Aliases for OAS2 Gene
External Ids for OAS2 Gene
Previous GeneCards Identifiers for OAS2 Gene
This gene encodes a member of the 2-5A synthetase family, essential proteins involved in the innate immune response to viral infection. The encoded protein is induced by interferons and uses adenosine triphosphate in 2'-specific nucleotidyl transfer reactions to synthesize 2',5'-oligoadenylates (2-5As). These molecules activate latent RNase L, which results in viral RNA degradation and the inhibition of viral replication. The three known members of this gene family are located in a cluster on chromosome 12. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
GeneCards Summary for OAS2 Gene
OAS2 (2'-5'-Oligoadenylate Synthetase 2) is a Protein Coding gene. Diseases associated with OAS2 include Microphthalmia With Limb Anomalies. Among its related pathways are Interferon gamma signaling and Innate Immune System. GO annotations related to this gene include RNA binding and transferase activity. An important paralog of this gene is OAS3.
UniProtKB/Swiss-Prot for OAS2 Gene
Interferon-induced, dsRNA-activated antiviral enzyme which plays a critical role in cellular innate antiviral response. In addition, it may also play a role in other cellular processes such as apoptosis, cell growth, differentiation and gene regulation. Synthesizes higher oligomers of 2-5-oligoadenylates (2-5A) from ATP which then bind to the inactive monomeric form of ribonuclease L (RNase L) leading to its dimerization and subsequent activation. Activation of RNase L leads to degradation of cellular as well as viral RNA, resulting in the inhibition of protein synthesis, thus terminating viral replication. Can mediate the antiviral effect via the classical RNase L-dependent pathway or an alternative antiviral pathway independent of RNase L.