Next, we examined the frequency of CXCR4 DNA disruption over time with the surveyor
nuclease assay.
In the presence of Bk132, treatment with X4 - ZFNs conferred protection at 14 d.p.i (p =.05); however, this protection wanes by 34 d.p.i. (p =.88)(B) Cxcr4 disruption frequency was assessed by the surveyor
nuclease assay in both peripheral blood (p <.001) and spleen (p <.001).
Cell growth was monitored every 48 hours post-stimulation for approximately two weeks and the efficiency of CXCR4 disruption was assessed at day five post-transduction by both the Surveyor
nuclease assay and by deep - sequencing of the CXCR4 target site.
For humanized mice samples, whole genome amplification using the REPLI - g Mini Kit (Qiagen) was conducted prior to the surveyor
nuclease assay due to limiting cell numbers.
Together the stable disruption of CXCR4 as determined by both the surveyor
nuclease assay and flow cytometry suggests that CXCR4 disruption did not negatively impact cell viability or growth in humanized NSG mice over a two - month period.
Development and evaluation of a fluorogenic 5 ′
nuclease assay to detect and differentiate between Ebola virus subtypes Zaire and Sudan
Not exact matches
The treated PCR products were diluted with 50 uL of
nuclease - free water before Quant - IT ™ PicoGreen ® dsDNA
Assay Kit quantification (http://www.lifetechnologies.com) on a plate reader.
In a paper appearing online today in the journal Nature, the team reports the results of biochemical
assays which demonstrate that mZuc has no phospholipase activity and that it does in fact possess
nuclease activity.
Each
assay (15 µL total volue) contained
nuclease free water (5 - 10 µL), cDNA template (2 ng / µL), and gene - specific primers (4.5 pm / µL).