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snATACutils

The utilities for single nucleus ATAC-seq analysis.

  • Please find useful scirpts and codes in folder bin.
  • We dissect the analysis into multiple steps, detailed description can be find in corresponding folders.
  • This package is still under active development.

Table of Contents

- 00.data processing

This directory contains several necessary steps, including reads mapping, duplicates removal, matrix calculation and generation, quality control, doublets removel, etc.

- 01.cell_clustering

This directory contains the basic and advanced steps for cell clustering. for small datasets, basic clustering strategy should work. for large/multiple datasets, more steps need to be included.

- 02.cluster_analysis

We shared additional scripts for more detailed analysis, including cell clustering refinement, integration analysis with other modalities (i.e. snRNA-seq);

- 03.peak_calling

To correct potential bias due to different depth/number of cells, we optimized peak calling pipeline for snATAC-seq

- 04.peak_analysis

Clustering of shared and cell-type specific candidate cis-regulatory elements (cCREs) Identification of cell-type/regional specific cCREs

- 05.LDSC analysis

Linkage disequilibrium score regression (LDSR or LDSC) analysis on cis-regulatory elements (cCREs) based on summary statistics from genome-wide association studies (GWASs)

- others

We shared few useful scripts in folder bin/:

  • phastCons score calculation in genomic regions;
  • script for generating IGV session file, which can be directly load to genome browser
  • loomR to seurat object convertor
  • loomR to matrix convertor
  • script for calculate silhouette score for each cell clustering

- flagship2020:

Supplementary tables for putative enhancers identified in flagship paper

Requirements

  • python v3.6.8
  • R v3.6.0
  • Perl v5.26.2

This pipeline is build on multiple softwares and tools:

Reference and annotation:

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