Structural highlights
8qpc is a 3 chain structure with sequence from Sulfolobus acidocaldarius and Synthetic construct. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Method: | X-ray diffraction, Resolution 3.24Å |
| Ligands: | , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
DN7D_SULAC Can constrain negative DNA supercoils. May be involved in maintaining the integrity of the genome at high temperature.[UniProtKB:P61990]
Publication Abstract from PubMed
Helical aromatic oligoamide foldamers bearing anionic side chains that mimic the overall shape and charge surface distribution of DNA were synthesized. Their interactions with chromosomal protein Sac7d, a non-sequence-selective DNA-binder that kinks DNA, were investigated by Surface Plasmon Resonance (SPR), Isothermal Titration Calorimetry (ITC), Circular Dichroism spectroscopy (CD), melting curve analysis, Atomic Force Microscopy (AFM), and Nuclear Magnetic Resonance (NMR), as well as by single crystal X-ray crystallography. The foldamers were shown to bind to Sac7d better than a DNA duplex of comparable length. The interaction is diastereoselective and takes place at the DNA binding site. Crystallography revealed that the DNA mimic foldamers have a binding mode of their own and that they can bind to Sac7d without being kinked.
DNA Mimic Foldamer Recognition of a Chromosomal Protein.,Deepak D, Wu J, Corvaglia V, Allmendinger L, Scheckenbach M, Tinnefeld P, Huc I Angew Chem Int Ed Engl. 2024 Dec 23:e202422958. doi: 10.1002/anie.202422958. PMID:39714421[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Deepak D, Wu J, Corvaglia V, Allmendinger L, Scheckenbach M, Tinnefeld P, Huc I. DNA Mimic Foldamer Recognition of a Chromosomal Protein. Angew Chem Int Ed Engl. 2024 Dec 23:e202422958. PMID:39714421 doi:10.1002/anie.202422958
