4lx5

X-ray crystal structure of the M6" riboswitch aptamer bound to pyrimido[4,5-d]pyrimidine-2,4-diamine (PPDA)X-ray crystal structure of the M6" riboswitch aptamer bound to pyrimido[4,5-d]pyrimidine-2,4-diamine (PPDA)

Structural highlights 4lx5 is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: , Related: 3la5, 4lx6 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Ligand-dependent control of gene expression is essential for gene functional analysis, target validation, protein production and metabolic engineering. However, the expression tools currently available are difficult to transfer between species and exhibit limited mechanistic diversity. Here we demonstrate how the modular architecture of purine riboswitches can be exploited to develop orthogonal and chimeric switches that are transferable across diverse bacterial species, modulating either transcription or translation, to provide tuneable activation or repression of target gene expres-sion, in response to synthetic non-natural effector molecules. Our novel riboswitch-ligand pairings are shown to regulate physiologically important genes required for bacterial motility in Escherichia coli and cell morphology in Bacillus subtilis. These findings are relevant for future gene function studies and antimicrobial target validation, whilst providing new modular and orthogonal regulatory components for deployment in synthetic biology regimes. Modular Riboswitch Toolsets for Synthetic Genetic Control in Diverse Bacterial Species.,Robinson CJ, Vincent HA, Wu MC, Lowe PT, Dunstan MS, Leys D, Micklefield J J Am Chem Soc. 2014 Jun 27. PMID:24971878 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

spinqualitylabelsall models 4lx5, resolution 2.13Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image