>1xg5A (A:) observed residues (from ATOM records)
arpgmerwrdrlalvtgasggigaavaralvqqglkvvgcartvgnieelaaecksagyp
gtlipyrcdlsneedilsmfsairsqhsgvdicinnaglarpdtllsgstsgwkdmfnvn
vlalsictreayqsmkernvddghiininsmsghrvlplsvthfysatkyavtalteglr
qelreaqthiratcispgvvetqfafklhdkdpekaaatyeclkpedvaeaviyvlstpa
hiqigdiqmrptgs