>2z7sA (A:) observed residues (from ATOM records)
kadpshfellkvlgqgsfgkvflvrkvtrpdsghlyamkvlkiladvnhpfvvklhyafq
tegklylildflrggdlftrlskevmfteedvkfylaelalgldhlhslgiiyrdlkpen
illdeeghikltdfglskegtveymapevvnrqghshsadwwsygvlmfemltgslpfqg
kdrketmtlilkaklgmpqflsteaqsllralfkrnpanrlgsgpdgaeeikrhvfysti
dwnklyrreikppfkp