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Aliases for MAT1A Gene

Aliases for MAT1A Gene

  • Methionine Adenosyltransferase 1A 2 3 5
  • Methionine Adenosyltransferase I, Alpha 2 3
  • Methionine Adenosyltransferase I/III 3 4
  • Methionine Adenosyltransferase 1 3 4
  • AdoMet Synthase 1 3 4
  • EC 4 58
  • MAT-I/III 3 4
  • MAT 1 3 4
  • MATA1 3 4
  • S-Adenosylmethionine Synthetase Isoform Type-1 3
  • S-Adenosylmethionine Synthase Isoform Type-1 3
  • S-Adenosylmethionine Synthetase 2
  • S-Adenosylmethionine Synthase 3
  • AdoMet Synthetase 1 3
  • SAMS1 3
  • SAMS 3
  • AMS1 4
  • MAT 3

External Ids for MAT1A Gene

Previous GeneCards Identifiers for MAT1A Gene

  • GC10M080988
  • GC10M081253
  • GC10M082162
  • GC10M081696
  • GC10M082021
  • GC10M075874

Summaries for MAT1A Gene

Entrez Gene Summary for MAT1A Gene

  • 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]

GeneCards Summary for MAT1A Gene

MAT1A (Methionine Adenosyltransferase 1A) is a Protein Coding gene. Diseases associated with MAT1A include Hypermethioninemia, Persistent, Autosomal Dominant, Due To Methionine Adenosyltransferase I/Iii Deficiency and Hypermethioninemia. Among its related pathways are Metabolism and superpathway of methionine degradation. GO annotations related to this gene include methionine adenosyltransferase activity. An important paralog of this gene is MAT2A.

UniProtKB/Swiss-Prot for MAT1A Gene

  • 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.

Additional gene information for MAT1A Gene

No data available for CIViC summary , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for MAT1A Gene

Genomics for MAT1A Gene

Regulatory Elements for MAT1A Gene

Enhancers for MAT1A Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH10H080265 0.8 ENCODE 28.5 +23.6 23623 1.3 HDAC1 TAL1 MAX TCF12 GATA2 HNF4G NR2F6 EGR2 RNF2 SP5 MAT1A FAM213A DYDC2 DYDC1 ENSG00000235858 PIR41962 GC10P081056 PIR35729
GH10H080192 1.9 FANTOM5 ENCODE dbSUPER 10.2 +88.7 88702 16.8 HDGF PKNOX1 FOXA2 ARNT ARID4B SIN3A FEZF1 DMAP1 ZNF2 YY1 MBL1P LOC642361 ENSG00000235858 LINC00857 ENSG00000272489 MAT1A ANXA11 DYDC2 PLAC9 SH2D4B
GH10H080321 0.5 FANTOM5 38 -31.5 -31463 0.1 FOXA2 YY1 FOXA1 MAT1A TMEM254 ENSG00000235858 ZNF519P1
GH10H080281 1 ENCODE 18 +8.0 8000 0.2 FOXA2 ATF1 MLX DMAP1 YY1 SLC30A9 ATF7 REST PPARG KAT8 MAT1A PIR36250 GC10M080275
GH10H080153 1.6 Ensembl ENCODE dbSUPER 5.5 +128.4 128448 15.4 HDGF PKNOX1 ARNT SIN3A FEZF1 ZNF2 FOS DEK REST SMARCB1 LINC00857 ENSG00000272489 MBL1P ANXA11 PLAC9 MAT1A SFTPD TSPAN14 GC10M080155
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around MAT1A on UCSC Golden Path with GeneCards custom track

Genomic Locations for MAT1A Gene

Genomic Locations for MAT1A Gene
18,160 bases
Minus strand

Genomic View for MAT1A Gene

Genes around MAT1A on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
MAT1A Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for MAT1A Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for MAT1A Gene

Proteins for MAT1A Gene

  • Protein details for MAT1A Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    S-adenosylmethionine synthase isoform type-1
    Protein Accession:
    Secondary Accessions:
    • D3DWD5
    • Q5QP09

    Protein attributes for MAT1A Gene

    395 amino acids
    Molecular mass:
    43648 Da
    Name=K(+); Xref=ChEBI:CHEBI:29103;
    Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
    Quaternary structure:
    • Homotetramer (MAT-I); dimer of dimers (PubMed:23425511). Homodimer (MAT-III) (By similarity).

