Welcome to the Stehle lab home page. We try to uncover the precise atomic architecture of one of life's key molecules, the protein. For example, we look at the proteins crucial for virus infection. These molecules sit on the surface of the virus particle and enable it to enter the host cell. We also look at the make-up of bacterial proteins and try to pinpoint their weak spots which may become the target of a future drug. In addition, based on their structure, we try to deduce how receptor proteins on the cell surface do their jobs of relaying information from the outside to the inside of the cell.