>2dfsO (O:) observed residues (from ATOM records) qiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtidfpe fltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdemire adidgdgqvnyeefvqmmtak