IndraLab
Statements
reach
"The C4-symmetric reconstruction did not yield an interpretable map of the toxin, but clear ion densities in IS2, IS3 and IS4 were visible.Selvakumar et al. (2022) also obtained a structure of ShK bound to Kv1.3, but in this case the ShK toxin was fused to a Fab fragment; this yielded an asymmetric ligand large enough to allow C1 reconstruction from the cryo-EM images."
sparser
"Contrasting the binding modes of ShK and ShK-K-amide ( xref ), it is seen that Arg1 is already involved in binding of ShK to Kv1.3 so the mutation leads to some rearrangement among the contact pairs but their number and quality as measured by the contact distances are preserved."