Package: scGate Type: Package Title: Marker-Based Cell Type Purification for Single-Cell Sequencing Data Version: 1.7.3 Authors@R: c( person('Massimo', 'Andreatta', email = 'massimo.andreatta@unige.ch', role = c('aut','cre'), comment = c(ORCID = '0000-0002-8036-2647')), person('Ariel','Berenstein', email = 'arieljberenstein@gmail.com', role = c('aut'), comment = c(ORCID = '0000-0001-8540-5389')), person('Josep','Garnica', email = 'josep.garnicacaparros@unige.ch', role = c('aut')), person('Santiago', 'Carmona', email = 'santiago.carmona@unige.ch', role = c('aut'), comment = c(ORCID = '0000-0002-2495-0671')) ) Description: A common bioinformatics task in single-cell data analysis is to purify a cell type or cell population of interest from heterogeneous datasets. 'scGate' automatizes marker-based purification of specific cell populations, without requiring training data or reference gene expression profiles. Briefly, 'scGate' takes as input: i) a gene expression matrix stored in a 'Seurat' object and ii) a “gating model” (GM), consisting of a set of marker genes that define the cell population of interest. The GM can be as simple as a single marker gene, or a combination of positive and negative markers. More complex GMs can be constructed in a hierarchical fashion, akin to gating strategies employed in flow cytometry. 'scGate' evaluates the strength of signature marker expression in each cell using the rank-based method 'UCell', and then performs k-nearest neighbor (kNN) smoothing by calculating the mean 'UCell' score across neighboring cells. kNN-smoothing aims at compensating for the large degree of sparsity in scRNA-seq data. Finally, a universal threshold over kNN-smoothed signature scores is applied in binary decision trees generated from the user-provided gating model, to annotate cells as either “pure” or “impure”, with respect to the cell population of interest. See the related publication Andreatta et al. (2022) . biocViews: Depends: R (>= 4.3.0) Imports: Seurat (>= 4.0.0), UCell (>= 2.6.0), dplyr, stats, utils, methods, patchwork, ggridges, colorspace, reshape2, ggplot2, BiocParallel Suggests: ggparty, partykit, knitr, rmarkdown VignetteBuilder: knitr URL: https://github.com/carmonalab/scGate BugReports: https://github.com/carmonalab/scGate/issues License: GPL-3 Encoding: UTF-8 LazyData: true RoxygenNote: 7.3.2 Config/pak/sysreqs: cmake libglpk-dev make libicu-dev libpng-dev libuv1-dev libxml2-dev libssl-dev python3 zlib1g-dev Repository: https://carmonalab.r-universe.dev Date/Publication: 2026-03-13 11:17:21 UTC RemoteUrl: https://github.com/carmonalab/scGate RemoteRef: HEAD RemoteSha: 14dcede8f60298fddd2c47aa139e3edffbb31386 NeedsCompilation: no Packaged: 2026-06-21 09:13:25 UTC; root Author: Massimo Andreatta [aut, cre] (ORCID: ), Ariel Berenstein [aut] (ORCID: ), Josep Garnica [aut], Santiago Carmona [aut] (ORCID: ) Maintainer: Massimo Andreatta