>7k4tA (A:) observed residues (from ATOM records)
aaqsidqlikargkvyfgvatdqnrlttgknaaiikadfgmvwpensmqwdatepsqgnf
nfagadylvnwaqqngkligagclvwhnflpswvssitdkntlinvmknhittlmtrykg
kirtwdvvgeafnedgslrqnvflnvigedyipiafqtaraadpnaklyimdynldsasy
pktqaivnrvkqwraagvpidgigsqmhlsagqgagvlqalpllasagtpevsilmldva
gasptdyvnvvnaclnvqscvgitvmgvadpdsafasstpllfdgnfnpkpaynaivqdl
q