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Updated: Feb 22, 2026

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
Published on: January 16, 2019
Cloud-based interactive analytics for terabytes of genomic variants data
Cuiping Pan1,2, Gregory McInnes1,3, Nicole Deflaux4,5
1VA Palo Alto Health Care System, Palo Alto Epidemiology Research and Information Center for Genomics, CA 94304, USA.
Motivation:
Large scale genomic sequencing is now widely used to decipher questions in diverse realms such as biological function, human diseases, evolution, ecosystems, and agriculture. With the quantity and diversity these data harbor, a robust and scalable data handling and analysis solution is desired.
Results:
We present interactive analytics using a cloud-based columnar database built on Dremel to perform information compression, comprehensive quality controls, and biological information retrieval in large volumes of genomic data. We demonstrate such Big Data computing paradigms can provide orders of magnitude faster turnaround for common genomic analyses, transforming long-running batch jobs submitted via a Linux shell into questions that can be asked from a web browser in seconds. Using this method, we assessed a study population of 475 deeply sequenced human genomes for genomic call rate, genotype and allele frequency distribution, variant density across the genome, and pharmacogenomic information.
Availability And Implementation:
Our analysis framework is implemented in Google Cloud Platform and BigQuery. Codes are available at https://github.com/StanfordBioinformatics/mvp_aaa_codelabs.
Contact:
cuiping@stanford.edu or ptsao@stanford.edu.
Supplementary Information:
Supplementary data are available at Bioinformatics online.
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