Homo sapiens Gene: MAT1A
Summary
InnateDB Gene IDBG-80409.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol MAT1A
Gene Name methionine adenosyltransferase I, alpha
Synonyms MAT; MATA1; SAMS; SAMS1
Species Homo sapiens
Ensembl Gene ENSG00000151224
Encoded Proteins
methionine adenosyltransferase I, alpha
methionine adenosyltransferase I, alpha
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary 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]
Gene Information
Type Protein coding
Genomic Location Chromosome 10:80271820-80289684
Strand Reverse strand
Band q22.3
Transcripts
ENST00000372213 ENSP00000361287
ENST00000455001 ENSP00000414961
ENST00000485270
ENST00000480845
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 5 experimentally validated interaction(s) in this database.
They are also associated with 2 interaction(s) predicted by orthology.
Experimentally validated
Total 5 [view]
Protein-Protein 4 [view]
Protein-DNA 1 [view]
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 2 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0004478 methionine adenosyltransferase activity
GO:0005524 ATP binding
GO:0046872 metal ion binding
Biological Process
GO:0000096 sulfur amino acid metabolic process
GO:0006520 cellular amino acid metabolic process
GO:0006556 S-adenosylmethionine biosynthetic process
GO:0006730 one-carbon metabolic process
GO:0006805 xenobiotic metabolic process
GO:0032259 methylation
GO:0034641 cellular nitrogen compound metabolic process
GO:0044281 small molecule metabolic process
Cellular Component
GO:0005829 cytosol
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
Sulfur amino acid metabolism pathway
Methylation pathway
Metabolism of amino acids and derivatives pathway
Phase II conjugation pathway
Metabolism pathway
Biological oxidations pathway
KEGG
Cysteine and methionine metabolism pathway
INOH
Methionine Cysteine metabolism pathway
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Hs.282670
RefSeq NM_000429 XM_005269842
HUGO
OMIM
CCDS CCDS7365
HPRD 02013
IMGT
EMBL
GenPept
RNA Seq Atlas