:10642-10646(2002).
[14]
X-RAY CRYSTALLOGRAPHY (1.5 ANGSTROMS).
DOI=10.1110/ps.37802; PubMed=11847284 [NCBI, ExPASy, EBI, Israel, Japan]
Smith C.D., Carson M., Friedman A.M., Skinner M.M., Delucas L., Chantalat L., Weise L., Shirasawa T., Chattopadhyay D.;
"Crystal structure of human L-isoaspartyl-O-methyl-transferase with S-adenosyl homocysteine at 1.6-A resolution and modeling of an isoaspartyl-containing peptide at the active site.";
Protein Sci. 11:625-635(2002).
Comments
  • FUNCTION: Catalyzes the methyl esterification of L-isoaspartyl and D-aspartyl residues in peptides and proteins that result from spontaneous decomposition of normal L-aspartyl and L-asparaginyl residues. It plays a role in the repair and/or degradation of damaged proteins. Acts on microtubule-associated protein 2, calreticulin, clathrin light chains a and b, Ubiquitin carboxyl-terminal hydrolase isozyme L1, phosphatidylethanolamine-binding protein 1, stathmin, beta-synuclein and alpha-synuclein (By similarity).
  • CATALYTIC ACTIVITY: S-adenosyl-L-methionine + protein L-isoaspartate = S-adenosyl-L-homocysteine + protein L-isoaspartate alpha-methyl ester.
  • SUBUNIT: Monomer.
  • INTERACTION:
    Self; NbExp=1; IntAct=EBI-353343, EBI-353343;
    O60739:EIF1B; NbExp=1; IntAct=EBI-353343, EBI-1043343;
    P40337:VHL; NbExp=1; IntAct=EBI-353343, EBI-301246;
  • SUBCELLULAR LOCATION: Cytoplasm.
  • ALTERNATIVE PRODUCTS: 2 named isoforms [FASTA] produced by alternative splicing.
    Name1
    Isoform IDP22061-1
    This is the isoform sequence displayed in this entry.
    Name2
    Isoform IDP22061-2
    Features which should be applied to build the isoform sequence: VSP_004716.
  • POLYMORPHISM: The allele frequencies for the polymorphism at codon 120 differ between ethnic groups; in the Caucasian population Ile-120 is present at a frequency of 0.45, while it is found at a frequency of 0.88 and 0.81 in the Asian and the African populations respectively. Val-120 is found at a frequency of 0.55 in the Caucasians, 0.12 and 0.19 in the Asian and African populations respectively. The Ile-120 variant has higher specific activity and thermostability than the Val-120 variant. The Val-120 variant has a higher affinity for protein substrates.
  • SIMILARITY: Belongs to the L-isoaspartyl/D-aspartyl protein methyltransferase family.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
M93008; AAA90934.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
M93009; AAA90933.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D25545; BAA05028.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D25546; BAA05029.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D25547; BAA05030.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D13892; BAA02991.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AL355312; CAH72862.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AL355312; CAH72863.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC007501; AAH07501.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC008748; AAH08748.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
U49740; AAB38386.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
S73902; AAC60639.2; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
S73903; AAC60640.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
S73905; AAC60641.2; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR A34489; A34489.
JH0624; JH0624.
RefSeq NP_005380.1; -.
UniGene Hs.279257
3D structure databases
PDB
1I1N; X-ray; 1.50 A; A=1-227.[ExPASy / RCSB / EBI]
1KR5; X-ray; 2.10 A; A=1-227.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1I1N; -.
1KR5; -.
ModBase P22061.
Protein-protein interaction databases
IntAct P22061; -.
2D gel databases
