Major histocompatibility complex serves as the identification fingerprint for?

Answer:
Well, there is not really a short answer for it:
1) there are 2 class of MHC:
HLA/MHC-I: binds to CD8 T cells
HLA/MHC-II: binds to CD4 T cells

A physician has to check for a good match of the MHC subtypes in a transplation between graft and host. A good match reduces the risk of immune complications after the transplantation.
First answer by Feanor. Last edit by Feanor. Contributor trust: 5 [recommend contributor recommended]. Question popularity: 2 [recommend question].