Sengupta, I. ., Gao, M. ., Arachchige, R. ., Nadaud, P. ., Cunningham, T. ., Saxena, S. ., … Jaroniec, C. . (2015). Protein structural studies by paramagnetic solid-state NMR spectroscopy aided by a compact cyclen-type Cu(II) binding tag. Journal of Biomolecular NMR, 61(1), 1-6. https://doi.org/10.1007/s10858-014-9880-9