Abstract
We describe a simple method for specific chemical labeling of DNA fragments at their 3'-termini. The procedure includes enzymatic addition of 4-thiouridine, followed by reaction in mild non-denaturing conditions with the highly reactive alpha-haloacetamido derivatives of several chemical labels. The attached reporter molecule can be removed by extended treatment with beta-mercaptoethanol. Among the potential applications of this labeling method is the study of specific protein-DNA interactions in solution.
Full text
PDF










Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Beardsley K., Cantor C. R. Studies of transfer RNA tertiary structure by singlet-singlet energy transfer. Proc Natl Acad Sci U S A. 1970 Jan;65(1):39–46. doi: 10.1073/pnas.65.1.39. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bollum F. J., Chang L. M., Tsiapalis C. M., Dorson J. W. Nucleotide polymerizing enzymes from calf thymus gland. Methods Enzymol. 1974;29:70–81. doi: 10.1016/0076-6879(74)29010-4. [DOI] [PubMed] [Google Scholar]
- Eshaghpour H., Crothers D. M. Preparative separation of the complementary strands of DNA restriction fragments by alkaline RPC-5 chromatography. Nucleic Acids Res. 1978 Jan;5(1):13–21. doi: 10.1093/nar/5.1.13. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hara H., Horiuchi T., Saneyoshi M., Nishimura S. 4-Thiouridine-specific spin-labeling of E. coli transfer RNA. Biochem Biophys Res Commun. 1970 Jan 23;38(2):305–311. doi: 10.1016/0006-291x(70)90713-8. [DOI] [PubMed] [Google Scholar]
- Hudson E. N., Weber G. Synthesis and characterization of two fluorescent sulfhydryl reagents. Biochemistry. 1973 Oct 9;12(21):4154–4161. doi: 10.1021/bi00745a019. [DOI] [PubMed] [Google Scholar]
- Klevan L., Crothers D. M. Isolation and characterization of a spacerless dinucleosome from H1-deleted chromatin. Nucleic Acids Res. 1977 Dec;4(12):4077–4089. doi: 10.1093/nar/4.12.4077. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kruse T. A., Clark B. F. The effect of specific structural modification on the biological activity of E. coli arginine tRNA. Nucleic Acids Res. 1978 Mar;5(3):879–892. doi: 10.1093/nar/5.3.879. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Maniatis T., Jeffrey A., van deSande H. Chain length determination of small double- and single-stranded DNA molecules by polyacrylamide gel electrophoresis. Biochemistry. 1975 Aug 26;14(17):3787–3794. doi: 10.1021/bi00688a010. [DOI] [PubMed] [Google Scholar]
- Ofengand J. The function of pseudouridylic acid in transfer ribonucleic acid. I. The specific cyanoethylation of pseudouridine, inosine, and 4-thiouridine by acrylonitrile. J Biol Chem. 1967 Nov 10;242(21):5034–5045. [PubMed] [Google Scholar]
- Roychoudhury R., Jay E., Wu R. Terminal labeling and addition of homopolymer tracts to duplex DNA fragments by terminal deoxynucleotidyl transferase. Nucleic Acids Res. 1976 Apr;3(4):863–877. doi: 10.1093/nar/3.4.863. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rozovskaia T. A., Bibilashvili P. Sh, Tarusova N. B., Gurskii G. V., Strel'tsov S. A. Vvedenie fluorestsentnoi metki na 3'OH-konets DNK i 3'-OH-konets rastushchei tsepi RNK. Mol Biol (Mosk) 1977 May-Jun;11(3):598–610. [PubMed] [Google Scholar]
- Schwartz I., Ofengand J. Photo-affinity labeling of tRNA binding sites in macromolecules. I. Linking of the phenacyl-p-azide of 4-thiouridine in (Escherichia coli) valyl-tRNA to 16S RNA at the ribosomal P site. Proc Natl Acad Sci U S A. 1974 Oct;71(10):3951–3955. doi: 10.1073/pnas.71.10.3951. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sollner-Webb B., Melchior W., Jr, Felsenfeld G. DNAase I, DNAase II and staphylococcal nuclease cut at different, yet symmetrically located, sites in the nucleosome core. Cell. 1978 Jul;14(3):611–627. doi: 10.1016/0092-8674(78)90246-5. [DOI] [PubMed] [Google Scholar]
- Sprinzl M., Siboska G. E., Pedersen J. A. Properies of tRNAPhe from yeast carrying a spin label on the 3'-terminal. Interaction with yeast phenylalanyl-tRNA Synthetase and elongation factor Tu from Escherichia coli. Nucleic Acids Res. 1978 Mar;5(3):861–877. doi: 10.1093/nar/5.3.861. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Szabo L., Kalman T. I., Bardos T. J. The reaction of 5-bromouracil derivatives with sulfur nucleophiles, and a novel synthetic route to 5-sulfur-substituted uracils and nucleotides. J Org Chem. 1970 May;35(5):1434–1437. doi: 10.1021/jo00830a038. [DOI] [PubMed] [Google Scholar]
- Wetzel R., Söll D. Analogs of methionyl-tRNA synthetase substrates containing photolabile groups. Nucleic Acids Res. 1977;4(5):1681–1694. doi: 10.1093/nar/4.5.1681. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yang C. H., Söll D. Studies of transfer RNA tertiary structure of singlet-singlet energy transfer. Proc Natl Acad Sci U S A. 1974 Jul;71(7):2838–2842. doi: 10.1073/pnas.71.7.2838. [DOI] [PMC free article] [PubMed] [Google Scholar]

