
This composite image shows the combined structure of Coxsackievirus A21 and a "receptor molecule" called ICAM-1.Biologists at Purdue University have determined the combined structure of a common-cold virus attached to a molecule that enables the virus to infect its host, information that ultimately may help researchers develop methods for treating certain viral infections.
Coxsackievirus A21 infects host cells first by recognizing a "receptor molecule" called ICAM-1, which is located on the cell's surface, and then by anchoring itself to the molecule. ICAM-1 stands for intracellular adhesion molecule 1.