>1a2kA (A:) observed residues (from ATOM records) kpiweqigssfiqhyyqlfdndrtqlgaiyidascltwegqqfqgkaaiveklsslpfqk iqhsitaqdhqptpdsciismvvgqlkadedpimgfhqmfllknindawvctndmfrlal hnfg