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  1. ..., Illinois 60628, USA ↵3 These authors contributed equally to this work. Corresponding author: zhe.ji@northwestern.eduAbstractWe describe a low-input RNase footprinting approach for the rapid quantification of ribosome-protected fragments with as few as 1000 cultured cells. The assay uses a simplified...
  2. ...was sequenced as “input,” whereas the remaining chromatin was prepared for low input chromatin immunoprecipitation (ChIP) sequencing (ChIP-seq) using antibodies against H3K4me3, H3K27me3, or H3K9me3 (Fig. 3A). We chose these histone modifications because they represent distinct chromatin domains: H3K4me3...
  3. ...for Biotechnology, Huntsville, Alabama 35806, USA; 6Department of Medicine, Division of Endocrinology & Metabolism, University of California San Diego, La Jolla, California 92093, USA Corresponding author: agoren@ucsd.eduAbstractChromatin immunoprecipitation followed by sequencing (ChIP-seq) is widely used to study...
  4. ...features in which a singular loop anchor interacts with a contiguous region of DNA so, at the bulk sequencing level, it appears as a long stripe on chromatin contact matrices. Stripes are thought to play an important role in gene regulation and have been implicated in regulating a cell's lineage...
  5. ...) Heat map showing sensitivity of PH-1 and mutants to various abiotic stresses. Growth inhibition of PH-1 under each condition was normalized to 1.0. Data are mean ± standard deviation (n = 3). For panels C, D, F, and H, data are presented as mean ± standard deviation (s.d.) from three independent...
  6. ...definition, a transcriptomic analysis can only identify readouts of expressed genes, but it cannot distinguish between genes being repressed or kept in a prone transcriptional state, because both are transcriptionally inactive.In bulk assays, the use of chromatin immunoprecipitation strategies...
  7. ...clusters can be challenging, restricting the import of sensitive data. Furthermore, importing large data sets (e.g., hundreds of thousands of individuals) and managing genomic annotations are also difficult. Commercial platforms, such as DNAnexus (https://www.dnanexus.com) and the suite of Qiagen products...
  8. ...sequence features, including transcription factor motifs that are central to cell type–specific chromatin accessibility.Evaluating model sensitivity to genetic point variantsExperimentally profiling chromatin accessibility for every genetic variant is prohibitively resource-intensive, highlighting the need...
  9. ...DNA (Supplemental Fig. S1D).Sperm ATAC-seq profiles are sensitive to cell-free chromatin contaminationOur initial efforts to probe sperm chromatin architecture were performed using the same “untreated” ATAC-seq conditions reported by Jung et al. (2017). Under these conditions, we robustly reproduce...
  10. ...indicating the standard deviation. (C) Histogram comparing the frequencies of log(TPM) values for confident (r ≥ 0.9) and nonconfident (r < 0.9) annotations of the transcribed chromatin state in the running example. The x-axis represents ranges of log(TPM) with each pair of bars corresponding to confident...
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