>3r7lF (F:) observed residues (from ATOM records)
mkhlttmselsteeikdllqtaqelksgktdnqltgkfaanlffepstrtrfsfevaekk
lgmnvlnldgtstsvqkgetlydtirtlesigvdvcvirhsedeyyeelvsqvnipilna
gdgcgqhptqslldlmtiyeefntfkgltvsihgdikhsrvarsnaevltrlgarvlfsg
psewqdeentfgtyvsmdeavessdvvmllriqnerhqsavsqegylnkygltveraerm
krhaiimhpapvnrgveiddslveseksrifkqmkngvfirmaviqralq