Protein Crystallography through Supramolecular Interactions between a Lanthanide Complex and Arginine
Résumé
Strong supramolecular interactions between tris(dipicolinate)lanthanide complexes and arginine‐like moieties have been evidenced by NMR chemical shift titration and X‐ray diffraction analyses. Since the lanthanide atom is a strong anomalous scatterer, and the complex itself is luminescent, this interaction could be used as a powerful tool in the preparation of crystals of protein derivatives with high phasing power.