Retrograde transport of the mannosyltransferase Och1p to the early Golgi requires a component of the COG transport complex.

Abstract excerpt

The yeast COG complex has been proposed to function as a vesicle-tethering complex on an early Golgi compartment, but its role is not fully understood. COG complex mutants exhibit a dramatic reduction in Golgi-specific glycosylation and other defects. Here we show that a strain carrying a COG3 temperature-sensitive allele, cog3-202, clearly exhibited the glycosylation defect while exhibiting nearly normal...

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