Journal
ANALYTICAL CHEMISTRY
Volume 89, Issue 10, Pages 5319-5324Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.6b04938
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Funding
- Wellcome Trust [103139, 203149, 108504]
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Use of a heterobifunctional photoactivatable cross-linker, sulfo-SDA (diazirine), has yielded high-density data that facilitated structure modeling of individual proteins. We expand the photoactivatable chemistry toolbox here with a second reagent, sulfo-SBP (benzophenone). This further increases the density of photo cross-linking to a factor of 20x over conventional cross-linking. Importantly, the two different photoactivatable groups display orthogonal directionality, enabling access to different protein regions, unreachable with a single cross-linker.
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