3crd
From Proteopedia
NMR STRUCTURE OF THE RAIDD CARD DOMAIN, 15 STRUCTURES
Structural highlights
Disease[CRADD_HUMAN] Defects in CRADD are the cause of mental retardation autosomal recessive type 34 (MRT34) [MIM:614499]. A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period. MRT34 is a non-syndromic form. Affected individuals have mildly delayed development and significantly impaired cognitive function, precluding independent living and self-care. Speech is rudimentary, but articulate; autism is not present.[1] Function[CRADD_HUMAN] Apoptotic adaptor molecule specific for caspase-2 and FASL/TNF receptor-interacting protein RIP. In the presence of RIP and TRADD, CRADD recruits caspase-2 to the TNFR-1 signalling complex. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedApoptosis requires recruitment of caspases by receptor-associated adaptors through homophilic interactions between the CARDs (caspase recruitment domains) of adaptor proteins and prodomains of caspases. We have solved the CARD structure of the RAIDD adaptor protein that recruits ICH-1/caspase-2. It consists of six tightly packed helices arranged in a topology homologous to the Fas death domain. The surface contains a basic and an acidic patch on opposite sides. This polarity is conserved in the ICH-1 CARD as indicated by homology modeling. Mutagenesis data suggest that these patches mediate CARD/CARD interaction between RAIDD and ICH-1. Subsequent modeling of the CARDs of Apaf-1 and caspase-9, as well as Ced-4 and Ced-3, showed that the basic/acidic surface polarity is highly conserved, suggesting a general mode for CARD/CARD interaction. Solution structure of the RAIDD CARD and model for CARD/CARD interaction in caspase-2 and caspase-9 recruitment.,Chou JJ, Matsuo H, Duan H, Wagner G Cell. 1998 Jul 24;94(2):171-80. PMID:9695946[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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