>4y5vF (F:) observed residues (from ATOM records)
pkfeskaallaargpeellcfterledlvcfweeaapgqysfsyqledepwklcrlhqap
targavrfwcslptadtssfvplelrvtaasgapryhrvihinevvlldapvglvarlae
sghvvlrwlpppetpmtshiryevdvsagqsvqrveilegrtecvlsnlrgrtrytfavr
armaepsfggfwsawsepvslltpsd