>1b2yA (A:) observed residues (from ATOM records)
yspntqqgrtsivhlfewrwvdialecerylapkgfggvqvsppnenvaiynpfrpwwer
yqpvsyklctrsgnedefrnmvtrcnnvgvriyvdavinhmcgnavsagtsstcgsyfnp
gsrdfpavpysgwdfndgkcktgsgdienyndatqvrdcrltglldlalekdyvrskiae
ymnhlidigvagfrldaskhmwpgdikaildklhnlnsnwfpagskpfiyqevidlggep
ikssdyfgngrvtefkygaklgtvirkwngekmsylknwgegwgfvpsdralvfvdnhdn
qrghgaggasiltfwdarlykmavgfmlahpygftrvmssyrwprqfqngndvndwvgpp
nnngvikevtinpdttcgndwvcehrwrqirnmvifrnvvdgqpftnwydngsnqvafgr
gnrgfivfnnddwsfsltlqtglpagtycdvisgdkingnctgikiyvsddgkahfsisn
saedpfiaihaeskl