>4klnF (F:) observed residues (from ATOM records)
lstailkqknrpnrlivdeainednsvvslsqpkmdelqlfrgdtvllkgkkrreavciv
lsddtcsdekirmnrvvrnnlrvrlgdvisiqpcpdvkygkrihvlpiddtvegitgnlf
evylkpyfleayrpirkgdiflvrggmravefkvvetdpspycivapdtvihcegepikr
edeeeslnevgyddiggcrkqlaqikemvelplrhpalfkeigvkpprgillygppgtgk
tliaravanetgaffflingpeimsklagesesnlrkafeeaeknapaiifideldaiap
krekthgeverrivsqlltlmdglkqrahvivmaatnrpnsidpalrrfgrfdrevdigi
pdatgrleilqihtknmkladdvdleqvanethghvgadlaalcseaalqairkkmdlid
ledetidaevmnslavtmddfrwalsqsnps