>5y5qC (C:) observed residues (from ATOM records)
dssasvvfmrfapptalpprratpgsvaydlfpseemdiepmglakistgygidkfpdgc
ygqivsrsgmtwknntsvptgtinvdyrgelkvilrnhsaeksvpirkgtsiaqliflry
cdveeeqivyirtiidsssk