Macromolecule Annotations for the Entities in PDB 4IG8

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF01909 NTP_transf_2 Nucleotidyltransferase domain Family
A PF10421 OAS1_C 2'-5'-oligoadenylate synthetase 1, domain 2, C-terminus Domain This is the largely alpha-helical, C-terminal half of 2'-5'-oligoadenylate synthetase 1, being described as domain 2 of the enzyme and homologous to a tandem ubiquitin repeat. It carries the region of enzymic activity between 320 and 344 at the extreme C-terminal end [1]. Oligoadenylate synthetases are antiviral enzymes that counteract vial attack by degrading viral RNA. The enzyme uses ATP in 2'-specific nucleotidyl transfer reactions to synthesise 2'.5'-oligoadenylates, which activate latent ribonuclease, resulting in degradation of viral RNA and inhibition of virus replication [2]. This domain is often associated with NTP_transf_2 Pfam:PF01909. PFAM PF10421

Gene Product Annotation Gene Ontology Consortium Homepage

Chains Polymer Molecular Function Biological Process Cellular Component
A 2'-5'-oligoadenylate synthase 1 (4IG8:A)
  • none
B RNA (5'-R(*GP*GP*CP*UP*UP*UP*UP*GP*AP*CP*CP*UP*UP*UP*AP*UP*GP*C)- 3') (4IG8:B)
  • none
  • none
  • none
C RNA (5'-R(*GP*CP*AP*UP*AP*AP*AP*GP*GP*UP*CP*AP*AP*AP*AP*GP*CP*C)- 3') (4IG8:C)
  • none
  • none
  • none

Protein Modification Annotation

Type PDB Residue Nr. Description