Double bands in DNA gel elctrophoresis caused by bis-intercalating dyes
نویسندگان
چکیده
منابع مشابه
Stable fluorescent complexes of double-stranded DNA with bis-intercalating asymmetric cyanine dyes: properties and applications.
The synthesis, proof of structure, and the absorption and fluorescence properties of two new unsymmetrical cyanine dyes, thiazole orange dimer (TOTO; 1,1'-(4,4,7,7-tetramethyl-4,7- diazaundecamethylene)-bis-4-[3-methyl-2,3-dihydro-(benzo-1,3-thiaz ole)-2- methylidene]-quinolinium tetraiodide) and oxazole yellow dimer (YOYO; an analogue of TOTO with a benzo-1,3-oxazole in place of the benzo-1,3-...
متن کاملInteraction of dimeric intercalating dyes with single-stranded DNA.
The unsymmetrical cyanine dye thiazole orange homodimer (TOTO) binds to single-stranded DNA (ssDNA, M13mp18 ssDNA) to form a fluorescent complex that is stable under the standard conditions of electrophoresis. The stability of this complex is indistinguishable from that of the corresponding complex of TOTO with double-stranded DNA (dsDNA). To examine if TOTO exhibits any binding preference for ...
متن کاملDNA melting in the presence of fluorescent intercalating oxazole yellow dyes measured with a gel-based assay.
We measured the effect of the intercalating oxazole yellow DNA dye quinolinium,4-[(3-methyl-2(3H)-benzoxazolylidene)methyl]-1-[3-(trimethylammonio)propyl]-,diiodide (YO-PRO) and its homodimer (YOYO) on the melting of self-complementary DNA duplexes using a gel-based assay. The assay, which requires a self-complementary DNA sequence, is independent of the optical properties of the molecules in s...
متن کاملMono- and bis-intercalating dyes for multiplex fluorescence lifetime detection of DNA restriction fragments in capillary electrophoresis.
The use of novel intercalating dyes as labels in DNA restriction fragment analysis by capillary electrophoresis with frequency-domain fluorescence lifetime detection is described. The dyes, including one mono-intercalating dye with three positive charges and three bis-intercalating, homodimeric dyes with four positive charges, were excited by the 488 nm line of an argon ion laser and exhibited ...
متن کاملSynthesis of Acridine-based DNA Bis-intercalating Agents
Methods for the synthesis of N1, N8-bis(9-acridinyl)-N4-(4-hydroxybenzyl)spermidine and N1, N7-(hydroxybenzyl)-bis-(3-aminopropyl)amine were investigated. Thus monocyanoethylation of 4-methoxybenzylamine followed by treatment with 4chlorobutyronitrile gave the dinitrile N-(2-cyanoethyl)-N-(3-cyanopropyl)-4-methoxybenzylamine. Subsequent in situ reduction with lithium aluminium hydride gave the ...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1995
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/23.13.2413