>1k7xA (A:) observed residues (from ATOM records)
meryenlfaqlndrregafvpfvtlgdpgieqslkiidtlidagadalelgvpfsdplad
gptiqnanlrafaagvtpaqcfemlalirekhptipigllmyanlvfnngidafyarceq
vgvdsvlvadvpveesapfrqaalrhniapificppnadddllrqvasygrgytyllplh
hlieklkeyhaapalqgfgisspeqvsaavragaagaisgsaivkiieknlaspkqmlae
lrsfvsamkaasra