ScEnhancer: a Single-cell Enhancer Resource with Annotation Across Hundreds of Tissue/cell Types in Three Species
Overview
Authors
Affiliations
Previous studies on enhancers and their target genes were largely based on bulk samples that represent 'average' regulatory activities from a large population of millions of cells, masking the heterogeneity and important effects from the sub-populations. In recent years, single-cell sequencing technology has enabled the profiling of open chromatin accessibility at the single-cell level (scATAC-seq), which can be used to annotate the enhancers and promoters in specific cell types. A comprehensive resource is highly desirable for exploring how the enhancers regulate the target genes at the single-cell level. Hence, we designed a single-cell database scEnhancer (http://enhanceratlas.net/scenhancer/), covering 14 527 776 enhancers and 63 658 600 enhancer-gene interactions from 1 196 906 single cells across 775 tissue/cell types in three species. An unsupervised learning method was employed to sort and combine tens or hundreds of single cells in each tissue/cell type to obtain the consensus enhancers. In addition, we utilized a cis-regulatory network algorithm to identify the enhancer-gene connections. Finally, we provided a user-friendly platform with seven useful modules to search, visualize, and browse the enhancers/genes. This database will facilitate the research community towards a functional analysis of enhancers at the single-cell level.
scBlood: A comprehensive single-cell accessible chromatin database of blood cells.
Zhao Y, Yu Z, Cui T, Li L, Li Y, Qian F Comput Struct Biotechnol J. 2024; 23:2746-2753.
PMID: 39050785 PMC: 11266868. DOI: 10.1016/j.csbj.2024.06.015.
Mulero-Hernandez J, Mironov V, Minarro-Gimenez J, Kuiper M, Fernandez-Breis J Nucleic Acids Res. 2024; 52(15):e69.
PMID: 38967009 PMC: 11347148. DOI: 10.1093/nar/gkae566.
Zhang W, Cui Y, Liu B, Loza M, Park S, Nakai K Brief Bioinform. 2024; 25(3).
PMID: 38581422 PMC: 10998639. DOI: 10.1093/bib/bbae152.
scATAC-Ref: a reference of scATAC-seq with known cell labels in multiple species.
Qian F, Zhou L, Zhu Y, Li Y, Yu Z, Feng C Nucleic Acids Res. 2023; 52(D1):D285-D292.
PMID: 37897340 PMC: 10767920. DOI: 10.1093/nar/gkad924.
MethMarkerDB: a comprehensive cancer DNA methylation biomarker database.
Zhu Z, Zhou Q, Sun Y, Lai F, Wang Z, Hao Z Nucleic Acids Res. 2023; 52(D1):D1380-D1392.
PMID: 37889076 PMC: 10767949. DOI: 10.1093/nar/gkad923.