Caspase recruitment domain-containing protein 18, also known as CARD18, is a member of the death-domain-fold superfamily that is induced by proinflammatory stimuli. It consists essentially only of a CARD, inhibits generation of IL-1b by interacting with caspase-1 and preventing association with RIP 2. The association of CARD18 with caspase-1 is facilitated by the charge-charge interactions between the prodomain of caspase-1 and the surface charge of CARD18. Recombinant protein corresponding to aa1-90 from human CARD18, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~12.3kD (110aa) Amino Acid Sequence: MGSSHHHHHH SSGLVPRGSH MADQLLRKKR RIFIHSVGAG TINALLDCLL EDEVISQEDM NKVRDENDTV MDKARVLIDL VTGKGPKSCC KFIKHLCEED PQLASKMGLH Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.