>4rd6A (A:) observed residues (from ATOM records)
awpkvqpevnigvvghvdhgkttlvqaitgiwtskhsklgyaetnigvcesckkpeayvt
epsckscgsddepkflrrisfidapghevlmatmlsgaalmdgailvvaanepfpqpqtr
ehfvalgiigvknliivqnkvdvvskeealsqyrqikqftkgtwaenvpiipvsalhkin
idsliegieeyiktpyrdlsqkpvmlvirsfdvnkpgtqfnelkggviggsiiqglfkvd
qeikvlpglrvekqgkvsyepiftkissirfgdeefkeakpgglvaigtyldpsltkadn
llgsiitladaevpvlwnirikynllervvgakemlkvdpiraketlmlsvgssttlgiv
tsvkkdeievelrrpvavwsnnirtvisrqiagrwrmigwglvei