>2dfsR (R:) observed residues (from ATOM records) aefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtidfpefl tmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdemiread idgdgqvnyeefvqmmtak