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Major Histocompatability Complexes (view source)
Revision as of 15:29, 28 August 2008
, 15:29, 28 August 2008→MHC I
==MHC I==
==MHC I==
[[Image:MHC I.jpg|thumb|200px|right|'''MHC I presentation pathway, courtesy of B. Catchpole, 2008''']]
[[Image:MHC I processing.jpg|thumb|200px|right|'''MHC I presentation pathway, courtesy of B. Catchpole, 2008''']]
===Structure===
===Structure===
* MHC class I is expressed on virtually all nucleated cells
* MHC class I is expressed on virtually all nucleated cells
* Only MHC class I that is associated with peptide will be expressed at the surface
* Only MHC class I that is associated with peptide will be expressed at the surface
** The immune system is therefore able to see antigen from intracleeular pathogens
** The immune system is therefore able to see antigen from intracleeular pathogens
==MHC II==
==MHC II==