3O4D: Crystal Structure Of Symfoil-4p: De Novo Designed Beta-Trefo Architecture With Symmetric Primary Structure
reference: Experimental support for the evolution of symmetric protein architecture from a simple peptide motif., Lee J, Blaber M, Proc Natl Acad Sci U S A. 2011 Jan 4;108(1):126-30. Epub 2010 Dec 20. PMID: 21173271

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