Journal: Viruses
Article Title: Targeted Chromatinization and Repression of HIV-1 Provirus Transcription with Repurposed CRISPR/Cas9
doi: 10.3390/v12101154
Figure Lengend Snippet: Identification of HIV-1 guide RNAs (gRNAs) that mediate disabled Cas9 (dCas9)- Kruppel-associated box (KRAB) repression. ( A ) Cartoon demonstrating locations targeted by gRNAs. ( B ) Repression of HIV transcription by gRNAs. HEK293T cells were cotransfected with NL4-3-Δ env -Luciferase, dCas9-KRAB, and the indicated guide RNAs. Negative controls included transfections with gRNAs only (black bars). HIV expression was monitored after 48 h by luciferase activity, which was normalized to control gRNA. Data represent averages of multiple experiments, with each guide being assessed in at least three independent experiments. Error bars represent standard error and Student t -test were performed to determine significance. * and ** indicate p ≤ 0.05 and p ≤ 0.01, respectively.
Article Snippet: Three hundred nM of Ultramer RNA Oligos gRNA constructs were used per condition using program X-005 on Nucleofector 2b Device (Lonza, Portsmouth, NH, USA).
Techniques: Luciferase, Transfection, Expressing, Activity Assay, Control