Recombinant Human Cation transport regulator-like protein 1 (CHAC1)

Uniprot Id

Q9BUX1

Target Species

Human

Target Name

CHAC1

Target Full Name

Glutathione-specific gamma-glutamylcyclotransferase 1

Target Function

Catalyzes the cleavage of glutathione into 5-oxo-L-proline and a Cys-Gly dipeptide. Acts specifically on glutathione, but not on other gamma-glutamyl peptides. Glutathione depletion is an important factor for apoptosis initiation and execution. Acts as a pro-apoptotic component of the unfolded protein response pathway by mediating the pro-apoptotic effects of the ATF4-ATF3-DDIT3/CHOP cascade. Negative regulator of Notch signaling pathway involved in embryonic neurogenesis: acts by inhibiting Notch cleavage by furin, maintaining Notch in an immature inactive form, thereby promoting neurogenesis in embryos.

Target Subcellular Location

Cytoplasm, cytosol. Golgi apparatus, trans-Golgi network.

Target Protein Families

Gamma-glutamylcyclotransferase family, ChaC subfamily

Target Synonyms

Blocks Notch protein; Botch; Cation transport regulator like protein 1; Cation transport regulator-like protein 1; ChaC; ChaC cation transport regulator homolog 1; ChaC cation transport regulator like 1; chac1; CHAC1_HUMAN; Gamma GCT acting on glutathione homolog 1; Gamma-GCG 1; Glutathione-specific gamma-glutamylcyclotransferase 1

Target Background

This gene encodes a member of the gamma-glutamylcyclotransferase family of proteins. The encoded protein has been shown to promote neuronal differentiation by deglycination of the Notch receptor, which prevents receptor maturation and inhibits Notch signaling. This protein may also play a role in the unfolded protein response, and in regulation of glutathione levels and oxidative balance in the cell. Elevated expression of this gene may indicate increased risk of cancer recurrence among breast and ovarian cancer patients.