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Choose the interaction type:

Choose Amino Acid 1:

Choose Atom 1:

Choose SecStr of residue 1:



Choose Amino Acid 2:

Choose Atom 2:

Choose SecStr of residue 2:


Is this interaction in one contiguous unit of SecStr?


contiguous non-contiguous

Is the Prop wash of the two side chains small, intermediate, or large?


small intermediate large

If the two residues are in h-bonded beta strands, are the strands parallel or anti-parallel?


parallel anti-parallel