>5nv0B (B:) observed residues (from ATOM records) seyqdgkefgigdlvwgkikgfswwpamvvswkatskrqamsgmrwvqwfgdgkfsevsa dklvalglfsqhfnlatfnklvsyrkamyhalekarvragktfpssledqlkpmlewahg gfkptgieglkpn