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  • SUMMARY

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  • MTAP
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

MTAP
Synonyms c86fus, MSAP
Gene descriptioni

Full gene name according to HGNC.

Methylthioadenosine phosphorylase
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Enzymes
Metabolic proteins
Plasma proteins
Potential drug targets
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 9
Cytoband p21.3
Chromosome location (bp) 21802636 - 21937651
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

5
Ensembl ENSG00000099810 (version 109)
Entrez gene 4507
HGNC HGNC:7413
UniProt Q13126 (UniProt - Evidence at protein level)
neXtProt NX_Q13126
GeneCards MTAP
Antibodypedia MTAP antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Catalyzes the reversible phosphorylation of S-methyl-5'- thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Glycosyltransferase, Transferase
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Purine salvage
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes an enzyme that plays a major role in polyamine metabolism and is important for the salvage pathway of both adenine and methionine. The encoded enzyme is deficient in many cancers. Multiple alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Sep 2021]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
MTAP-202
ENSP00000493852
ENST00000427788
A0A2R8Y4K0
[Direct mapping] S-methyl-5'-thioadenosine phosphorylase
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003824 [catalytic activity]
GO:0006166 [purine ribonucleoside salvage]
GO:0009116 [nucleoside metabolic process]
GO:0017061 [S-methyl-5-thioadenosine phosphorylase activity]
Show all
55 aa
6.2 kDa
No 0
MTAP-203
ENSP00000461932
ENST00000460874
B4DUC8
[Direct mapping] S-methyl-5'-thioadenosine phosphorylase
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003824 [catalytic activity]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006166 [purine ribonucleoside salvage]
GO:0009116 [nucleoside metabolic process]
GO:0016740 [transferase activity]
GO:0016757 [glycosyltransferase activity]
GO:0016763 [pentosyltransferase activity]
GO:0017061 [S-methyl-5-thioadenosine phosphorylase activity]
GO:0019509 [L-methionine salvage from methylthioadenosine]
Show all
300 aa
33.2 kDa
No 0
MTAP-205
ENSP00000462082
ENST00000577563
J3KRN1
[Direct mapping] S-methyl-5'-thioadenosine phosphorylase
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003824 [catalytic activity]
GO:0006166 [purine ribonucleoside salvage]
GO:0009116 [nucleoside metabolic process]
GO:0017061 [S-methyl-5-thioadenosine phosphorylase activity]
Show all
112 aa
12.6 kDa
No 0
MTAP-209
ENSP00000463424
ENST00000580900
Q13126
[Direct mapping] S-methyl-5'-thioadenosine phosphorylase
Show all
Enzymes
   ENZYME proteins
   Transferases
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Potential drug targets
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003824 [catalytic activity]
GO:0004645 [1,4-alpha-oligoglucan phosphorylase activity]
GO:0005515 [protein binding]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006139 [nucleobase-containing compound metabolic process]
GO:0006166 [purine ribonucleoside salvage]
GO:0009116 [nucleoside metabolic process]
GO:0016740 [transferase activity]
GO:0016757 [glycosyltransferase activity]
GO:0016763 [pentosyltransferase activity]
GO:0017061 [S-methyl-5-thioadenosine phosphorylase activity]
GO:0019509 [L-methionine salvage from methylthioadenosine]
GO:0070062 [extracellular exosome]
Show all
334 aa
36.9 kDa
No 0
MTAP-213
ENSP00000494373
ENST00000644715
Q13126
[Direct mapping] S-methyl-5'-thioadenosine phosphorylase
Show all
A0A384ME80
[Target identity:100%; Query identity:100%] S-methyl-5'-thioadenosine phosphorylase
Show all
Enzymes
   ENZYME proteins
   Transferases
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Potential drug targets
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003824 [catalytic activity]
GO:0004645 [1,4-alpha-oligoglucan phosphorylase activity]
GO:0005515 [protein binding]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006139 [nucleobase-containing compound metabolic process]
GO:0006166 [purine ribonucleoside salvage]
GO:0009116 [nucleoside metabolic process]
GO:0016740 [transferase activity]
GO:0016757 [glycosyltransferase activity]
GO:0016763 [pentosyltransferase activity]
GO:0017061 [S-methyl-5-thioadenosine phosphorylase activity]
GO:0019509 [L-methionine salvage from methylthioadenosine]
GO:0032259 [methylation]
GO:0033574 [response to testosterone]
GO:0070062 [extracellular exosome]
Show all
283 aa
31.2 kDa
No 0

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