OGP P22061; -.
REPRODUCTION-2DPAGE IPI00411680; -.
Organism-specific databases
H-InvDB HIX0006288; -.
HGNC HGNC:8728; PCMT1.
GenAtlas PCMT1.
HPA HPA003239; -.
MIM 176851; gene. [NCBI / EBI]
PharmGKB PA262; -.
GeneCards P22061.
Gene expression databases
ArrayExpress P22061; -.
GermOnline ENSG00000120265; Homo sapiens.
Ontologies
GO
GO:0005783; Cellular component: endoplasmic reticulum (traceable author statement from ProtInc).
GO:0042802; Molecular function: identical protein binding (inferred from physical interaction from IntAct).
GO:0004719; Molecular function: protein-L-isoaspartate (D-aspartate) O-methyltransferase activity (traceable author statement from UniProtKB).
GO:0006479; Biological process: protein amino acid methylation (traceable author statement from ProtInc).
GO:0030091; Biological process: protein repair (traceable author statement from UniProtKB).
QuickGo view.
Family and domain databases
InterPro IPR000682; PCMT.
Graphical view of domain structure.
PANTHER PTHR11579; PCMT; 1.
Pfam PF01135; PCMT; 1.
Pfam graphical view of domain structure.
TIGRFAMs TIGR00080; pimt; 1.
PROSITE PS01279; PCMT; 1.
ProtoNet P22061.
Genome annotation databases
Ensembl ENSG00000120265; Homo sapiens. [Contig view]
GeneID 5110; -.
KEGG hsa:5110; -.
Phylogenomic databases
HOVERGEN P22061; -.
Other
NextBio 19718; -.
SOURCE PCMT1; Homo sapiens.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Acetylation; Alternative splicing; Cytoplasm; Direct protein sequencing; Methyltransferase; Polymorphism; S-adenosyl-L-methionine; Transferase.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
INIT_MET   1     1        Removed. 
CHAIN   2   227  226     Protein-L-isoaspartate(D-aspartate) O-methyltransferase. PRO_0000111875
ACT_SITE   60    60         
MOD_RES   2     2        N-acetylalanine. 
DISULFID   43    95        By similarity. 
VAR_SEQ   226   227        WK -> DEL (in isoform 2). VSP_004716
VARIANT   120   120  1     I -> V (in dbSNP:rs4816 [NCBI]). VAR_006173 [3D]
CONFLICT   19    19        K -> G (in Ref. 8; AA sequence). 
CONFLICT   23    23        I -> L (in Ref. 1; AA sequence). 
CONFLICT   60    60        S -> A (in Ref. 8; AA sequence). 
CONFLICT   102   102        C -> Q (in Ref. 1; AA sequence). 
CONFLICT   168   168        A -> P (in Ref. 8; AA sequence). 
CONFLICT   206   206        K -> R (in Ref. 2; AAA90933). 
HELIX   10    19  10      
HELIX   26    33  8      
HELIX   37    39  3      
STRAND   47    49  3      
STRAND   51    54  4      
STRAND   57    59  3      
HELIX   62    71  10      
TURN   72    75  4      
STRAND   81    85  5      
HELIX   91   100  10      
STRAND   105   111  7      
HELIX   113   126  14      
HELIX   129   132  4      
STRAND   134   141  8      
HELIX   143   145  3      
HELIX   148   150  3      
STRAND   153   158  6      
STRAND   160   164  5      
HELIX   167   171  5      
STRAND   173   184  12      
STRAND   190   197  8      
STRAND   203   211  9      
HELIX   219   222  4      
Sequence information
Length: 227 AA [This is the length of the unprocessed precursor] Molecular weight: 24650 Da [This is the MW of the unprocessed precursor] CRC64: 987D63EA48422CA8 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MAWKSGGASH SELIHNLRKN GIIKTDKVFE VMLATDRSHY AKCNPYMDSP QSIGFQATIS 

        70         80         90        100        110        120 
APHMHAYALE LLFDQLHEGA KALDVGSGSG ILTACFARMV GCTGKVIGID HIKELVDDSI 

       130        140        150        160        170        180 
NNVRKDDPTL LSSGRVQLVV GDGRMGYAEE APYDAIHVGA AAPVVPQALI DQLKPGGRLI 

       190        200        210        220 
LPVGPAGGNQ MLEQYDKLQD GSIKMKPLMG VIYVPLTDKE KQWSRWK 

P22061 in FASTA format

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