PMID:9762101
| Citation |
Thomas, KA and Schechter, AN (1978) Direct physical measurements on substituted agarose gels: evidence for intercalation of gel-bound ethidium into transfer RNA. Anal. Biochem. 91:209-23 |
|---|---|
| Abstract |
The cation of the salt ethidium bromide (3,8-diamino-5-ethyl-6-phenylphenanthridinium bromide) has been covalently linked to an agarose matrix through an intermediate 3,3'-diaminodipropylaminosuccinyl spacer arm. Partition binding and visible absorption spectral measurements on the gel were used to monitor the binding of transfer RNA to the covalently bound ethidium group. Direct fluorescence measurements of the formation of the gel-bound complex indicate that this binding involves the intercalation of the ethidium groups into the tRNA molecule. Dissociation of the ethidium-tRNA complex was monitored as a function of sodium chloride concentration by both direct solution spectral measurement of the released tRNA and by fluorescence quenching measurements of the dissociation of the intercalation complex. The derivatized gel has been shown to be capable of the fractionation of tRNA species by elution with a positive salt gradient under column flow conditions. |
| Links | |
| Keywords |
Chromatography, Affinity/methods; Chromatography, Agarose/methods; Ethidium; Fluorescent Dyes; Gels; Intercalating Agents; RNA, Bacterial/isolation & purification; RNA, Transfer/isolation & purification; Spectrometry, Fluorescence |
| edit table |
Significance
You can help EcoliWiki by summarizing why this paper is useful
Useful Materials and Methods
You can help Ecoliwiki by describing the useful materials (strains, plasmids, antibodies, etc) described in this paper.
Annotations
<annotationlinks/>
EcoliWiki Links
Add links to pages that link here (e.g. gene, product, method pages)
References
See Help:References for how to manage references in EcoliWiki.