Used in research settings to quantitatively measure Cyclin D3 protein levels in rat biological samples such as cell lysates, tissue homogenates, and serum. This ELISA kit is particularly useful in studies related to cell cycle regulation, proliferation, and cancer research, where Cyclin D3 plays a key role in G1 to S phase transition. It enables high-throughput analysis with high sensitivity and specificity, allowing researchers to monitor changes in Cyclin D3 expression under various experimental conditions, including drug treatment, gene knockdown, or disease models.