>4y284 (4:) observed residues (from ATOM records)
kkgewlpglaspgyltgslpgdngfdplglaedpenlrwfvqaelvngrwamlgvagmll
pevftsigiinvpkwydagkeeyfassstlfviefilshyveirrwqdiknpgsvnqdpi
fkqyslpagevgypggifnplnfaptleakekeiangrlamlaflgfiiqhnvtgkgpfd
nllqhisdpwhntivqtl