Evidence that residues -15 to -46 of the haemolysin secretion signal are involved in early steps in secretion, leading to recognition of the translocator.

Abstract excerpt

We previously identified three well-dispersed mutations, E978-K, F989-L and D1009-R within the haemolysin A signal region, located at positions -46, -35 and -15, with respect to the C-terminus, respectively. Each mutation reduces the efficiency of secretion two- to threefold leaving 30-45% of the wild-type activity. We have constructed by in vitro manipulations double mutants of HlyA carrying all combinations of...

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