QCBio Research Seminar: Dongyuan Song (Li JJ), Graduate Student in Bioinformatics

ZOOM CA, United States

TITLE: "scDesign3: an all-in-one statistical framework that generates realistic single-cell omics data and infers cell heterogeneity structure." ABSTRACT: The generation of realistic synthetic data is essential for benchmarking numerous computation tools developed for single-cell omics data. Here we propose an all-in-one statistical framework that generates single-cell omics data from various cell heterogeneity structures, including discrete cell […]

QCBio Research Seminar: Xinzhou Ge (Li JJ), Postdoc in Statistics

ZOOM CA, United States

TITLE: "P-value-free solution to fix exaggerated false positives by popular differential expression methods." ABSTRACT: We report a surprising phenomenon that popular bioinformatics methods for identifying differentially expressed genes (DEG) between two conditions have unexpectedly high false discovery rates (FDRs) on large-sample-size RNA-seq datasets. Failed FDR control is likely due to the invalid p-values which rely on […]

QCBio Research Seminar: Apeksha Singh (Hoffmann), Graduate Student in Biomathematics

ZOOM CA, United States

TITLE: "Characterizing distinct cell states based on stimulus-response dynamics." ABSTRACT: Macrophages show remarkable functional pleiotropy that is dependent on microenvironmental context. Prior studies have characterized how polarizing cytokines alter epigenetic or signaling mechanisms, but how they affect specific macrophage functions has not been characterized systematically. One hallmark function of macrophages is to mount immune-threat appropriate […]

QCBio Research Seminar: Richard Law (Park), Graduate Student in Chemical and Biomolecular Engineering

ZOOM CA, United States

TITLE: "Quantitative flux analysis reveals redistribution of glycolytic pathways in dynamic nutrient environments." ABSTRACT: Optimal operation of metabolic fluxes is critical for an organism to be evolutionarily competitive. Textbook glycolysis is a conserved pathway that optimally utilizes carbohydrates for growth. However, it is unclear why some organisms simultaneously possess the parallel Entner-Doudoroff (ED) pathway, which […]

QCBio Research Seminar: Matthew Heffel (Luo), Graduate Student in Bioinformatics

ZOOM CA, United States

TITLE: "Multimodal Single-Cell Epigenomic Sequencing of the Developing Human Cerebral Cortex." ABSTRACT: Single cell epigenomic technologies allow the measurement of unique molecular signatures within cells, however cell type complexity remains highly enigmatic. Emerging methods have enabled multiple modalities of epigenomic sequencing to be gathered from the same cell. Single-nucleus methyl-3C sequencing (sn-m3C-seq) delivers the capacity to […]

QCBio Research Seminar: Chenghao (Trevor) Zhu (Boutros), Postdoc in Human Genetics

ZOOM CA, United States

TITLE: "moPepGen: a fast custom database generator from multi-omics data for proteogenomics." ABSTRACT: Cancers are driven by genomic variants such as SNV (single nucleotide variants) and INDEL, often accompanied by many transcriptional variants. Modern mass spectrometry based proteomics is able to identify and quantify peptides and proteins comprehensively, however the variant-harboring peptides that are absent […]