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TLS Online TPP Program

#Id: 8655

#Section 3: Genetics, Cellular and Molecular Biology #CELL CYCLE #Part B Pointers
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TLS Online TPP Program

#Id: 7952

#Section 3: Genetics, Cellular and Molecular Biology

Two N- acetylglucosamine (GlcNAc) and five mannose residues are added one at a time to a dolichol phosphate on the cytosolic face of the ER membrane
TLS Online TPP Program

#Id: 7951

#Section 3: Genetics, Cellular and Molecular Biology

First sugar residue is attached to dolichol by a high-energy pyrophosphate linkage & the other sugars are added by glycosidic bonds
TLS Online TPP Program

#Id: 7950

#Section 3: Genetics, Cellular and Molecular Biology

Prior to transfer to a nascent chain in the lumen of the  ER, the oligosaccharide precursor is assembled on amembrane- attached anchor called dolichol phosphate, a longchain polyisoprenoid lipid
TLS Online TPP Program

#Id: 7949

#Section 3: Genetics, Cellular and Molecular Biology

A branched oligosaccharide containing
3 glucose (Glc)
9 mannose (Man)
2 N-acetylglucosamine (GlcNAc)
Glc3Man9(GlcNAc)2
TLS Online TPP Program

#Id: 7948

#Section 3: Genetics, Cellular and Molecular Biology

Biosynthesis of all N-linked oligosaccharides begins in the rough ER with a preformed oligosaccharide precursor containing 14 residues.
TLS Online TPP Program

#Id: 7947

#Section 3: Genetics, Cellular and Molecular Biology

N-linked oligosaccharides
carbohydrate chains attached to the amide nitrogen of asparagine