>1yy4B (B:) SEQRES residues
lspeqlvltlleaepphvlisrpsapfteasmmmsltkladkelvhmiswakkipgfvel
slfdqvrllescwmevlmmglmwrsidhpgklifapdlvldrdegkcvegileifdmlla
ttsrfrelklqhkeylcvkamillnssmyplvtatqdadssrklahllnavtdalvwvia
ksgissqqqsmrlanllmllshvrhasnkgmehllnmkcknvvpvydlllemlnahvlrg
ckssitgsecspaedskskegsqnpqsq