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Crystallophore: a versatile lanthanide complex for protein crystallography combining nucleating effects, phasing properties, and luminescence

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Abstract

Macromolecular crystallography suffers from two major issues: getting well-diffracting crystals and solving the phase problem inherent to large macromolecules. Here, we describe the first example of a lanthanide complex family named “crystallophore” (Xo4), which contributes to tackling both bottlenecks. This terbium complex, Tb–Xo4, is an appealing agent for biocrystallography, combining the exceptional phasing power of the Tb(III) heavy atom with powerful nucleating properties, providing ready-to-use crystals for structure determination. Furthermore, protein/Tb–Xo4 co-crystals can be easily detected and discriminated from other crystalline by-products using luminescence. We demonstrate the potential of this additive for the crystallisation and structure determination of eight proteins, two of whose structures were unknown.

Graphical abstract: Crystallophore: a versatile lanthanide complex for protein crystallography combining nucleating effects, phasing properties, and luminescence

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Publication details

The article was received on 17 Feb 2017, accepted on 02 Jun 2017 and first published on 06 Jun 2017


Article type: Edge Article
DOI: 10.1039/C7SC00758B
Citation: Chem. Sci., 2017, Advance Article
  • Open access: Creative Commons BY-NC license
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    Crystallophore: a versatile lanthanide complex for protein crystallography combining nucleating effects, phasing properties, and luminescence

    S. Engilberge, F. Riobé, S. Di Pietro, L. Lassalle, N. Coquelle, C. Arnaud, D. Pitrat, J. Mulatier, D. Madern, C. Breyton, O. Maury and E. Girard, Chem. Sci., 2017, Advance Article , DOI: 10.1039/C7SC00758B

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