Answers
This the process of "Professional antigen-presenting cells process intracellular and extracellular pathogens."
A represnts - Exogenous pathway
B represnts - Endogenous pathway
C represnts - Extracellular pathogen
D represnts - Phagosome
E represnts - Entigen representaion to helper cells
F represnts - Virus
G represnts - Cytolplasm
H represnts - Endiplasmic reticulum
I represnts - Antigen presentation to CTLs (Cytotoxic T-lymphocytes)
ligands - T-cells and CTLs
MECHANISM OF ANTIGEN PROCESSING- The usual process of antigen presentation through the MHC I molecule is based on an interaction between the T-cell receptor and a peptide bound to the MHC class I molecule. There is also an interaction between the CD8+ molecule on the surface of the T cell and non-peptide binding regions on the MHC class I molecule, here some proteosome degradation is also involved.
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