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5 years ago Hi @VilainLab
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The DESCRIPTION file for this package is:
Package: nanotatoR
Title: nanotatoR: next generation structural variant annotation and classification
Version: 0.99.0
Author: Surajit Bhattacharya,Hayk Barsheghyan, Emmanuele C Delot and Eric Vilain
Maintainer: Surajit Bhattacharya <sbhattach2@childrensnational.org>
Description: Whole genome sequencing (WGS) has successfully been used to identify single-nucleotide variants (SNV), small insertions and deletions and, more recently, small copy number variants. However, due to utilization of short reads, it is not well suited for identification of structural variants (SV) and the majority of SV calling tools having high false positive and negative rates.Optical next-generation mapping (NGM) utilizes long fluorescently labeled native-state DNA molecules for de novo genome assembly to overcome the limitations of WGS. NGM allows for a significant increase in SV detection capability. However, accuracy of SV annotation is highly important for variant classification and filtration to determine pathogenicity.Here we create a new tool in R, for SV annotation, including population frequency and gene function and expression, using publicly available datasets. We use DGV (Database of Genomic Variants), which contains SVs from 7965 individuals, to calculate the population frequency of the SVs identified by the Bionano SVCaller in the NGM dataset of a cohort of 50 undiagnosed patients with a variety of phenotypes. The new annotation tool, nanotatoR, also calculates the internal frequency of SVs, which could be beneficial in identification of potential false positive or common calls. The software creates a primary gene list (PG) from NCBI databases based on patient phenotype and compares the list to the set of genes overlapping the patient’s SVs generated by SVCaller, providing analysts with an easy way to identify variants affecting genes in the PG. The output is given in an Excel file format, which is subdivided into multiple sheets based on SV type. Users then have a choice to filter SVs using the provided annotation for identification of inherited, de novo or rare variants. nanotatoR provides integrated annotation and the expression patterns to enable users to identify potential pathogenic SVs with greater precision and faster turnaround times.
Depends:
R (>= 3.4.3)
Imports:
hash(>= 2.2.6),
openxlsx(>= 4.0.17),
biomaRt(>= 2.34.2),
rentrez(>= 1.1.0),
stats,
grDevices,
graphics,
grDevices,
stringr,
graphics,
knitr,
utils
Suggests:
rmarkdown,
testthat,
yaml
VignetteBuilder:
knitr
License: GPL-2
biocViews: Software, WorkflowStep, Annotation
Encoding: UTF-8
LazyData: true
RoxygenNote: 6.1.0
URL: https://github.com/VilainLab/Nanotator
BugReports: https://github.com/VilainLab/Nanotator/issues
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