5FM9:
reference: Non-Linear and Flexible Regions of the Human Notch1 Extracellular Domain Revealed by High-Resolution Structural Studies., Weisshuhn PC, Sheppard D, Taylor P, Whiteman P, Lea SM, Handford PA, Redfield C, Structure. 2016 Apr 5;24(4):555-66. doi: 10.1016/j.str.2016.02.010. Epub 2016 Mar, 17. PMID: 26996961

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