>3n3kA (A:) observed residues (from ATOM records)
rlsasqirnlnpvfggsgpaltglrnlgntcymnsilqclcnaphladyfnrncyqddin
rsnllghkgevaeefgiimkalwtgqyryispkdfkitigkindqfagysqqdsqelllf
lmdglhedlnkadnrkrykeenndhlddfkaaehawqkhkqlnesiivalfqgqfkstvq
cltchkksrtfeafmylslplastskctlqdclrlfskeekltdnnrfycshcrarrdsl
kkieiwklppvllvhlkrfsydgrwkqklqtsvdfplenldlsqyvigpknnlkkynlfs
vsnhyggldgghytaycknaarqrwfkfddhevsdisvssvkssaayilfytslg