>2ux1B (B:) observed residues (from ATOM records)
ladskavlnqavadlsvahsilhqvhwymrgrgfmiwhpkmdeymeeidgyldemserli
tlggapfstlkefsensqlkevlgdynvtieeqlarvvevfrylaalfqkgfdvsdeegd
svtndifnvakasiekhiwmlqaelgqapkl