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Dissecting the often subtle or time-sensitive roles of glycans in biology demands an increased availability of high-quality inhibitors for carbohydrate-processing enzymes. A review of lessons learned from other fields and considerations unique to glycobiology provides guidelines for development of these critical chemical tools.
Chromatin structure and its modulation by epigenetic mechanisms represent a complex system that regulates gene expression in cells. Chemical biology approaches, including chemical probes, designer chromatin and molecular-level analysis of chromatin states, offer powerful mechanistic tools for understanding and manipulating chromatin at all levels of cellular organization.