Recombinant Human E3 Ubiquitin-Protein Ligase CHIP/CHIP

Cat.No.: C115

Description
Recombinant Human E3 Ubiquitin-Protein Ligase CHIP is produced by our E.coli expression system and the target gene encoding Met1-Tyr303 is expressed.
Accession #:Q9UNE7
Known as:E3 Ubiquitin-Protein Ligase CHIP; Antigen NY-CO-7; CLL-Associated Antigen KW-8; Carboxy Terminus of Hsp70-Interacting Protein; STIP1 Homology and U Box-Containing Protein 1; STUB1; CHIP
Formulation
Supplied as a 0.2 μm filtered solution of PBS, pH7.4.
Quality Control
Purity:Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin:Less than 0.1 ng/?g (1 EU/?g) as determined by LAL test.
Storage
Store at < -20°C, stable for 6 months after receipt.
Please minimize freeze-thaw cycles.
Background
E3 Ubiquitin-Protein Ligase CHIP is a cytoplasmic protein. CHIP is highly expressed in skeletal muscle, heart, pancreas, brain and placenta. CHIP interacts with the molecular chaperones Hsc70-Hsp70 and Hsp90 through its TPR domain; lead to in client substrate ubiquitylation and degradation by the proteasome. CHIP targets misfolded chaperone substrates towards proteasomal degradation. CHIP mediates transfer of non-canonical short ubiquitin chains to HSPA8 that have no effect on HSPA8 degradation. CHIP plays a role in base-excision repair: catalyzes polyubiquitination by amplifying the HUWE1/ARF-BP1-dependent monoubiquitination and leading to POLB-degradation by the proteasome. It also may regulate the receptor stability and activity through proteasomal degradation.

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