>3i4aA (A:) observed residues (from ATOM records)
aafgrathavvralpeslgqhalrsakgeevdvaraerqhqlyvgvlgsklglqvvelpa
deslpdcvfvedvavvceetalitrpgapsrrkevdmmkealeklqlnivemkdenatld
ggdvlftgreffvglskrtnqrgaeiladtfkdyavstvpvadglhlksfcsmagpnlia
igssesaqkalkimqqmsdhrydkltvpddiaanciylnipnkghvllhrtpeeypesak
vyeklkdhmlipvsmselekvdglltccsvlinkk