title: Simple and efficient identification of rare recessive pathologically important sequence variants from next generation exome sequence data.
abstract: Massively parallel ("next generation") DNA sequencing (NGS) has quickly become the method of choice for seeking pathogenic mutations in rare uncharacterized monogenic diseases. Typically, before DNA sequencing, protein-coding regions are enriched from patient genomic DNA, representing either the entire genome ("exome sequencing") or selected mapped candidate loci. Sequence variants, identified as differences between the patient's and the human genome reference sequences, are then filtered according to various quality parameters. Changes are screened against datasets of known polymorphisms, such as dbSNP and the 1000 Genomes Project, in the effort to narrow the list of candidate causative variants. An increasing number of commercial services now offer to both generate and align NGS data to a reference genome. This potentially allows small groups with limited computing infrastructure and informatics skills to utilize this technology. However, the capability to effectively filter and assess sequence variants is still an important bottleneck in the identification of deleterious sequence variants in both research and diagnostic settings. We have developed an approach to this problem comprising a user-friendly suite of programs that can interactively analyze, filter and screen data from enrichment-capture NGS data. These programs ("Agile Suite") are particularly suitable for small-scale gene discovery or for diagnostic analysis.
authors.affiliation: School of Medicine, University of Leeds, Leeds, United Kingdom. i.m.carr@leeds.ac.uk
authors.forename: Ian M
authors.initials: IM
authors.lastname: Carr
authors.forename: Joanne
authors.initials: J
authors.lastname: Morgan
authors.forename: Christopher
authors.initials: C
authors.lastname: Watson
authors.forename: Svitlana
authors.initials: S
authors.lastname: Melnik
authors.forename: Christine P
authors.initials: CP
authors.lastname: Diggle
authors.forename: Clare V
authors.initials: CV
authors.lastname: Logan
authors.forename: Sally M
authors.initials: SM
authors.lastname: Harrison
authors.forename: Graham R
authors.initials: GR
authors.lastname: Taylor
authors.forename: Sergio D J
authors.initials: SD
authors.lastname: Pena
authors.forename: Alexander F
authors.initials: AF
authors.lastname: Markham
authors.forename: Fowzan S
authors.initials: FS
authors.lastname: Alkuraya
authors.forename: Graeme C M
authors.initials: GC
authors.lastname: Black
authors.forename: Manir
authors.initials: M
authors.lastname: Ali
authors.forename: David T
authors.initials: DT
authors.lastname: Bonthron
mesh_terms: D019295:Computational Biology / Q000379:methods; D059472:Exome / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D014644:Genetic Variation; D015894:Genome, Human / Q000235:genetics; D006801:Humans; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D017422:Sequence Analysis, DNA / Q000379:methods*; D012984:Software