5ewb | pdb_00005ewb

Racemic crystal structures of Pribnow box consensus promoter sequence (P21/c)

spinqualitylabelsall models 5ewb, resolution 1.69Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5ewb is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 5et9 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed It has previously been shown that the use of racemic mixtures of naturally chiral macromolecules such as protein and DNA can significantly aid the crystallogenesis process, thereby addressing one of the major bottlenecks to structure determination by X-ray crystallographic methods-that of crystal growth. Although previous studies have provided convincing evidence of the applicability of the racemic crystallization technique to DNA through the study of well-characterized DNA structures, we sought to apply this method to a historically challenging DNA sequence. For this purpose we chose a non-self-complementary DNA duplex containing the biologically-relevant Pribnow box consensus sequence 'TATAAT'. Four racemic crystal structures of this previously un-crystallizable DNA target are reported (with resolutions in the range of 1.65-2.3 A), with further crystallographic studies and structural analysis providing insight into the racemic crystallization process as well as structural details of this highly pertinent DNA sequence. Structure elucidation of the Pribnow box consensus promoter sequence by racemic DNA crystallography.,Mandal PK, Collie GW, Srivastava SC, Kauffmann B, Huc I Nucleic Acids Res. 2016 May 2. pii: gkw367. PMID:27137886 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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