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Congo red, a dye of high self‐assembling tendency, has been found to form complexes with proteins by adhesion of the ribbon‐like supramolecular ligand to polypeptide chains of β‐conformation. Complexation is allowed by local or global protein instability, facilitating penetration of the...
The nature of the interaction between nucleic acids and divalent ions in solution is complex. It includes long‐range electrostatic and short‐range nonelectrostatic forces. Water molecules can be in an inner coordination shell that intervenes between the ion and its binding site. This work...
The molecular orientation of DNA membranes, which were prepared by subjecting diluted solution of salmon sperm DNA to a natural drying process, was examined. X‐ray diffraction and polarization microscopy revealed that the dried membranes have zonal structures. Each zone shows different features...
Porphyrins and their metal derivatives are strong protein binders. Some of these compounds have been used for radiation sensitization therapy of cancer and are targeted to interact with cellular DNA and protein. The presence of several high‐affinity binding sites on human serum albumin (HSA)...
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