Structural and mutational studies on the importance of oligosaccharide binding for the activity of yeast PNGase.

Abstract excerpt

Peptide:N-glycanase (PNGase) is an important component of the endoplasmic reticulum-associated protein degradation pathway in which it de-glycosylates misfolded glycoproteins, thus facilitating their proteasomal degradation. PNGase belongs to the transglutaminase superfamily and features a Cys, His, and Asp catalytic triad, which is essential for its enzymatic activity. An elongated substrate-binding groove...

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