    Three dimensional structures from OCA and Proteopedia for MAT1A Gene

neXtProt entry for MAT1A Gene

Selected DME Specific Peptides for MAT1A Gene


Post-translational modifications for MAT1A Gene

  • An intrachain disulfide bond can be formed. The protein structure shows that the relevant Cys residues are in a position that would permit formation of a disulfide bond.
  • S-nitrosylation of Cys-120 inactivates the enzyme.
  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for MAT1A Gene

Domains & Families for MAT1A Gene

Gene Families for MAT1A Gene

Human Protein Atlas (HPA):
  • Disease related genes
  • Enzymes
  • Plasma proteins
  • Potential drug targets
  • Predicted intracellular proteins

Suggested Antigen Peptide Sequences for MAT1A Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the AdoMet synthase family.
  • Belongs to the AdoMet synthase family.
genes like me logo Genes that share domains with MAT1A: view

Function for MAT1A Gene

Molecular function for MAT1A Gene

GENATLAS Biochemistry:
methionine adenosyltransferase,specifically expressed in liver,sulfur aminoacid metabolism
UniProtKB/Swiss-Prot CatalyticActivity:
ATP + L-methionine + H(2)O = phosphate + diphosphate + S-adenosyl-L-methionine.
UniProtKB/Swiss-Prot Function:
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.

Enzyme Numbers (IUBMB) for MAT1A Gene

Gene Ontology (GO) - Molecular Function for MAT1A Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000166 nucleotide binding IEA --
GO:0004478 methionine adenosyltransferase activity IEA,TAS --
GO:0005524 ATP binding IEA --
GO:0016740 transferase activity IEA --
GO:0042802 identical protein binding IPI 25416956
genes like me logo Genes that share ontologies with MAT1A: view
genes like me logo Genes that share phenotypes with MAT1A: view

Human Phenotype Ontology for MAT1A Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for MAT1A Gene

MGI Knock Outs for MAT1A:

Animal Model Products

CRISPR Products

Inhibitory RNA Products

No data available for Phenotypes From GWAS Catalog , Transcription Factor Targets and HOMER Transcription for MAT1A Gene

Localization for MAT1A Gene

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for MAT1A gene
Compartment Confidence
cytosol 5
nucleus 2
cytoskeleton 1
mitochondrion 1

Gene Ontology (GO) - Cellular Components for MAT1A Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005829 cytosol TAS,IBA --
genes like me logo Genes that share ontologies with MAT1A: view

No data available for Subcellular locations from UniProtKB/Swiss-Prot and Subcellular locations from the Human Protein Atlas (HPA) for MAT1A Gene

Pathways & Interactions for MAT1A Gene

genes like me logo Genes that share pathways with MAT1A: view

UniProtKB/Swiss-Prot Q00266-METK1_HUMAN

  • Pathway: Amino-acid biosynthesis; S-adenosyl-L-methionine biosynthesis; S-adenosyl-L-methionine from L-methionine: step 1/1.

Interacting Proteins for MAT1A Gene

Gene Ontology (GO) - Biological Process for MAT1A Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000096 sulfur amino acid metabolic process TAS --
GO:0001887 selenium compound metabolic process TAS --
GO:0006556 S-adenosylmethionine biosynthetic process IEA,IMP 10677294
GO:0006730 one-carbon metabolic process IEA --
GO:0009087 methionine catabolic process IMP 10677294
genes like me logo Genes that share ontologies with MAT1A: view

No data available for SIGNOR curated interactions for MAT1A Gene

Drugs & Compounds for MAT1A Gene

(21) Drugs for MAT1A Gene - From: DrugBank, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
L-Methionine Approved Nutra Enzyme, substrate 0
Ademetionine Approved Nutra Target, cofactor 0
Phosphoric acid Approved Pharma 0
Potassium Approved Pharma 0
Selenomethionine Approved Pharma 0

