期刊
CHEMISTRY & BIOLOGY
卷 18, 期 3, 页码 293-298出版社
CELL PRESS
DOI: 10.1016/j.chembiol.2011.01.013
关键词
-
资金
- NIH [GM02278]
The glycine riboswitch regulates gene expression through the cooperative recognition of its amino acid ligand by a tandem pair of aptamers. A 3.6 angstrom crystal structure of the tandem riboswitch from the glycine permease operon of Fusobacterium nucleatum reveals the glycine binding sites and an extensive network of interactions, largely mediated by asymmetric A-minor contacts, that serve to communicate ligand binding status between the aptamers. These interactions provide a structural basis for how the glycine riboswitch cooperatively regulates gene expression.
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