Hematopoietically-expressed homeobox protein HHEX is a protein that in humans is encoded by the HHEX gene and also known as Proline Rich Homeodomain protein PRH. This gene encodes a member of the homeobox family of transcription factors, many of which are involved in developmental processes. Expression in specific hematopoietic lineages suggests that this protein may play a role in hematopoietic differentiation but the expression of this protein is not limited to hematopoietic cells.
Background References
1. Guo Y et al. CK2-induced cooperation of HHEX with the YAP-TEAD4 complex promotes colorectal tumorigenesis. Nat Commun. 2022 Aug
2. Xu Z et al. HHEX suppresses advanced thyroid cancer by interacting with TLE3. Mol Cell Endocrinol. 2023 Aug
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722753) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Hex was immunoprecipitated from 0.2 mg MCF7 cell lysate with HA722753 at 2 µg/10 µl beads. Western blot was performed from the immunoprecipitate using HA722753 at 1/1,000 dilution. Mouse anti Rabbit IgG heavy chain (Fc) secondary antibody (M1003-7) at 1/100,000 dilution was used for 1 hour at room temperature.
Lane 1: MCF7 cell lysate (input) Lane 2: HA722753 IP in MCF7 cell lysate Lane 3: Rabbit IgG instead of HA722753 in MCF7 cell lysate