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Degradation of the nAChRbp peptide. Tris‐tricine sodium dodecylsulphate‐polyacrylamide gel electrophoresis (SDS‐PAGE) showing degradation of the nAChRbp peptide by soil water (a) and the digestion of the peptide (Pep) when incubated in pancreatin (Pc) (b). The M r of the peptide is indicated (*).
