>1qx7B (B:) observed residues (from ATOM records)
adqlteeqiaefkeafslfgtittkelgtvmrslgqnpteaelqdminevdaidfpeflt
mmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdemireadi
dgdgqvnyeefvqmmt