>6fxnB (B:) observed residues (from ATOM records)
vtqdclqliadsetptiqkgsytfvpwllsfkrgsaleekenkilvketgyffiygqvly
tdktyamghliqrkkvavfgdelslvtlfrciqnmpetlpnnscysagiakleegdelql
aiprenaqisldgdvtffgalkll