Crystal Structure of Human Ips-1 Caspase Activation Recruitment Domain
Potter, J.A., Randall, R.E., Taylor, G.L.(2008) BMC Struct Biol 8: 11
- PubMed: 18307765 
- DOI: https://doi.org/10.1186/1472-6807-8-11
- Primary Citation of Related Structures:  
2VGQ - PubMed Abstract: 
IPS-1/MAVS/VISA/Cardif is an adaptor protein that plays a crucial role in the induction of interferons in response to viral infection. In the initial stage of the intracellular antiviral response two RNA helicases, retinoic acid inducible gene-I (RIG-I) and melanoma differentiation-association gene 5 (MDA5), are independently able to bind viral RNA in the cytoplasm. The 62 kDa protein IPS-1/MAVS/VISA/Cardif contains an N-terminal caspase activation and recruitment (CARD) domain that associates with the CARD regions of RIG-I and MDA5, ultimately leading to the induction of type I interferons. As a first step towards understanding the molecular basis of this important adaptor protein we have undertaken structural studies of the IPS-1 MAVS/VISA/Cardif CARD region.
Organizational Affiliation: 
Centre for Biomolecular Sciences, University of St Andrews, St Andrews, Fife, KY16 9ST, UK. jap7@st-andrews.ac.uk