Contact: Janet Lathrop
University of Massachusetts at Amherst
Caption: Chien and Vass's recent work shows that in some bacteria, short forms of a specialized replication factor, the protein DnaX, are made by proteolysis, an unexpected finding and evidence of convergent evolution. Two forms are generated through radically different mechanisms, suggesting for the first time that both long and short forms are required for all bacteria.
Credit: Peter Chien, UMass Amherst
Usage Restrictions: None
Related news release: Biochemists find incomplete protein digestion is a useful thing for some bacteria