>2cxfA (A:) observed residues (from ATOM records)
manermnlmnmaklsikgliesalnlgrtldsdyaplqqffvvmehclkhglkakktflg
qnksfwgplelveklvpeaaeitasvkdlpglktpvgrgrawlrlalmqkklseymkali
nkkellsefyevnalmmeeegaiiagllvglnvidanfcmkgedlds