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MAT1A
HPA
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  • MAT1A
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.

MAT1A
Synonyms MAT, MATA1, SAMS, SAMS1
Gene descriptioni

Full gene name according to HGNC.

Methionine adenosyltransferase 1A
Protein classi

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

Disease related genes
Enzymes
Human disease related genes
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 10
Cytoband q22.3
Chromosome location (bp) 80271820 - 80289658
Number of transcriptsi

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

2
Ensembl ENSG00000151224 (version 109)
Entrez gene 4143
HGNC HGNC:6903
UniProt Q00266 (UniProt - Evidence at protein level)
neXtProt NX_Q00266
GeneCards MAT1A
Antibodypedia MAT1A antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Catalyzes the formation of S-adenosylmethionine from methionine and ATP. The reaction comprises two steps that are both catalyzed by the same enzyme: formation of S-adenosylmethionine (AdoMet) and triphosphate, and subsequent hydrolysis of the triphosphate.... show less
Molecular function (UniProt)i

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

Transferase
Biological process (UniProt)i

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

One-carbon metabolism
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

ATP-binding, Magnesium, Metal-binding, Nucleotide-binding, Potassium
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene catalyzes a two-step reaction that involves the transfer of the adenosyl moiety of ATP to methionine to form S-adenosylmethionine and tripolyphosphate, which is subsequently cleaved to PPi and Pi. S-adenosylmethionine is the source of methyl groups for most biological methylations. The encoded protein is found as a homotetramer (MAT I) or a homodimer (MAT III) whereas a third form, MAT II (gamma), is encoded by the MAT2A gene. Mutations in this gene are associated with methionine adenosyltransferase deficiency. [provided by RefSeq, Jul 2008]... 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)
MAT1A-201
ENSP00000361287
ENST00000372213
Q00266
[Direct mapping] S-adenosylmethionine synthase isoform type-1
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
Human disease related genes
   Congenital disorders of metabolism
   Congenital disorders of amino acid metabolism
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000166 [nucleotide binding]
GO:0004478 [methionine adenosyltransferase activity]
GO:0005515 [protein binding]
GO:0005524 [ATP binding]
GO:0005829 [cytosol]
GO:0006556 [S-adenosylmethionine biosynthetic process]
GO:0006730 [one-carbon metabolic process]
GO:0009087 [methionine catabolic process]
GO:0016740 [transferase activity]
GO:0042802 [identical protein binding]
GO:0046872 [metal ion binding]
GO:0048269 [methionine adenosyltransferase complex]
GO:0051289 [protein homotetramerization]
Show all
395 aa
43.6 kDa
No 0
MAT1A-202
ENSP00000414961
ENST00000455001
B1ANE6
[Direct mapping] S-adenosylmethionine synthase isoform type-1
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital disorders of metabolism
   Congenital disorders of amino acid metabolism
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004478 [methionine adenosyltransferase activity]
GO:0005524 [ATP binding]
GO:0006556 [S-adenosylmethionine biosynthetic process]
GO:0046872 [metal ion binding]
Show all
145 aa
16 kDa
No 0

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