>2dfsS (S:) observed residues (from ATOM records) qiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtidfpe fltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdemire adidgdgqvnyeefvqmmtak