1UCO:
reference: An X-ray analysis of native monoclinic lysozyme. A case study on the reliability of refined protein structures and a comparison with the low-humidity form in relation to mobility and enzyme action., Nagendra HG, Sudarsanakumar C, Vijayan M, Acta Crystallogr D Biol Crystallogr. 1996 Nov 1;52(Pt 6):1067-74. PMID: 15299565

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