Fig. 4.
Effect of Reg1 deletions on interaction with Glc7. (A) Reg1 forms a complex with Glc7. Protein extracts were prepared from cells expressing either untagged (MSY1030) or HA-tagged Glc7 (MSY1028) and untagged or V5-tagged Reg1 as indicated. Proteins were pulled down with HA-beads, eluted in SDS sample buffer, and probed by western blotting with V5 antibodies (top panel). (B) Protein extracts were prepared from cells expressing either wild type V5-tagged Reg1 (lanes 1 and 2) or the C2 and C3 deletion mutants. (C) Protein extracts were prepared from cells expressing either wild type V5-tagged Reg1 (lanes 1 and 2), the C1 or N1 deletion mutants or the Reg1-IF point mutation.