Abstract:In order to understand the molecular mechanisms of rice responding to heavy metal stress, the structure characteristics and expression pattern of OsMTP2, a metal tolerance protein in rice, were studied by using bioinformatics method. The results showed that OsMTP2 was consisted of 415 amino acids with strong hydrophobicity. mRNA in situ hybridization experiment showed that OsMTP2 gene mainly expressed in leaf vascular bundle, while no signals were detected in roots and anthers. It suggested that OsMTP2 transcripts may mainly occure in transfusion tissues and play an important role in metal transport.