>3wkrF (F:) observed residues (from ATOM records) inldkyknltrsltrefinlnpiqrggilpkeakkavyeywdgppikdflediakflnmd carpthgaregkfivmhaickegdyvvldknahytsyvaaeraklnvaevgyeeeyptyk inlegykevidnledkgknvglillthvdgeygnlndakkvgkiakekgipfllncaytv grmpvngkevkadfivasghksmaasapcgilafseefsdkitktsekfpvkeiemlgct srglpivtlmasfphvvervkkwdeelkktryvvdelekigfkqlgikpkehdlikfetp vldeiakkdkrrgfffydelkkrgiggiragvtkeikmsvygleweqveyvvnaikeive sck