>2btmA (A:) observed residues (from ATOM records)
rkpiiagnwkmngtlaeavqfvedvkghvppadevisvvcapflfldrlvqaadgtdlki
gaqtmhfadqgaytgevspvmlkdlgvtyvilghserrqmfaetdetvnkkvlaaftrgl
ipiiccgesleereagqtnavvasqvekalagltpeqvkqaviayepiwaigtgksstpe
dansvcghirsvvsrlfgpeaaeairiqyggsvkpdnirdflaqqqidgalvggaslepa
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