Luminescence of the solid complexes of acridine orange with RNA.
Luminescence of the solid complexes of acridine orange with RNA.
复制标题
吖啶橙与 RNA 的固体复合物的发光。
DOI:
10.1002/cyto.990020402
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发表时间:
1982
期刊:
影响因子:
--
通讯作者:
Melamed,MR
中科院分区:
文献类型:
--
作者:
Kapuscinski,J;Darzynkiewicz,Z;Melamed,MR
The products of interaction between acridine orange (AO) and natural RNA, or the synthetic RNA homopolymers are precipitates insoluble over a wide range of ionic strength. These complexes have a composition of 1 AO molecule per 1 phosphatate. The reaction is highly cooperative and the complex exhibits metachromatic luminescence. Significant differences in the luminescence spectra, related to base composition of RNA, characterize the insoluble complexes. This observation suggests that dye‐base interactions take place in the AO‐RNA complexes.During titration of poly(rA) with AO and simultaneous measurement of the luminescence and light scatter a two‐step formation of the particles could be detected. The cooperative binding of the ligand at D/P < 0.6 coincides with formation of small particles (molecular aggregates or micelles) and is followed at D/P > 0.6 by a cooperative agglomeration; the product of this agglomeration is particles of the size 0.35 μm and larger.Evidence is presented that suggests that the long wavelength luminescence (∼ 650 nm) is a consequence of the solute‐solid state transition of the AO‐RNA interaction product rather than the classic dye‐dye interactions previously visualized in the stacking model. Since these novel observations cannot be fully explained by the previously postulated molecular mechanisms of AO binding, an alternative model is advanced. Its implications in quantitative cytochemistry of nucleic acid as applied to flow cytometry are discussed.
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影响因子:
3.9
作者:
S. Yamabe
通讯作者:
S. Yamabe
DOI:
10.1515/znb-1959-1208
发表时间:
1959
期刊:
Zeitschrift für Naturforschung B
影响因子:
--
作者:
V. Zanker;M. Held;H. Rammensee
通讯作者:
H. Rammensee
DOI:
10.1073/pnas.43.5.373
发表时间:
1957
影响因子:
11.1
作者:
G. Karreman;H. Mueller;A. Szent
通讯作者:
A. Szent
影响因子:
5.6
作者:
David M. Neville;David R. Davies
通讯作者:
David R. Davies
DOI:
10.1515/zpch-1952-20020
发表时间:
1952
期刊:
Zeitschrift für Physikalische Chemie
影响因子:
--
作者:
V. Zanker
通讯作者:
V. Zanker