6FII:
reference: A fluorescence anisotropy assay to discover and characterize ligands targeting the maytansine site of tubulin., Menchon G, Prota AE, Lucena-Agell D, Bucher P, Jansen R, Irschik H, Muller R, Paterson I, Diaz JF, Altmann KH, Steinmetz MO, Nat Commun. 2018 May 29;9(1):2106. doi: 10.1038/s41467-018-04535-8. PMID: 29844393

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