>3kcnB (B:) observed residues (from ATOM records)
lnerillvdddysllntlkrnlsfdfevttcesgpealacikksdpfsvimvdmrmpgme
gteviqkarlispnsvylmltgnqdlttameavnegqvfrflnkpcqmsdikaainagik
qydlvtskeellkktfa