Residence time of SYTOX Orange dye (binding time to DNA)

Range ~1 sec
Organism Unspecified
Reference Van Valen D et al., A single-molecule Hershey-Chase experiment. Curr Biol. 2012 Jul 24 22(14):1339-43. doi: 10.1016/j.cub.2012.05.023. p.1339 right column 2nd paragraphPubMed ID22727695
Primary Source [5] Yan X et al., (2005). Probing the kinetics of SYTOX Orange stain binding to double-stranded DNA with implications for DNA analysis. Anal. Chem. 77, 3554–3562.PubMed ID15924389
Method Primary source abstract:"Rapid binding kinetics of SYTOX Orange stain with double-stranded DNA (dsDNA) was revealed on the DNA fragment sizing flow cytometer."
Comments P.1339 right column 2nd paragraph:"As shown in Figure 2C, the ejection process is characterized by a loss of fluorescence intensity in the phage and a concomitant increase in fluorescence in the cellular interior (Figure 2D representative Movies S1 and S2). The fluorescence inside the cell is diffuse: this reflects the dye molecules unbinding kinetics from the phage DNA (residence time ~1 s [primary source]) and redistributing themselves along the host genome, as verified in the Supplemental Experimental Procedures (Figures S3B and S3C)." Primary source p.3560 right column:"As shown in Figure 6a, with [investigators'] universal staining protocol of using 500 nM SYTOX Orange to stain a wide range of DNA concentrations, binding equilibrium can be reached in less than 1s."
Entered by Uri M
ID 112340