ANAT 262 Lecture Notes - Lecture 13: Golgi Apparatus, Glycosyl Acceptor, Glycosyl Donor
15 Jul 2016
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Document Summary
The golgi resembles a stack of pancakes and is polar. Cargo enters at the cis face and exits at the trans face (trans golgi network looks like they are peeling off the golgi ). Golgi, the cargoes can be modified by enzymes. Part of the reason for golgi structure is to compartmentalize these functions. Golgi stacks (cisterna) may have different values of cisterna in different cells. Glycosylation is the reaction in which a carbohydrate, (i. e. a glycosyl donor) is attached to a hydroxyl or other functional group of another molecule (a glycosyl acceptor). In biology glycosylation refers to the enzymatic process that attaches glycans to proteins, lipids, or other molecules. Glycosylation types are classified according to the identity of the atom of the amino acid which binds the carbohydrate chain: c-linked, n-linked, o-linked. C-glycosylation and initial n-glycosylation take place in the er.
