|Detection of Human CHIP/STUB1 by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and MCF‑7 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human CHIP/STUB1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4685) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for CHIP/STUB1 at approximately 39 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.|
STUB1 (STIP1 homology and U-box-containing protein 1, also known as C-terminus of Hsc70-interacting protein, CHIP) is a 35 kDa ubiquitin ligase that participates in intracellular protein folding/refolding and degradation. It is highly expressed in striated muscle. STUB1/CHIP may complex with the molecular chaperones Hsp70 and Hsp90, or act by itself. In either event, it regulates protein stability and ubiquitination. Human STUB1/CHIP is 303 amino acids (aa) in length. It contains one TPR domain (aa 27‑127) plus a C-terminal U-Box (aa 226‑299). Its TRP domain interacts with heat shock proteins, while the U-Box participates in ubiquitination. There is one isoform that shows an alternate start site at Met73. Human and mouse STUB1 are 97% aa identical.
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.
The document you requested is not available online. Please enter the Catalog Number and Lot Number below to have a document emailed to you at the address provided