Software

Software Platforms

KGG (Knowledge-based mining system for Genome-wide Genetic studies) is a software tool to perform knowledge-based secondary analyses of p-values from genome-wide association studies (GWAS). The knowledge-based secondary analyses include gene-based, gene-pair-based and gene-set based association analysis.It is implemented by Java with a user-friendly graphic interface to facilitate data analysis and result visualization. Build on advanced algorithms, it is able to process up to 10 million variants in several hours with 15GB RAM on a workstation.

KGGSeq is a software platform constituted of Bioinformatics and statistical genetics functions making use of valuable biologic resources and knowledge for sequencing-based genetic mapping of variants/genes responsible for human diseases/traits. Simply, KGGSeq is like a fishing rod facilitating geneticists to fish the genetic determinants of human diseases/traits in the big sea of DNA sequences. Compared with other genetic tools like plink/seq, KGGSeq paid more attention downstream analysis of genetic mapping. Currently, a comprehensive and efficient framework was newly implemented on KGGSeq to filter and prioritize genetic variants from whole exome sequencing data.

KGGSEE is a standalone Java tool for knowledge-based secondary analyses of genomic and genetic association summary statistics of complex phenotypes by integrating gene expression and related data. It has four major integrative analyses, 1) unconditional gene-based association guided by expression quantitative trait loci (eQTLs), 2) conditional gene-based association guided by selective expression in tissues or cell types, 3) estimation of phenotype-associated tissues or cell-type based on gene expression in single-cell or bulk cells of different tissues, and 4) causal gene inference for complex diseases and/or traits based-on multiple eQTL. More integrative analysis functions will be added into this analysis platform in the future.

GenoType Block Compressor (GBC) is a set of tools for compressing, accessing and managing genotype data. It mainly includes a new genotype data block structure (GenoType Block, GTB) and a set of high-parallel IO frameworks that support this structure. GTB is a fast-addressable, uniformly byte-encoded data structure that helps users efficiently store and manage ultra-large-scale genotype data. At the same time, GBC can improve the read-write speed of block data by optimizing parallel compression and decompression processes to achieve super-fast access and management of massive genotype data. Replacing traditional VCF or GZ format with GTB format can significantly reduce disk space usage, achieve faster data access and extraction, more convenient population file management and more efficient data analysis functions.

FAPI is a powerful multi-thread Java-based application developed to infer p-values of untyped Single-nucleotide polymorphisms (SNPs) through p-values of SNPs in LD with the untyped one. With similar imputation accuracy to other genotype imputation tools (including IMPUTE and MACH), FAPI is superfast, without requiring phases of reference genotypes and any sample raw genotypes.

RNA-SSNV is a scalable and efficient analysis method for RNA somatic mutation detection from RNA-WES (tumor-normal) paired sequencing data which utilized Mutect2 as core-caller and Multi-filtering strategy & Machine-learning based model to maximize precision & recall performance. It runs highly automated once related configs & infos get configurated properly. It reports an aggregated mutation file (standard maf format) to facilitate downstream analysis and clinical decision.

SnpTracker is a Java-based tool developed to extract the latest version rsID and genomic coordinates of SNPs given any version of rs ID(s) according to the SNP track history RsMergeArch, coordinates data SNPChrPosOnRef and deleted history SNPHistory in dbSNP.

IGG is an open-source Java package with graphic interface to efficiently and consistently integrate genotypes across high throughput genotyping platforms (e.g., Affymetrix and Illumina), the HapMap genotype repository (http://www.hapmap.org/), and even genotypes from the collaborators’ projects. It is equipped with a series of functions to control qualities of genotype integration and to flexibly export genotypes for genetic studies as well.

The Genetic Type I error calculator (GEC) is a Java-based application developed to address multiple-testing issue with dependent Single-nucleotide polymorphisms (SNPs).

Web Apps

REZ (robust-regression z-score) is a powerful approach to calculate tissue selective expression of genes. The website provides query and tissue enrichment analysis of genes' selective expression produced by REZ.

PCGA, phenotype-cell-gene association analysis platform is a web server to simultaneously estimate associated tissues/cell types and genes of complex diseases and traits by GWAS summary statistics. PCGA has included 54 human tissues, 2,214 human single cell types and 4,384 mouse single cell types. Meanwhile, the website has analyzed 1,871 public GWASs of 1,588 unique phenotypes, which could be browsed and searched in the website.

Software Platforms

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