Characterizing the contribution of short tandem repeats to human phenotypes.
Lead Institution:
University of California, San Diego
Principal investigator:
Dr Melissa Gymrek
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About
Short Tandem Repeats (STRs) are a class of genetic variation comprising of repeated short sequences of DNA in the genome. Several dozen STRs are known to contribute to human diseases, including Huntington's Disease and Fragile X Syndrome. However there are more than 1 million STRs in the human genome, most of which remain uncharacterized.
Traditionally studying the role of STRs has been difficult since they are complex to analyze and are not directly captured by most genetics studies. We recently developed a resource that allows to analyze STRs in large datasets where they were not directly genotyped using a technique known as imputation. Here, we will leverage this resource to identify the contribution of STRs to a variety of traits in humans.
We expect that imputing STR in the UK Biobank data and performing association tests will take up to 1 year with 1-2 years follow up work to evaluate and interpret our results. We expect our study will identify a novel class of genetic variation with widespread impact on a variety of human traits.