Used in research settings to detect and quantify the expression levels of the γ-tocopherol methyltransferase enzyme in plant samples. This ELISA kit enables scientists to study the biosynthesis pathway of vitamin E, particularly the conversion of γ-tocopherol to α-tocopherol, which has higher biological activity. It is valuable in plant physiology and genetic engineering studies aimed at enhancing the nutritional quality of crops. Researchers use it to evaluate transgenic plants or varying growth conditions for improved vitamin E content. The assay supports high-throughput analysis, making it suitable for breeding programs and functional genomics research.