RNase H activity gel analysis
of epitope-tagged RNH1 constructs. Lane 1, wild-type C.fasciculata whole cell extract. The wild-type 45 and 38 kDa activities are indicated by arrows. Lane 2, rnh1Δ whole cell extract. Lane 3, whole cell extract from the rnh1Δ strain transformed
with pRNH1-Phleo. Lane 4, whole cell extract from the rnh1Δ strain
transformed with pRNH1-STOP showing an activity migrating at ∼46 kDa. Lane 5, whole cell extract from the rnh1Δ strain transformed with
pRNH1-GTG showing an activity migrating at ∼53
kDa. The RNase H activity of the SSE1 nuclease is not visible in
this exposure.