1.

Which of the following serves as a specific binding site for the proteins involved in membrane fusion during exocytosis?(a) Phosphatidylinositol(b) Phosphatidylinositol 4, 5-biphosphate(c) Phosphatidylinositol 3, 5-biphosphate(d) Phosphatidylinositol 3, 4-biphosphateI have been asked this question in an interview for internship.My question is based upon Lipids as Signals, Cofactors, and Pigments in chapter Lipids, Biological Membranes and Transport of Biochemistry

Answer»

The correct option is (b) Phosphatidylinositol 4, 5-biphosphate

Best EXPLANATION: Phosphatidylinositol 4, 5-biphosphate in the cytoplasmic face of PLASMA MEMBRANES serves as a specific BINDING site for certain cytoskeletal proteins and for some SOLUBLE proteins involved in membranes fusion during exocytosis.



Discussion

No Comment Found

Related InterviewSolutions