Which of the following is NOT used as a biopesticide?
Which of the following is NOT used as a biopesticide?
Select an option to attempt
Correct Answer: Option B
Explanation
Protein glycosylation occurs in two compartments: (1) Endoplasmic Reticulum (ER): N-linked glycosylation — a pre-assembled 14-sugar oligosaccharide () is transferred en bloc from a dolichol-PP carrier to the amide nitrogen of Asn in the sequon Asn-X-Ser/Thr (where XPro) by oligosaccharyltransferase (OST) complex. This is co-translational (occurs as the protein enters the ER lumen). Trimming by glucosidases and mannosidases also begins in ER. (2) Golgi apparatus: O-linked glycosylation — sugars added one at a time by specific glycosyltransferases to the hydroxyl group of Ser or Thr (no sequon required). Further processing/modification of N-linked glycans also occurs in Golgi (conversion of high-mannose to complex type). Lysosomes and mitochondria are NOT sites of glycosylation.