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Details on Person IQCE and EFCAB7 are ciliary proteins that are required to re...

Class:IdSummation:5633052
_displayNameIQCE and EFCAB7 are ciliary proteins that are required to re...
_timestamp2014-10-29 21:34:57
created[InstanceEdit:5633054] Rothfels, Karen, 2014-10-29
modified[InstanceEdit:5633076] Rothfels, Karen, 2014-10-29
textIQCE and EFCAB7 are ciliary proteins that are required to restrict the EVC2:EVC complex to the 'EVC region' at the base of the cilium, just distal to the transition zone (Pusapati et al, 2014). EVC2 and EVC are transmembrane proteins that form a ciliary-localized complex that is a positive regulator of Hh signal transduction. The EVC2:EVC complex appears to act downstream of both SMO ciliary localization and its activation by CSNK1A1 and ADRBK1, and is required for the dissociation of the GLI:SUFU complex at the ciliary tip, although the mechanism for this is not known (Blair et al, 2011; Dorn et al, 2012; Capparos-Martin et al, 2013; Pusapati et al, 2014). EVC2 interacts with the IQCE:EFCAB7 subcomplex through the so called 'W-peptide', a stretch of amino acids in the intracellular tail that is deleted in the ciliopathy Weyers Acrofacial Dysostosis. Deletion of the W-peptide results in mislocalization of EVC2 throughout the length of the cilium, rather than being concentrated in the 'EVC zone' (Pusapati et al, 2014; Dorn et al, 2012; Capparos-Martin et al, 2011). EVC2:EVC localization to the EVC region, mediated by the IQCE:EFCAB7 complex and the W-peptide, is required for the Hh-dependent activation of full-length GLI2, but does not appear to critical for the regulation of GLI3R levels, suggesting a bifurcation of the pathway (Pusapati et al, 2014).
(summation)[Reaction:5633051] EFCAB7:IQCE binds EVC2:EVC [Homo sapiens]
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