>3u6xP (P:) observed residues (from ATOM records)
asikkvyrgmkngaetinddleainseltsggnvvhktgdetiagkktftgnvevngslt
lptkswsgelgggiilslrkkgttveysiggeisssilansnlvnrsvpnefcprnrcsl
vghmvggwnafhidipssgvcqwfgptassgtprgtgtypidh