>6ca6A (A:) observed residues (from ATOM records)
ivltqspgtlslspgdratlscratqsvggdyfawyqqrpgqsprlliygtsrraagipd
rfsgsgsgtdftltidrlepedfavyycrqyetsftfgpgtkvdikrtvaapsvfifpps
deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
skadyekhkvyacevthqglsspvtksfnrg