>2w4lE (E:) observed residues (from ATOM records)
ylewpeyfmavaflsaqrskdpnsqvgacivnsenkivgigyngmpngcsddvlpwrrta
enkldtkypyvchaelnaimnknltdvkgcsmyvalfpcnecakliiqagikevifmsdk
yhdsdeataarllfnmagvtfrkfipkcskividfdsinsrp