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JUNE 17, 2009
  Protein Structures from the Human Immune System’s Oldest Branch Shed Light on a Range of Diseases
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Molecular structure of factor H bound to C3b. In order to avoid self-attack, regulatory proteins such as factor H bind with C3b, a central component of the enzyme C3 convertase, to help the immune system recognize the body’s own tissue and keep complement in check.

Credit: John Lambris, PhD, University of Pennsylvania School of Medicine

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Molecular structure of factor H bound to C3b.
 


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