(10) Additional Compounds for MAT1A Gene - From: Novoseek and HMDB

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • (3S)-5'-[(3-amino-3-carboxypropyl)methylsulfonio]-5'-deoxyadenosine
  • 2-S-Adenosyl-L-methionine
  • 5'-Deoxyadenosine-5'-L-methionine disulfate ditosylate
  • 5'-Deoxyadenosine-5'-L-methionine disulphate ditosylate
  • Active methionine
  • NFB Orthophosphate
  • O-Phosphoric acid
  • Ortho-phosphate
  • Orthophosphate (PO43-)
  • Orthophosphate(3-)
  • (4-)Diphosphoric acid ion
  • (P2O74-)Diphosphate
  • Diphosphate
  • Diphosphoric acid
  • PPi
genes like me logo Genes that share compounds with MAT1A: view

Transcripts for MAT1A Gene

Unigene Clusters for MAT1A Gene

Methionine adenosyltransferase I, alpha:
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

Alternative Splicing Database (ASD) splice patterns (SP) for MAT1A Gene

ExUns: 1 ^ 2 ^ 3 ^ 4 ^ 5 ^ 6a · 6b ^ 7a · 7b ^ 8 ^ 9
SP1: -
SP2: -

Relevant External Links for MAT1A Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for MAT1A Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for MAT1A Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for MAT1A Gene

This gene is overexpressed in Liver (x50.1).

Protein differential expression in normal tissues from HIPED for MAT1A Gene

This gene is overexpressed in Gallbladder (33.2), Liver (16.4), and Liver, secretome (16.4).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, MaxQB, and MOPED for MAT1A Gene

Protein tissue co-expression partners for MAT1A Gene

NURSA nuclear receptor signaling pathways regulating expression of MAT1A Gene:


SOURCE GeneReport for Unigene cluster for MAT1A Gene:


mRNA Expression by UniProt/SwissProt for MAT1A Gene:

Tissue specificity: Expressed in liver.

Evidence on tissue expression from TISSUES for MAT1A Gene

  • Liver(4.8)

Phenotype-based relationships between genes and organs from Gene ORGANizer for MAT1A Gene

Germ Layers:
  • ectoderm
  • mesoderm
  • nervous
  • skeletal muscle
Head and neck:
  • brain
  • cerebellum
  • head
  • peripheral nerve
  • peripheral nervous system
  • spinal cord
genes like me logo Genes that share expression patterns with MAT1A: view

Orthologs for MAT1A Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for MAT1A Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia MAT1A 33 34
  • 99.16 (n)
(Monodelphis domestica)
Mammalia MAT1A 34
  • 94 (a)
(Canis familiaris)
Mammalia MAT1A 33 34
  • 90.38 (n)
(Rattus norvegicus)
Mammalia Mat1a 33
  • 89.37 (n)
(Bos Taurus)
Mammalia MAT1A 33 34
  • 89.2 (n)
(Mus musculus)
Mammalia Mat1a 33 16 34
  • 88.52 (n)
(Ornithorhynchus anatinus)
Mammalia MAT1A 34
  • 80 (a)
(Gallus gallus)
Aves MAT1A 33 34
  • 78.31 (n)
(Anolis carolinensis)
Reptilia MAT1A 34
  • 84 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia mat1a 33
  • 74.51 (n)
(Danio rerio)
Actinopterygii mat1a 33 34
  • 76.87 (n)
wufi35e01 33
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.296 33
fruit fly
(Drosophila melanogaster)
Insecta M(2)21AB 35
  • 72 (a)
Sam-S 34
  • 66 (a)
(Caenorhabditis elegans)
Secernentea C06E7.1a 35
  • 72 (a)
C49F5.1 35
  • 69 (a)
sams-3 34
  • 67 (a)
sams-4 34
  • 67 (a)
sams-5 34
  • 67 (a)
sams-1 34
  • 65 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes SAM1 34 36
  • 68 (a)
SAM2 34
  • 67 (a)
thale cress
(Arabidopsis thaliana)
eudicotyledons SAM-2 33
  • 62.07 (n)
(Glycine max)
eudicotyledons Gma.1681 33
(Oryza sativa)
Liliopsida Os01g0293000 33
  • 63.84 (n)
(Hordeum vulgare)
Liliopsida Hv.2038 33
(Zea mays)
Liliopsida Zm.5785 33
sea squirt
(Ciona savignyi)
Ascidiacea CSA.10263 34
  • 61 (a)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.4392 33
Species where no ortholog for MAT1A was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for MAT1A Gene

