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Baylor College of Medicine

Liu Lab

The research interests of the Liu Lab include topics in:

Genomics

Transcription regulation

Disease genes prioritization

Machine learning


Lab NewsMore News


Our CRISPRcloud paper has been published in Bioinformatics!
| 24 May

CRISPRcloud: A secure cloud-based pipeline for CRISPR pooled screen deconvolution Hyun-Hwan Jeong, Seon Young Kim, Maxime WC Rousseaux, Huda

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Our MARRVEL paper has been published in AJHG!
| 11 May

MARRVEL: Integration of Human and Model Organism Genetic Resources to Facilitate Functional Annotation of the Human Genome Julia Wang*,

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LATEST SOFTWARES

Software developed by Liu lab members recently

We present a user-friendly, cloud-based, data analysis pipeline for the deconvolution of pooled screening data. This tool serves a dual purpose of extracting, clustering and analyzing raw next generation sequencing files derived from pooled screening experiments while at the same time presenting them in a user-friendly way on a secure web-based platform. Moreover, CRISPRcloud serves as a useful web-based analysis pipeline for reanalysis of pooled CRISPR screening datasets. Taken together, the framework described in this study is expected to accelerate development of web-based bioinformatics tool for handling all studies which include next generation sequencing data.

MARRVEL (Model organism Aggregated Resources for Rare Variant ExpLoration) aims to facilitate the use of public genetic resources to prioritize rare human gene variants for study in model organisms. To automate the search process and gather all the data in a simple display we extract data from human data bases (OMIM, ExAC, Geno2MP, DGV, and DECIPHER) for efficient variant prioritization. The protein sequences for six organisms (S. cerevisiae, C. elegans, D. melanogaster, D. rerio, M. musculus, and H. sapiens) are aligned with highlighted protein domain information via collaboration with DIOPT. The key biological and genetic features are then extracted from existing model organism databases (SGD, PomBase, WormBase, FlyBase, ZFIN, and MGI).

Alternative splicing of RNA is the key mechanism by which a single gene codes for multiple functionally diverse proteins. Recent studies identified previously unknown class of exons, ‘cryptic’ exons, in RNA transcripts. These cryptic exons are often associated with various human cancers and neurological disorders. Genome-wise detection of cryptic splice sites can facilitate a comprehensive understanding of the underlying disease mechanisms and develop strategies that hope to resolve cryptic splicing with the ultimate goal of therapeutic applications. CrypSplic is a novel cryptic splice site detection method. It uses beta-binomial distribution to model junction count data. Every junction is subjected to a beta binomial test w.r.t conditions and classified to aid molecular inferences.

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1250 Moursund St., Suite 1325
Houston, TX 77030
EMAIL
zhandong.liu at bcm dot edu