(A, B) Cartoon representations of the Jak2-WT and Jak2-V617F JH2 domain homology models, respectively, generated using SWISS MODEL and visualized with Chimera. (C, D) The distances between F594 (white), F595 (yellow) and 617 (magenta) were lesser in Jak2-V617F when compared to Jak2-WT. All the distances were calculated using the Structural Analysis tools in Chimera.