James A. Hoch is a microbiologist who is the head of the Division of Cellular Biology in the Department of Molecular and Experimental Medicine at the Scripps Research Institute.TSRI FacultyTSRI - News & Views In the last 40 years his work has focused on dissecting the signal transduction mechanism that controls sporulation in Bacillus subtilis. He introduced the widely used phrase 'phosphorelay' to describe the transfer of phosphoryl groups between the two proteins involved in bacterial signal transduction that comprise the so-called two-component system.Cell - Initiation of sporulation in B. subtilis is controlled by a multicomponent phosphorelay
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