>2nn6F (F:) observed residues (from ATOM records)
gtrdptrlrpvyaragllsqakgsayleaggtkvlcavsgprqalrgrllcdfrrapfag
rrrrappggceerelalalqealepavrlgrypraqlevsallledggsalaaaltaaal
aladagvemydlvvgcglslapgpaptwlldptrleeeraaagltvalmpvlnqvagllg
sgegglteswaeavrlglegcqrlypvlqqslvraarrrgaaa