>1u6lB (B:) observed residues (from ATOM records)
slqivpylifngncreafscyhqhlggtleamlpfgdspepadwkdkimharlvvgsfal
masdnhpaypyegikgcsislnvdskaeaerlfnalaeggsvqmplgptfwaasfgmftd
rfgvawmvnceqd