>1a7tA (A:) observed residues (from ATOM records)
svkisddisitqlsdkvytyvslaeiegwgmvpsngmivinnhqaalldtpindaqteml
vnwvtdslhakvttfipnhwhgdcigglgylqrkgvqsyanqmtidlakekglpvpehgf
tdsltvsldgmplqcyylggghatdnivvwlptenilfggcmlkdnqttsignisdadvt
awpktldkvkakfpsaryvvpghgnyggteliehtkqivnqyiests