>1r2yA (A:) observed residues (from ATOM records)
pqlpevetirrtllplivgktiedvrifwpniirhprdseafaarmigqtvrglerrgkf
lkflldrdalishlrmegryavasaleplephthvvfcftdgselryrdvrkfgtmhvya
keeadrrpplaelgpeplspafspavlaeravktkrsvkallldqtvvagfgniyvdesl
fragilpgrpaaslsskeierlheemvatigeavmkggstvrtyvntqgeagtfqhhlyv
ygrqgnpckrcgtpiektvvagrgthycprcqr