>2wthA (A:) observed residues (from ATOM records) smnrqeisdlcvkslegrmvgteaqniengnafyryfftnfpdlrvyfkgaekytaddvk kserfdkqgqrillachllanvytneevfkgyvretinrhriykmdpalwmafftvftgy lesvgslndqqkaawmalgkefnaesqthlknsnlphv