Enthalpy-entropy compensations in drug-DNA binding studies.
نویسندگان
چکیده
منابع مشابه
Molecular rigidity and enthalpy-entropy compensation in DNA melting.
Enthalpy-entropy compensation (EEC) is observed in diverse molecular binding processes of importance to living systems and manufacturing applications, but this widely occurring phenomenon is not sufficiently understood from a molecular physics standpoint. To gain insight into this fundamental problem, we focus on the melting of double-stranded DNA (dsDNA) since measurements exhibiting EEC are e...
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Isotherms of the binding of the anthracycIine antibiotic, adriamycin (adriblastin), to DNA histone complexes was studied by means of spectroscopic analysis. The results indicated that: (a) binding of adriamycin to histones reduced the interaction of histones with DNA, (b) binding of the drug to DNA did not change the binding affinity of histone to DNA and, (c) in the explored binding range...
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The origin of the catalytic power of enzymes with a meta-stable native state, e.g. molten globular state, is an unsolved challenging issue in biochemistry. To help understand the possible differences between this special class of enzymes and the typical ones, we report here computer simulations of the catalysis of both the well-folded wild-type and the molten globular mutant of chorismate mutas...
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هدف از این مطالعه بررسی امکان استفاده از داروهای شناخته شده در درمان سایر بیماریها به عنوان داروهای ضد سرطان است. همچنین با استفاده از این داروها در ساختمان کمپلکس فلز می توان شاخص های دارویی بدست آمده را بررسی نمود. داروی ضد ویروس ایدز(hiv)به نام زیدوودین(azt)انتخاب و.کمپلکس.محلول.در.آب[pt(azt)2]cl2سنتزو به روشهای مختلف فیزیکی و شیمیایی شناسایی گردید. بر هم کنش مقایسه ای این دارو و کمپلکس پلا...
15 صفحه اولEntropy-enthalpy compensation: fact or artifact?
The phenomenon of entropy-enthalpy (S-H) compensation is widely invoked as an explanatory principle in thermodynamic analyses of proteins, ligands, and nucleic acids. It has been suggested that this compensation is an intrinsic property of either complex, fluctuating, or aqueous systems. The questions examined here are whether the observed compensation is extra-thermodynamic (i.e., reflects any...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1987
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.84.24.8922