9F2W | pdb_00009f2w

Cryo-EM structure of the I923V MDA5-dsRNA filament in complex with ATP


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyRecA-like P-loop NTPases 8103697 3002019 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyMss4-like 8103694 3001994 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyRecA-like P-loop NTPases 8103696 3002019 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase. Domain
PF04851Type III restriction enzyme, res subunit (ResIII)Type III restriction enzyme, res subunit- Family
PF11648C-terminal domain of RIG-I (RIG-I_C-RD)C-terminal domain of RIG-IThis family of proteins represents the regulatory domain RD of RIG-I, a protein which initiates a signalling cascade that provides essential antiviral protection for the host. The RD domain binds viral RNA, activating the RIG-I ATPase by RNA-dependen ...This family of proteins represents the regulatory domain RD of RIG-I, a protein which initiates a signalling cascade that provides essential antiviral protection for the host. The RD domain binds viral RNA, activating the RIG-I ATPase by RNA-dependent dimerisation. The structure of RD contains a zinc-binding domain and is thought to confer ligand specificity [1].
Domain
PF18119RIG-I receptor C-terminal domain (RIG-I_C)RIG-I receptor C-terminal domainThis is the C-terminal domain of Innate Immune Pattern-Recognition Receptor RIG-I present in homo sapiens. RIG-I is a key cytosolic pattern-recognition receptors of the vertebrate innate immune system that form the first line of defense against RNA v ...This is the C-terminal domain of Innate Immune Pattern-Recognition Receptor RIG-I present in homo sapiens. RIG-I is a key cytosolic pattern-recognition receptors of the vertebrate innate immune system that form the first line of defense against RNA viral infection. RNA binding to RIG-I is mediated both by the C-terminal domain and by the helicase domain. The C-terminal domain specifically binds the 5'triphosphate end with a 10-fold higher affinity compared to 5'OH-dsRNA [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Interferon-induced helicase C domain-containing protein 1
B [auth X]RNA (5'-R(P*CP*AP*AP*GP*CP*CP*GP*AP*GP*GP*AP*GP*AP*U)-3')---
C [auth Y]RNA (5'-R(P*AP*UP*CP*UP*CP*CP*UP*CP*GP*GP*CP*UP*UP*G)-3')---