>4fckA (A:) observed residues (from ATOM records)
rtigiigapfskgqprggveegptvlrkaglleklkeqecdvkdygdlpfadipndspfq
ivknprsvgkaseqlagkvaevkkngrislvlggdhslaigsisgharvhpdlgviwvda
htdintpltttsgnlhgqpvsfllkelkgkipdvpgfswvtpcisakdivyiglrdvdpg
ehyilktlgikyfsmtevdrlgigkvmeetlsyllgrkkrpihlsfdvdgldpsftpatg
tpvvggltyreglyiteeiyktgllsgldimevnpslgktpeevtrtvntavaitlacfg
laregnhkpidyln