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Major histocompatibility complex
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The major histocompatibility complex (MHC) is a large locus on vertebrate DNA containing a set of closely linked polymorphic genes that code for cell surface proteins essential for the adaptive immune system. These cell surface proteins are called MHC molecules.
Major histocompatibility complex protein (class I) in orange and pink, with a presented peptide in red. Membrane in grey. The transmembrane and cytopl
Major histocompatibility complex protein (class I) in orange and pink, with a presented peptide in red. Membrane in grey. The transmembrane and cytoplasmic domains are shown in cartoon form. (PDB: 1hsa​)
Schematic view of MHC class I and MHC class II molecules
Schematic view of MHC class I and MHC class II molecules
T-cell receptor complexed with MHC-I and MHC-II
T-cell receptor complexed with MHC-I and MHC-II
Adaptive immune system
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The adaptive immune system, also known as the acquired immune system, or specific immune system is a subsystem of the immune system that is composed of specialized, systemic cells and processes that eliminate pathogens or prevent their growth. The acquired immune system is one of the two main immunity strategies found in vertebrates.
A scanning electron microscope image of a single human lymphocyte
A scanning electron microscope image of a single human lymphocyte