Zobrazeno 1 - 10
of 271
pro vyhledávání: '"J. W Lown"'
Publikováno v:
Photochemistry and Photobiology. 48:19-25
— The 1,4-diamino-substituted anthraquinones mitoxantrone and ametantrone do not photosensitize DNA damage following illumination with visible light. In contrast, both the 1,5- and 1,8-bis[[(diethylamino)ethyl]amino]anthraquinones, AMI and AM2 resp
Autor:
Günther Burckhardt, Leonhard Kittler, H. Simon, Zimmer C, Sanjay K. Sharma, J. W. Lown, Eckhard Birch-Hirschfeld
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 19:1101-1109
The binding ability of cross-linked thiazolated polyamides (containing the base sequence-reading elements thiazole(Th)-pyrrole(Py)-pyr-role(Py) and thiazole(Th)-imidazole(Im)- pyrrol(Py) to various DNA dodecamers has been investigated. CD titration e
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 174:81-92
The reactions of substituted o-phenylene diamines, o-aminophenol, o-aminothiophenol, 3,4-diaminopyridine with p-cyanobenzaldehyde by refluxing in nitrobenzene gave corresponding benzimidazole, benzoxazole, benzthiazole and imidazopyridine derivatives
Publikováno v:
The Journal of Organic Chemistry. 66:1030-1034
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 18:423-431
AM1 semi-empirical and ab initio calculations were performed on certain synthetic polyamide conjugates of the aglycone of the minor groove binding antibiotic calicheamicin. Geometry optimized conformations and heats of formation were obtained. The bi
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 15:81-95
Binding to DNA and synthetic duplex polymers of two bifunctional netropsins and effects on supercoiled plasmid DNA as well as their inhibitory potency on DNA topoisomerases have been investigated. Characteristic differences were found in the DNA bind
Autor:
J. W. Lown
Publikováno v:
Canadian Journal of Chemistry. 75:99-119
Photodynamic therapy relies on the selective accumulation of photosensitizers within neoplastic tissue, followed by light activation to generate cytotoxic singlet oxygen. At present, PhotofrinTM, a preparation of hematoporphyrin derivatives (HPD) wit
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 14:475-484
Ab initio calculations (Hartree-Fock) using the 3–21G and the STO-3G Gaussian basis sets were performed on synthetic analogues of the minor groove binding bis-benzimidazole Hoechst 33258 designed to exhibit altered sequence recognition. Geometry op
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 13:553-564
The understanding of early events in the expression of genes has vastly improved in recent years with the identification of a variety of gene- and sequence-specific DNA binding transcription factors. One such protein, Sp1, has been implicated in acti
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 13:269-284
The asymmetrical DNA duplex [5'd(AAGGGACTTTCC)].[5'-d(GGAAAGTCCCTT)] has been studied by one- and two-dimensional NMR techniques. The sequence is comprised of the actual 10 base-pair long binding site for the transcription factor NF-kappa B in the en