Abstract:In Arabidopsis thaliana, the arsenic induced gene At4g13180 encoding protein is one of the members of the SDR superfamily (ShortChain Dehydrogenase/Reductase). Its overexpression can enhance the resistance of plants to hydrogen peroxide. Here we studied the At4g13180 gene expression pattern and the encoded protein subcellular localization by semiquantitative RTPCR, with transgenic plants expressing ProAt4g13180:GUS, At4g13180EGFP and At4g13180OE. Our results show that the At4g13180 gene has a very strong expression in tissues such as root, leaf, sepal, and stamen filamentas. At4g13180EGFP is located in the nucleus and cytoplasm. Our study lays a basis of further research on the role of the arsenic induced gene At4g13180 in A. thaliana.