Diminished activity of the first N-glycosylation enzyme, dolichol-P-dependent N-acetylglucosamine-1-P transferase (GPT), gives rise to mutant phenotypes in yeast.

Abstract excerpt

The enzyme which initiates the dolichol pathway of protein N-glycosylation, dolichol-P-dependent N-acetylglucosamine-1-P transferase (GPT), is encoded by the ALG7 gene. Essential for viability, ALG7 has been evolutionarily conserved and shown to be involved in a variety of functions. ALG7 is an early growth-response gene in yeast, and downregulation of ALG7 expression results in diminished N-glycosylation and...

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