>4nnpA (A:) observed residues (from ATOM records)
klkvvttnsilydmaknvggdnvdihsivpvgqdpheyevkpkdikkltdadvilyngln
letgngwfekaleqagkslkdkkviavskdvkpiylneegnkdkqdphawlsldngikyv
ktiqqtfidndkkhkadyekqgnkyiaqleklnndskdkfndipkeqramitsegafkyf
skqygitpgyiweintekqgtpeqmrqaiefvkkhklkhllvetsvdkkameslseeifg
evytdsigkegtkgdsyykmmksnietvhgsmk