>1yc0A (A:) observed residues (from ATOM records)
acgrrhkkiiggssslpgshpwlaaiyigdsfcagslvhtcwvvsaahcfshspprdsvs
vvlgqhffnrttdvtqtfgiekyipytlysvfnpsdhdlvlirlkkkgdrcatrsqfvqp
iclpepgstfpaghkcqiagwghldenvsgyssslrealvplvadhkcsspevygadisp
nmlcagyfdcksdacqgdsggplacekngvaylygiiswgdgcgrlhkpgvytrvanyvd
windrir