Structures from the human immune system's oldest branch shed light on a range of diseases

How molecules of the oldest branch of the human immune system have interconnected has remained a mystery. Now, two new structures, both involving a central component of an enzyme important to the complement system of the immune response, reveal how this system fights invading microbes while avoiding problems of the body attacking itself.

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<p><a href="http://www.physorg.com/news164455337.html">Structures from the human immune system's oldest branch shed light on a range of diseases</a></p> <p>How molecules of the oldest branch of the human immune system have interconnected has remained a mystery. Now, two new structures, both involving a central component of an enzyme important to the complement system of the immune response, reveal how this system fights invading microbes while avoiding problems of the body attacking itself.</p>