A single point mutation in
the conserved ATP-binding motif of Rhp51 impairs its DNA repair
activity. (A) Comparison of amino acid sequences
of conserved ATP-binding motif A from E.coli RecA, S.cerevisiae Rad51, human Rad51 and S.pombe Rhp51.
(B and C) rhp51+ and rhp51 K155A carried by multicopy plasmids were
subjected to survival tests to determine their complementation of
MMS (B) and UV (C) sensitivity of rhp51Δ cells.
Diamond, wild-type cells with vector Splac551; square, rhp51Δ with Splac551; triangle, rhp51Δ with p51.551; circle, rhp51Δ with p51.551 K155A.