Journal: STAR Protocols
Article Title: Protocol to investigate bivalent histone modification dynamics via chromatin immunoprecipitation followed by re-chromatin immunoprecipitation
doi: 10.1016/j.xpro.2025.103804
Figure Lengend Snippet: ChIP-ReChIP assay (A) ChIP-seq IGV snapshots of H3K27me3 and H3K4me3 enrichment at GA3ox1 . Horizontal black lines represent the different amplicons used in ChIP-qPCR and indicate the positions of three designed qPCR primer pairs (P1, P2, P3) within the target region. This figure is adapted from Figure S5C in Shao et al. (B) Summary of the qPCR primers used for ChIP analysis, For each primer pair, forward (F) and reverse (R) primer sequences, amplicon sizes (bp), and average Ct values from technical triplicates in qPCR were listed. The same amount of DNA template (100 ng Arabidopsis genomic DNA) was used for each qPCR reaction. (C) Primer amplification efficiency measured as 2 -Ct . The bar graph illustrates that P2 exhibits significantly lower efficiency compared to P1 and P3. Error bars represent standard deviation (SD) from technical triplicates and each data point was plotted as a dot.
Article Snippet: 7. qPCR Primer Design, Efficiency Testing, and Validation for ChIP Experiments.
Techniques: ChIP-sequencing, ChIP-qPCR, Amplification, Standard Deviation