title: mirTrios: an integrated pipeline for detection of de novo and rare inherited mutations from trios-based next-generation sequencing.
abstract: OBJECTIVE
  Recently, several studies documented that de novo mutations (DNMs) play important roles in the aetiology of sporadic diseases. Next-generation sequencing (NGS) enables variant calling at single-base resolution on a genome-wide scale. However, accurate identification of DNMs from NGS data still remains a major challenge. We developed mirTrios, a web server, to accurately detect DNMs and rare inherited mutations from NGS data in sporadic diseases.
  
  
  METHODS
  The expectation-maximisation (EM) model was adopted to accurately identify DNMs from variant call files of a trio generated by GATK (Genome Analysis Toolkit). The GATK results, which contain certain basic properties (such as PL, PRT and PART), are iteratively integrated into the EM model to strike a threshold for DNMs detection. Training sets of true and false positive DNMs in the EM model were built from whole genome sequencing data of 64 trios.
  
  
  RESULTS
  With our in-house whole exome sequencing datasets from 20 trios, mirTrios totally identified 27 DNMs in the coding region, 25 of which (92.6%) are validated as true positives. In addition, to facilitate the interpretation of diverse mutations, mirTrios can also be employed in the identification of rare inherited mutations. Embedded with abundant annotation of DNMs and rare inherited mutations, mirTrios also supports known diagnostic variants and causative gene identification, as well as the prioritisation of novel and promising candidate genes.
  
  
  CONCLUSIONS
  mirTrios provides an intuitive interface for the general geneticist and clinician, and can be widely used for detection of DNMs and rare inherited mutations, and annotation in sporadic diseases. mirTrios is freely available at http://centre.bioinformatics.zj.cn/mirTrios/.
authors.affiliation: Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China State Key Laboratory of Medical Genetics, Central South University, Changsha, China.
authors.forename: Jinchen
authors.initials: J
authors.lastname: Li
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Huiqian
authors.initials: H
authors.lastname: Chen
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Xie
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Qianzhi
authors.initials: Q
authors.lastname: Shao
authors.affiliation: Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Ran
authors.affiliation: State Key Laboratory of Medical Genetics, Central South University, Changsha, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Xia
authors.affiliation: Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Zhong Sheng
authors.initials: ZS
authors.lastname: Sun
authors.affiliation: Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, China.
authors.forename: Jinyu
authors.initials: J
authors.lastname: Wu
mesh_terms: D019295:Computational Biology / Q000379:methods*; D004252:DNA Mutational Analysis / Q000379:methods*; D005820:Genetic Testing / Q000379:methods*; D059014:High-Throughput Nucleotide Sequencing / Q000379:methods*; D006801:Humans; D008957:Models, Genetic; D009154:Mutation; D017422:Sequence Analysis, DNA / Q000379:methods*
keywords: de novo mutations; mirTrios; rare inherited mutations; sporadic diseases