... at the end of the catalytic domain ()5to)1) and in the t peptide, at the beginning (1 to 6), in the middle (19 or 21), or near the end (34, 35 or 36), in the presence or in the absence of the ... we analyse the structural basis for the hydrophobic and quaternary interactions of the t pep-tide. In particular, we ask whether hydrophobic interactions result from the structure of the peptide ... the case of human AChE [39] and rat AChE [40]. Therefore, the presence of dimers, asobserved in the case of the other mutants, indicates the formation of an intercatenary disulfide bond.In the...