>1yrvA (A:) observed residues (from ATOM records)
vprgsmhgraylllhrdfcdlkennykgitakpvsedmmeweveieglqnsvwqglvfql
tihftseynyappvvkfitipfhpnvdphtgqpcidfldnpekwntnytlssillalqvm
lsnpvlenpvnleaarilvkdeslyrtilrlfn