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. 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.
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Protein Aliases: (2'-5')oligo(A) synthetase 2; (2-5')oligo(A) synthase 2; 2'-5'-oligoadenylate synthase 2; 2'-5'-oligoadenylate synthetase 2, 69/71kDa; 2-5A synthase 2; A synthetase 2; MGC78578; p69 OAS / p71 OAS; p69OAS / p71OAS
Gene Aliases: OAS2
UniProt ID: (Human) P29728
Entrez Gene ID: (Human) 4939
Molecular Function: nucleotidyltransferase