Gene Tree for MAT1A (if available)
Gene Tree for MAT1A (if available)

Paralogs for MAT1A Gene

Paralogs for MAT1A Gene

(1) SIMAP similar genes for MAT1A Gene using alignment to 2 proteins:

genes like me logo Genes that share paralogs with MAT1A: view

Variants for MAT1A Gene

Sequence variations from dbSNP and Humsavar for MAT1A Gene

SNP ID Clin Chr 10 pos Sequence Context AA Info Type
rs118204001 Pathogenic, Methionine adenosyltransferase deficiency (MATD) [MIM:250850] 80,274,639(-) GCCAT(G/T)GGTGT reference, missense
rs118204002 Pathogenic, Methionine adenosyltransferase deficiency (MATD) [MIM:250850] 80,285,517(-) GGTGG(A/C/T)CTGTG reference, missense
rs118204003 Pathogenic, Methionine adenosyltransferase deficiency (MATD) [MIM:250850] 80,274,535(-) CCGGC(C/T)GGGCG reference, missense
rs118204004 Pathogenic, Methionine adenosyltransferase deficiency (MATD) [MIM:250850] 80,275,054(-) GTCTC(C/T)GGTGA reference, missense
rs118204005 Pathogenic, Methionine adenosyltransferase deficiency (MATD) [MIM:250850] 80,275,178(-) CTGGC(C/T)GTAAG reference, missense

Structural Variations from Database of Genomic Variants (DGV) for MAT1A Gene

Variant ID Type Subtype PubMed ID
nsv1141879 OTHER inversion 24896259

Variation tolerance for MAT1A Gene

Residual Variation Intolerance Score: 16.7% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.69; 14.68% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for MAT1A Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for MAT1A Gene

Disorders for MAT1A Gene

MalaCards: The human disease database

(8) MalaCards diseases for MAT1A Gene - From: HGMD, OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
hypermethioninemia, persistent, autosomal dominant, due to methionine adenosyltransferase i/iii deficiency
  • methionine adenosyltransferase deficiency, autosomal recessive
  • deficiency of methionine adenosyltransferase
methionine adenosyltransferase deficiency
  • mat deficiency
glycine n-methyltransferase deficiency
  • gnmt deficiency
alpha-methylacetoacetic aciduria
  • beta-ketothiolase deficiency
- elite association - COSMIC cancer census association via MalaCards
Search MAT1A in MalaCards View complete list of genes associated with diseases


  • Methionine adenosyltransferase deficiency (MATD) [MIM:250850]: An inborn error of metabolism resulting in isolated hypermethioninemia. Most patients have no clinical abnormalities, although some neurologic symptoms may be present in rare cases with severe loss of methionine adenosyltransferase activity. {ECO:0000269 PubMed:10677294, ECO:0000269 PubMed:7560086, ECO:0000269 PubMed:8770875, ECO:0000269 PubMed:9042912}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Genatlas disease for MAT1A Gene

hypermethioninemia,persistent with brain demyelination in homozygote

Relevant External Links for MAT1A

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with MAT1A: view

Publications for MAT1A Gene

  1. Demyelination of the brain is associated with methionine adenosyltransferase I/III deficiency. (PMID: 8770875) Chamberlin ME … Chou JY (The Journal of clinical investigation 1996) 3 4 22 45 60
  2. MAT1A variants are associated with hypertension, stroke, and markers of DNA damage and are modulated by plasma vitamin B-6 and folate. (PMID: 20335551) Lai CQ … Ordovás JM (The American journal of clinical nutrition 2010) 3 22 45 60
  3. Methionine adenosyltransferase I/III deficiency: novel mutations and clinical variations. (PMID: 10677294) Chamberlin ME … Chou JY (American journal of human genetics 2000) 3 4 22 60
  4. Dominant inheritance of isolated hypermethioninemia is associated with a mutation in the human methionine adenosyltransferase 1A gene. (PMID: 9042912) Chamberlin ME … Chou JY (American journal of human genetics 1997) 3 4 22 60
  5. Molecular mechanisms of an inborn error of methionine pathway. Methionine adenosyltransferase deficiency. (PMID: 7560086) Ubagai T … Chou JY (The Journal of clinical investigation 1995) 3 4 22 60

Products for MAT1A Gene

Sources for MAT1A Gene

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