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| 1. |
Assembly
of the precursor
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oligosaccharide…
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IMPORTANT
POINTS:
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– |
Assembly takes
place on the
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carrier lipid
dolichol, anchored in
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the ER membane.
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A pyrophosphate
bridge joins
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the 1st
sugar to the dolichol.
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Sugars are added
singly and
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sequentially.
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After the two
N-acetylglucos-
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amines are
added, the assembly
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flips from the
cytosolic side to
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the ER lumen.
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– |
Nine mannose and
three
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glucose
molecules are added,
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totaling 14
sugars.
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