Scientists seek to disarm TB's 'molecular weapon'

Left: The structure of the ESAT-6/CFP-10 complex. Note the 'long arm' on the right side of CFP-10. When this is intact, it allows the complex to attach to the outside of host white blood cells (central, the intense green shows a high amount of the complex binding). When the long arm is cleaved off, the complex shows greatly reduced attachment (right). © University of Leicester