June Lee was appointed MyoKardia Inc.'s COO, joining Radhika Tripuraneni, who was appointed as the company's vice president of medical affairs.

Lee, who will be establishing MyoKardia's portfolio planning function, was on the faculty of the University of California, San Francisco.

Tripuraneni was most recently vice president of medical affairs at Synageva BioPharma, which later became Alexion Pharmaceuticals.