>1y3tA (A:) observed residues (from ATOM records)
cthslpkekmpyllrsgegerylfgrqvatvmangrstgdlfeivllsggkgdafplhvh
kdthegilvldgkleltldgeryllisgdyanipagtphsyrmqshrtrlvsytmkgnva
hlysvignpydhaehppyaseevsnerfaeaaavativfldeakpacsaklaeltelpdg
avpyvlesgegdrlltgdqlhrivaaqkntdgqfivvssegpkgdrivdhyheyhtetfy
clegqmtmwtdgqeiqlnpgdflhvpantvhsyrldshytkmvgvlvpglfepffrtlgd
pyeghifpckpqalrfdrilqniealdlkv