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Broadband time-domain spectroscopy was used to measure the terahertz frequency absorption of protein single crystals in order to study global protein dynamics. Temperature dependent dynamics were measured for lysozyme, and the terahertz frequency spectrum of mouse urinary protein was compared to calculated spectra.
Broadband time-domain spectroscopy has been used to measure the terahertz frequency absorption of single crystal proteins. A dehydration study of tetragonal hen egg-white lysozyme is presented as a proof of concept.
Despite more than five decades of extensive studies of thiamin diphosphate (ThDP) enzymes, there remain many uncertainties as to how these enzymes achieve their rate enhancements. Here, we present a clear picture of catalysis for the simple nonoxidative decarboxylase, oxalyl-coenzyme A (CoA) decarboxylase, based on crystallographic snapshots along the catalytic cycle and kinetic data on active site...
Nucleotide excision repair (NER) is found throughout nature, in eubacteria, eukaryotes and archaea. In human cells it is the main pathway for the removal of damage caused by UV light, but it also acts on a wide variety of other bulky helix-distorting lesions caused by chemical mutagens. An ongoing challenge is to understand how a site of DNA damage is located during NER and distinguished from non-damaged...
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