>3i41B (B:) observed residues (from ATOM records)
tdlklvshnvymlstvlypnwgqykradligqssyiknndvvifneafdngasdkllsnv
kkeypyqtpvlgrsqsgwdktegsysstvaedggvaivskypikekiqhvfksgcgfdnd
snkgfvytkiekngknvhvigthtqsedsrcgaghdrkiraeqmkeisdfvkkknipkde
tvyiggdlnvnkgtpefkdmlknlnvndvlyaghnstwdpqsnsiakynypngkpehldy
iftdkdhkqpkqlvnevvtekpkpwdvyaaayyyvyndfsdhypikaysk