>1y3tB (B:) observed residues (from ATOM records)
cthslpkekmpyllrsgegerylfgrqvatvmangrstgdlfeivllsggkgdafplhvh
kdthegilvldgkleltldgeryllisgdyanipagtphsyrmqshrtrlvsytmkgnva
hlysvignpydhaehppyaseevsnerfaeaaavativfldeakpacsaklaeltelpdg
avpyvlesgegdrlltgdqlhrivaaqkntdgqfivvssegpkgdrivdhyheyhtetfy
clegqmtmwtdgqeiqlnpgdflhvpantvhsyrldshytkmvgvlvpglfepffrtlgd
pyeghifpckpqalrfdrilqniealdlkv