Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… … Wikipedia
Major histocompatibility complex — The major histocompatibility complex (MHC) is a large genomic region or gene family found in most vertebrates that encodes MHC molecules. MHC molecules play an important role in the immune system and autoimmunity. Proteins are continually… … Wikipedia
Receptor (biochemistry) — For other uses, see Receptor (disambiguation). In biochemistry, a receptor is a molecule found on the surface of a cell, which receives specific chemical signals from neighbouring cells or the wider environment within an organism. These signals… … Wikipedia
CD4 — For other uses, see CD 4 (disambiguation). CD4 molecule Crystallographic structure of the V set and C2 domains of human CD4.[1] … Wikipedia
MHC class I — Schematic representation of MHC class I MHC class I molecules are one of two primary classes of major histocompatibility complex (MHC) molecules (the other one being MHC class II) and are found on every nucleated cell of the body (and thus not on … Wikipedia
Cyclophilin — peptidylprolyl isomerase A (cyclophilin A) Ribbon diagram of cyclophilin A in complex with ciclosporin (yellow). From PDB 1CWA … Wikipedia
Fc receptor — An Fc receptor is a protein found on the surface of certain cells including natural killer cells, macrophages, neutrophils, and mast cells that contribute to the protective functions of the immune system.Its name is derived from its binding… … Wikipedia
Complement receptor 2 — Complement component (3d/Epstein Barr virus) receptor 2 PDB rendering based on 1ghq … Wikipedia
MHC class II — Schematic representation of MHC class II MHC (major histocompatibility complex) Class II molecules are found only on a few specialized cell types, including macrophages, dendritic cells and B cells, all of which are professional antigen… … Wikipedia
Neonatal Fc receptor — Fc fragment of IgG, receptor, transporter, alpha Identifiers Symbol FCGRT Entrez 2217 HUGO … Wikipedia