2o71
From Proteopedia
Crystal structure of RAIDD DD
Structural highlights
DiseaseCRADD_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] FunctionCRADD_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 PubMedCaspase-2 is implicated in stress-induced apoptosis that acts as an upstream initiator of mitochondrial permeabilization. Recent studies have shown that caspase-2 activation requires a molecular complex known as the PIDDosome comprising the p53-inducible protein PIDD, the adapter protein RAIDD and caspase-2. RAIDD has an N-terminal caspase recruitment domain (CARD) that interacts with the CARD of caspase-2 and a C-terminal death domain (DD) that interacts with the DD in PIDD. As a first step towards elucidating the molecular mechanisms of caspase-2 activation, we report the crystal structure of RAIDD DD at 2.0 A resolution. The high-resolution structure reveals important features of RAIDD DD that may be important for DD folding and dynamics and for assembly of the PIDDosome. Crystal structure of RAIDD death domain implicates potential mechanism of PIDDosome assembly.,Park HH, Wu H J Mol Biol. 2006 Mar 24;357(2):358-64. Epub 2006 Jan 11. PMID:16434054[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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