>2al6B (B:) observed residues (from ATOM records)
mervlkvfhyfenssepttwasiirhgdatdvrgiiqkivdchkvknvacyglrlshlqs
eevhwlhldmgvsnvrekfelahppeewkyelrirylpkgflnqftedkptlnffyqqvk
ndymleiadqvdqeialklgcleirrsygemrgnalekksnyevlekdvglrrffpksll
dsvkaktlrkliqqtfrqfanlnreesilkffeilspvyrfdkecfkcalgsswiisvel
aigpeegisyltdkganpthladfnqvqtiqysnsedkdrkgmlqlkiagapepltvtap
sltiaenmadlidgycrlvngatqsfiirpqkegeralpsipktddyaeii