CZ5226: Advanced Bioinformatics Lecture 3: MHC Molecules Prof

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CZ5226: Advanced Bioinformatics Lecture 3: MHC Molecules Prof CZ5226: Advanced Bioinformatics Lecture 3: MHC Molecules Prof. Chen Yu Zong Tel: 6874-6877 Email: csccyz@nus.edu.sg http://xin.cz3.nus.edu.sg Room 07-24, level 7, SOC1, National University of Singapore

MHC in Immune System

MHC in Immune System

MHC in Immune System

MHC in Immune System

MHC in Immune System

MHC in Immune System

T-Cell Recognition of Peptide Antigen through MHC-peptide complex

T-Cell Recognition of Allogeneic MHC

Classes of MHC

Antigen capture and display

Antigen capture and display

Cross Presentation of Antigens

MHC Genes

MHC Genes

MHC Genes

Properties of MHC genes

Properties of MHC genes

Properties of MHC Genes

Properties of MHC Genes

Properties of MHC Genes

Structure of MHC

MHC Gene and Protein Structure

MHC protein structure

MHC protein structure

Peptide Binding to MHC

Peptide Binding to MHC

MHC-peptide structure

MHC-peptide structure

Peptide Binding to MHC

Peptide Binding to MHC

Peptide Binding to MHC

Peptide Binding to MHC

Peptide Binding to MHC

MHC and Diseases

MHC and Diseases

Summary of MHC MHC-I consist of an alpha chain and beta-2 microglobulin and present endogenous peptides to T lymphocytes, which are processed by the cytosolic pathway in APC. MHC-II have alpha and beta chains and present to T cells exogenous peptides processed by the endocytic pathway. Non-classical MHC are involved in antigen processing, presentation and tolerance induction. Minor H antigens are genetic variants of peptides presented by MHC to T cells and cause graft rejection and graft versus host reaction. HLA has an association with autoimmune disease due to its capacity of altering antigen presentation and clearance, lympocyte activation and tolerance induction.

Summary of Today’s lecture Adaptive immune system Comparison between innate and adaptive immune system Relevant cells and related molecules