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Figure 3.
Fig. 3. Comparison of the  and  aspartyl
isomers of MCoTI-II. a, structure of and aspartic
acid residues and sequential NOEs expected to be observed in the
-Asp form.
b, comparison of the -proton
chemical shifts of the two isomers of MCoTI-II. The fact that
the differences occur only near residue Asp-5 suggests that
isomerization of this residue ( / aspartic
acid) is responsible for the differences between the two
isolated peptides.
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