Biochemists have identified molecular structures that allow the immune system to tell friend from foe. The researchers identified and crystallized a complex that forms the contact point between the healthy human cell and the complement system. Using nuclear magnetic resonance spectroscopy and X-ray structure analysis, they were able to solve the molecular structure of the complex. It is composed of a glycan containing sialic acid and two domains of the complement system regulator, factor H.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VNF8v6gnWTo/141125091114.htm
Sialic acid shields human cells from attack by immune system
25 noviembre 2014
Volver