Many WIRS Proteins Bind the WRC. (A) WIRS ligands that bind WRC in pull-down assays with WIRS highlighted in orange. (B) Coomassie-blue-stained gels show proteins selectively retained by immobilized 2MBP-ΔWRC (WT for wild-type, AW for R106A/ G110W-Abi2). (B) shows verified cytoplasmic tails of WIRS proteins, Arrows denote bound proteins. Asterisks indicate protein bound to the WRC independent of the WIRS interaction.