>4lkcA (A:) observed residues (from ATOM records)
aiqltqspsslsasvgdrvtitcrasqgissalawyqqkpgkapklliydasslesgvps
rfsgsgsgtdftltisslqpedfatyycqqfnsylitfgqgtrleikrtvaapsvfifpp
sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
lskadyekhkvyacevthqglsspvtksfnrge