>4bl2B (B:) observed residues (from ATOM records)
dkeinntidaiedknfkqvykdssyisksdngevemterpikiynslgvkdiniqdrkik
kvsknkkrvdaqykiktnygnidrnvqfnfvkedgmwkldwdhsviipgmqkdqsihien
lkskrgkildrnnvelantgtayeigivpknvskkdykaiakelsisedyikqqmdqnwv
qddtfvplktvkkmdeylsdfakkfhlttnetesrnyplgkatshllgyvgpinseelkq
keykgykddavigkkgleklydkklqhedgyrvtivddnsntiahtliekkkkdgkdiql
tidakvqksiynnmkndygsgtaihpqtgellalvstpsydvypfmygmsneeynklted
kkepllnkfqittspgstqkiltamiglnnktlddktsykidgkgwqkdkswggynvtry
evvngnidlkqaiessdniffarvalelgskkfekgmkklgvgedipsdypfynaqisnk
nldneilladsgygqgeilinpvqilsiysalenngninaphllkdtknkvwkkniiske
ninlltdgmqqvvnkthkediyrsyanligksgtaelktgrqigwfisydkdnpnmmmai
nvkdvqdkgmasynakisgkvydelyengnkkydide