The enzyme N-acetylglucosamine phosphotransferase is responsible for ____________(a) mannose phosphorylation(b) sucrose phosphorylation(c) tethering Golgi stack(d) modification of integral proteinsI had been asked this question in an international level competition.I'm obligated to ask this question of Cytoplasmic Membrane Systems topic in chapter Cytoplasmic Membrane Systems of Cell Biology

The enzyme N-acetylglucosamine phosphotransferase is responsible for _

1.	The enzyme N-acetylglucosamine phosphotransferase is responsible for ____________(a) mannose phosphorylation(b) sucrose phosphorylation(c) tethering Golgi stack(d) modification of integral proteinsI had been asked this question in an international level competition.I'm obligated to ask this question of Cytoplasmic Membrane Systems topic in chapter Cytoplasmic Membrane Systems of Cell Biology
Answer» Right choice is (a) mannose phosphorylation To explain I WOULD say: Mannose 6-phosphate residues are present on the LYSOSOMAL ENZYMES that direct these PROTEINS to the lysosomes after their synthesis from Golgi complex.N-acetylglucosamine phosphotransferase ADDS the mannose residues on lysosomal enzymes.

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