which-step-in-the-jak-stat-pathway-involves-the-phosphorylation-of-the-cytokine-

Question

Which step in the JAK-STAT pathway involves the phosphorylation of the cytokine receptor?

Accepted Answer

Step 3: Phosphorylation of the cytokine receptor by JAK2.

Answer

Step 7: Transcriptional regulation by STAT5.

Answer

Step 5: Phosphorylation of STAT5.

Answer

Step 1: Ligand binding and receptor dimerization.