>2ns7B (B:) observed residues (from ATOM records)
rldkskvinsalellnevgieglttrklaqklgveqptlywhvknkralldalaiemldr
hhthfsplegeswqdflrnnaksfrnallshrdgakvhlgtrptekqyetlenqlafltq
qgfslenalyalsavghftlgsvledqehqvakdsmppllrqaielfdhqgaepaflhgl
eslirgfevqltal