>1by7A (A:) observed residues (from ATOM records)
edlcvantlfalnlfkhlakasptqnlflspwsisstmamvymgsrgstedqmakvlqfn
evgaadkihssfrslssainllesvnklfgeksasfreeyirlcqkyyssepqavdflec
aeearkkinswvktqtkgkipnllpegsvdgdtrmvlvnavyfkgkwktpfekklypfrv
nsaqrtpvqmmylreklnigyiedlkaqilelpyagdvsmflllpdeiadvstglelles
eitydklnkwtskdkmaedevevyipqfkleehyelrsilrsmgmedafnkgranfsgms
erndlflsevfhqamvdvneegtgpqfvadhpflflimhkitncilffgrfssp