Function
Dock8 shares the same core domain arrangement as all other DOCK proteins, with a DHR2 domain which, in other proteins, contains GEF activity and a DHR1 domain known, in other proteins, to interact with phospholipids. In the YTH system Dock8 was reported to interact with both Rac1 and Cdc42. However, no stable interaction between Dock8 and these small G proteins was observed in a GST-pulldown assay. This may be due to the fact many DOCK-G protein interactions require the presence of adaptor proteins to stabilise the complex and thus facilitate nucleotide exchange.
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