Observation of partially degraded products by size exclusion chromatography. Chromatograms determined for the substrates (A) GFP-17-MJ0366-ssrA, (B) GFP-23-MJ0366-ssrA, (C) GFP-30-MJ0366-ssrA, (D) GFP-36-MJ0366-ssrA, (E) GFP-47-MJ0366-ssrA, (F) GFP-58-MJ0366-ssrA, (G) GFP-78-MJ0366-ssrA, and (H) GFP-117-MJ0366-ssrA, incubated by 2 h with ClpXP plus ATP (green line) or in the absence of ATP (dotted line). The apparent molecular mass in kDa is shown over each peak. In parentheses is the theoretical molecular mass calculated by using the sequence for each substrate.