CLAN (NLR Family CARD Domain-containing Protein 4, CARD, LRR, and NACHT-containing Protein, Clan Protein, Caspase Recruitment Domain-containing Protein 12, Ice Protease-activating Factor, Ipaf, NLRC4, CARD12, CLAN1, IPAF, UNQ6189/PRO20215)

Ipaf (also known as Clan/CARD12) is a CARD domain containing protein. CARD (caspase-associated recruitment domain) proteins are key regulators of cell death, cell survival and cytokine production. In general CARD proteins are implicated in host defense against infection, environmental stress or cellular damage. CARD domains are found in the N-terminal pro-domains of certain caspases, a family of apoptotic and pro-inflammatory proteases, as well as in a diversity of other proteins including Ipaf/Clan/CARD12. CARD domains are homotypic protein interaction motifs that enable networks of proteins to communicate via CARD-CARD interactions. There are at least three major signaling pathways in which CARD proteins act: (1) Regulation of caspase activation in the context of apoptosis (2) Regulation of caspase activation in the context of inflammation (3) Regaultion of NF-kB activation in the context of innate or adaptive immune responses. As there is significant crosstalk between pathways that lead to caspase-mediated apoptosis or inflammation and pathways that result in NF-kB activation, it is logical that similar protein modules such as CARD domains are found repeatedly in proteins from all three pathways. Ipaf plays a role in regulating caspase-1 activity, which in turn mediates the maturation of inflammatory cytokines IL-1b and IL-18. In transfected cells, Ipaf has been shown to directly interact with procaspase-1 and induce proteolytic activation of procaspase-1 in transfected cells. On the flip side, macrophages from IPAF deficient mice failed to activate caspase-1 in response to Salmonella typhimurium infection underscoring the importance of IPAF in vivo. IPAF also interact with the pro-apoptotic adaptor protein ASC and co-expression of IPAF with ASC has been shown to induce NF-kB activation and apoptosis.\n\nApplications:\nSuitable for use in Western Blot, Immunohistochemistry and Immunoprecipitation. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1:1000-1:2000\nImmunohistochemistry (formalin fixed paraffin embedded): 1:1000-1:5000\nImmunoprecipitation: 1:50-1:200\nImmunohistochemistry: Frozen\nOptimal dilutions to be determined by the researcher.\n\nPositive Control: \nSpleen, lymphoid, CA cell lines\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

C5820-01C

Size

50ul

Applications

IHC, IP, WB

Hosts

Rabbit

Reactivities

Hum

Form

Supplied as a liquid, 0.05% sodium azide.

P Type

Pab

Purity

Serum

Isotype

IgG

References

1. Damiano JS and JC Reed. 2004. CARD proteins as therapeutic targets in cancer. Current Drug Targets 5:367-374. 2. Lu C, A Wang, L Wang, M Dorsch, TD Ocain, Y Xu. 2005. Nucleotide binding to CARD12 and its role in CARD12-mediated caspase-1 activation. Biochemical and Biophysical Research Communications 331:1114-1119.

Additional Info

Recognizes human CLAN. Species sequence homology: mouse.