>4ctoA (A:) observed residues (from ATOM records)
qisvrglagvenvtelkknfnrhlhftlvkdrnvatprdyyfalahtvrdhlvgrwirtq
qhyyekdpkriyylslefymgrtlqntmvnlalenacdeatyqlgldmeeleeieedagl
gngglgrlaacfldsmatlglaaygygiryefgifnqkicggwqmeeaddwlrygnpwek
arpeftlpvhfygrvehtsqgakwvdtqvvlampydtpvpgyrnnvvntmrlwsakapnd
fnlgyiqavldrnlaenisrvlypndnffegkelrlkqeyfvvaatlqdiirrfksstnf
dafpdkvaiqlndthpslaipelmrvlvdlerldwdkawevtvktcaytnhtvlpealer
wpvhlletllprhlqiiyeinqrflnrvaaafpgdvdrlrrmslveegavkrinmahlci
agshavngvarihseilkktifkdfyelephkfqnktngitprrwlvlcnpglaeiiaer
igeeyisdldqlrkllsyvddeafirdvakvkqenklkfaaylereykvhinpnslfdvq
vkriheykrqllnclhvitlynrikkepnkfvvprtvmiggkaapgyhmakmiiklitai
gdvvnhdpvvgdrlrviflenyrvslaekvipaadlseqistagteasgtgnmkfmlnga
ltigtmdganvemaeeageenffifgmrvedvdrldqrgynaqeyydripelrqiieqls
sgffspkqpdlfkdivnmlmhhdrfkvfadyeeyvkcqervsalyknprewtrmvirnia
tsgkfssdrtiaqyareiwgvepsrqrlpa