Used in biomedical research to quantify expression levels of the paternal gene 2 (PEG2) in rat tissue samples or biological fluids. This ELISA kit enables researchers to study genomic imprinting, fetal development, and placental function by measuring PEG2 protein concentration with high sensitivity and specificity. It is commonly applied in reproductive toxicology, developmental biology, and epigenetic studies to assess changes in gene expression under experimental conditions. The assay supports rapid screening and data collection in studies related to pregnancy disorders, growth regulation, and inherited diseases linked to imprinted genes.