... of the amyloid b-peptideFEBS Journal 27 6 (20 09) 126 6– 128 1 ª 20 09 The Authors Journal compilation ª 20 09 FEBS 126 7plasmids encoding Ab(M1– 42) with the point muta-tions F19P, A21G, E22G, E22K, ... and that Ab(L1–40) is the dominant protein in the inclusion bodies. In contrast, the major protein in the Ab(M1– 42) inclusions was not Ab, butwas the small heat shock protein IbpB (accession num-ber ... of inclusion bodies from bacteria expressingAb(M1–40) with wild-type (wt) sequence orwith the following point mutations: A21G,E22G, E22K, E22Q and D23N. The netcharge of each peptide is indicated...