Raf is a ________ protein kinase at the top of the _______.

Question

Quizplus · Accepted Answer

The question is asking about a protein kinase at the top of a specific cascade. The MAP kinase cascade is a well-known signaling pathway involved in cell proliferation and differentiation. Raf is a serine/threonine protein kinase that activates downstream effectors such as MEK and ERK in the MAP kinase cascade. Option A is incorrect since tyrosine kinases are not involved in the MAP kinase cascade, and option C and D are incorrect because they mention the glucagon cascade, which is a different signaling pathway. Option E is incorrect because it mentions the apoptosis cascade, which is also unrelated to the MAP kinase cascade.

Raf Is a ________ Protein Kinase at the Top of the _______

Raf Is a __ Protein Kinase at the Top of the _