A Catalog of Human STR Variation

Short Tandem Repeats (STRs) are a class of genetic variant that has been systematically understudied. To address this limitation, we've compiled a catalog of STR variation using over 1000 individuals from the 1000 Genomes Project.

To get started, explore one of the options below:

Search by STR

Select a subset of STRs based on their sequence properties and genomic locations

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Search by gene

Search for STRs in or around a gene of interest using RefSeq transcript annotations

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Search by population

Identify population-informative STRs based on their variability in a subset of populations

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In-depth stats

Visualize distributions of allele length and heterozygosity and the alignments supporting each allele

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