What sugar is usually removed from the N-linked core oligosaccharide chains on proteins in the Golgi complex as opposed to the glucose residues trimmed off in the ER?
A)glucose
B)galactose
C)mannose
D)sialic acid
E)fucose

Question

Quizplus · Accepted Answer

Mannose residues are usually trimmed off the N-linked core oligosaccharide chains on proteins in the Golgi complex. Glucose residues, on the other hand, are trimmed off in the ER. Galactose, sialic acid, and fucose residues can also be added or removed on the oligosaccharide chains in the Golgi complex, but mannose is the sugar that is most commonly removed.

What Sugar Is Usually Removed from the N-Linked Core Oligosaccharide