Figure 2
From: Connexin43 Functions as a Novel Interacting Partner of Heat Shock Cognate Protein 70
Interaction Domains between Cx43 and Hsc70.
(a) A schematic representation of GST-Cx43CT fusion proteins used as a ligand. Consensus protein domains and regions with putative signaling functions are indicated. Abbreviations in Cx43: TM1-4, transmembrane domains 1–4; JM, juxtamembrane domain that binds microtubules; Y265, Src phosphorylation site; PP, proline-rich sequence that binds the SH3 domain of v-Src; DLEI, carboxy-terminal sequence involved in ZO-1 binding. (b) Identification of Hsc70-binding domain in Cx43. Whole cell lysates of HuH-7 cells and various forms of the GST-Cx43CT fusion proteins were used for GST pulldown assays. Binding experiments and western blotting (WB) were carried out as described in Figure 1b. (c) A schematic representation of Hsc70 and its deletion mutants used for overexpression. (d) Identification of Cx43 binding domain in Hsc70. Expression vectors encoding various Hsc70s were transfected into HuH-7 cells and binding experiments were carried out as described in Figure 1B. The immunocomplexes were analyzed by western blotting (WB) using anti-T7 antibody.
