>4pbtA (A:) observed residues (from ATOM records)
mdefemikrntseiiseeelrevlkkdeksagigfepsgkihlghylqikkmidlqnagf
diiieladlhaylnqkgeldeirkigdynkkvfeamglkakyvygsewmldkdytlnvyr
lalkttlkrarrsmeliaredenpkvaeviypimqvnsihykgvdvavggmeqrkihmla
rellpkkvvcihnpvltgldgegkmssskgnfiavddspeeirakikkaycpagvvegnp
imeiakyfleypltikrpekfggdltvnsyeeleslfknkelhpmdlknavaeelikile
pirkrllehh