Aliases for ADA Gene
External Ids for ADA Gene
Previous GeneCards Identifiers for ADA Gene
This gene encodes an enzyme that catalyzes the hydrolysis of adenosine to inosine in the purine catabolic pathway. Various mutations have been described for this gene and have been linked to human diseases related to impaired immune function such as severe combined immunodeficiency disease (SCID) which is the result of a deficiency in the ADA enzyme. In ADA-deficient individuals there is a marked depletion of T, B, and NK lymphocytes, and consequently, a lack of both humoral and cellular immunity. Conversely, elevated levels of this enzyme are associated with congenital hemolytic anemia. [provided by RefSeq, Sep 2019]
GeneCards Summary for ADA Gene
ADA (Adenosine Deaminase) is a Protein Coding gene. Diseases associated with ADA include Severe Combined Immunodeficiency, Autosomal Recessive, T Cell-Negative, B Cell-Negative, Nk Cell-Negative, Due To Adenosine Deaminase Deficiency and Severe Combined Immunodeficiency. Among its related pathways are purine nucleotides de novo biosynthesis and Metabolism of nucleotides. Gene Ontology (GO) annotations related to this gene include adenosine deaminase activity and purine nucleoside binding. An important paralog of this gene is ADAL.
UniProtKB/Swiss-Prot Summary for ADA Gene
Catalyzes the hydrolytic deamination of adenosine and 2-deoxyadenosine (PubMed:8452534, PubMed:16670267). Plays an important role in purine metabolism and in adenosine homeostasis. Modulates signaling by extracellular adenosine, and so contributes indirectly to cellular signaling events. Acts as a positive regulator of T-cell coactivation, by binding DPP4 (PubMed:20959412). Its interaction with DPP4 regulates lymphocyte-epithelial cell adhesion (PubMed:11772392). Enhances dendritic cell immunogenicity by affecting dendritic cell costimulatory molecule expression and cytokines and chemokines secretion (By similarity). Enhances CD4+ T-cell differentiation and proliferation (PubMed:20959412). Acts as a positive modulator of adenosine receptors ADORA1 and ADORA2A, by enhancing their ligand affinity via conformational change (PubMed:23193172). Stimulates plasminogen activation (PubMed:15016824). Plays a role in male fertility (PubMed:21919946, PubMed:26166670). Plays a protective role in early postimplantation embryonic development (By similarity).
Deaminases are enzymes that catalyze the hydrolysis of C-NH2 bonds in amino compounds, producing ammonia. They are usually named after their substrate; two well known members of this group are adenosine deaminase and cytidine deaminase.