The Kinney Lab uses a tightly-knit combination of experiments, computation, and mathematical theory to study the biophysical mechanisms of gene regulation. Our experimental work uses massively parallel reporter assays (MPRAs) to measure the effects that variant gene regulatory sequences have on gene expression. We pursue this experimental work in two biological contexts: alternative mRNA splicing in human cells and transcriptional regulation in bacteria. Our theoretical and computational work develops methods for analyzing the data produced by MPRAs and other highly multiplexed assays. We aim to extract biophysically meaningful models of regulatory sequence function, but also to understand the quantitative nature of sequence-function relationships more broadly. These efforts include deploying robust software for use by the larger genomics community.