Fig. 5.

Assignment of a hendecad repeat (A) to the M2-TM sequence based on the structure of racemic M2-TM/LCP produces a close match with observed core and flanking side chains, whereas assignment of a heptad repeat (B) to the same sequence causes core positions to drift away from the interhelical interface. Distances between side-chain centers-of-mass are reported in angstroms (Å). Sequence positions assigned according to hendecad and heptad repeats are denoted by asterisks below the M2-TM sequence. Core positions at either end of the antiparallel interface are highlighted in both A and B, and below the M2-TM sequence.