>6iw4A (A:) observed residues (from ATOM records) ahcigitdrdfiegvhggtwvsatleqdkcvtvmapdkpsldisletvaidrpaevrkvc ynavlthvkindkcpstgeahlaeenegdnackrtysdrgwgngcglfgkgsivacakft caksmslfevdqtkiqyviraqlhvgakqenwntdiktlkfdalsgsqevefigygkatl ecqvqtavdfgnsyiaemeteswivdrqwaqdltlpwqsgsggvwremhhlvefepphaa tirvlalgnqegslktaltgamrvtkdtlyklhgghvscrvklsaltlkgtsykictdkm ffvknptdtghgtvvmqvkvskgapcripvivaddltaainkgilvtvnpiastnddevl ievnppfgdsyiivgrgdsrltyqwhke