>3b66A (A:) observed residues (from ATOM records)
piflnvleaiepgvvcaghdnnqpdsfaallsslnelgerqlvhvvkwakalpgfrnlhv
ddqmaviqyswmglmvfamgwrsftnvnsrmlyfapdlvfneyrmhksrmysqcvrmrhl
sqefgwlqitpqeflcmkalllfsiipvdglknqkffdelrmnyikeldriiackrknpt
scsrrfyqltklldsvqpiarelhqftfdllikshmvsvdfpemmaeiisvqvpkilsgk
vkpiyfh