CD4 immunoadhesin: CD4 immunoadhesin is a recombinant fusion protein consisting of a combination of CD4 and the fragment crystallizable region.SeroconversionImmunoglobulin heavy chainLennox–Gastaut syndromeImmunoglobulin light chainFramework region: In molecular biology, a framework region is a region in the variable domain of a protein which belongs to the immunoglobulin superfamily, and which is less "variable" than the CDR.Sieved ultraspherical polynomials: In mathematics, the two families c(x;k) and B(x;k) of sieved ultraspherical polynomials, introduced by Waleed Al-Salam, W.R.Immunoglobulin class switching: Immunoglobulin class switching, also known as isotype switching, isotypic commutation or class-switch recombination (CSR), is a biological mechanism that changes a B cell's production of immunoglobulin (antibodies) from one type to another, such as from the isotype IgM to the isotype IgG. During this process, the constant-region portion of the antibody heavy chain is changed, but the variable region of the heavy chain stays the same (the terms "variable" and "constant" refer to changes or lack thereof between antibodies that target different epitopes).Polyclonal B cell response: Polyclonal B cell response is a natural mode of immune response exhibited by the adaptive immune system of mammals. It ensures that a single antigen is recognized and attacked through its overlapping parts, called epitopes, by multiple clones of B cell.Fragment antigen-binding: The fragment antigen-binding (Fab fragment) is a region on an antibody that binds to antigens. It is composed of one constant and one variable domain of each of the heavy and the light chain.ATC code J06: ==J06A Immune sera==Diary TourEva Engvall: Eva Engvall, born 1940, is one of the scientists who invented ELISA in 1971.Eva Engvall, The Scientist 1995, 9(18):8Somatic hypermutation: Somatic hypermutation (or SHM) is a cellular mechanism by which the immune system adapts to the new foreign elements that confront it (e.g.PlasmacytomaAnti-idiotypic vaccine: Anti-idiotypic vaccines comprise antibodies that have three-dimensional immunogenic regions, designated idiotopes, that consist of protein sequences that bind to cell receptors. Idiotopes are aggregated into idiotypes specific of their target antigen.Coles PhillipsSecretory componentMonoclonal antibody therapyHypogammaglobulinemiaSymmetry element: A symmetry element is a point of reference about which symmetry operations can take place. In particular, symmetry elements can be centers of inversion, axes of rotation and mirror planes.Colostrum: Colostrum (also known colloquially as beestings,Gottstein, Michael. Colostrum is vital ingredient to keep newborn lambs alive.Hyperimmune globulin: Hyperimmune globulin is similar to intravenous immunoglobulin (IVIG) except that it is prepared from the plasma of donors with high titers of antibody against a specific organism or antigen. Some agents against which hyperimmune globulins are available include hepatitis B, rabies, tetanus toxin, varicella-zoster, etc.Raji cell: Raji cell line is the first continuous human cell line from hematopoietic origin. The cell lines produce an unusual strain of Epstein-Barr virus which will both transform cord blood lymphocytes and induce early antigens in Raji cells.Immunoelectrophoresis: Immunoelectrophoresis is a general name for a number of biochemical methods for separation and characterization of proteins based on electrophoresis and reaction with antibodies. All variants of immunoelectrophoresis require immunoglobulins, also known as antibodies, reacting with the proteins to be separated or characterized.Protein primary structure: The primary structure of a peptide or protein is the linear sequence of its amino acid structural units, and partly comprises its overall biomolecular structure. By convention, the primary structure of a protein is reported starting from the amino-terminal (N) end to the carboxyl-terminal (C) end.Periarteriolar lymphoid sheaths: Periarteriolar lymphoid sheaths (or periarterial lymphatic sheaths, or PALS) are a portion of the white pulp of the spleen. They are populated largely by T cells and surround central arteries within the spleen; the PALS T-cells are presented with blood borne antigens via myeloid dendritic cells.Intraepithelial lymphocyte: Intraepithelial lymphocytes (IEL) are lymphocytes found in the epithelial layer of mammalian mucosal linings, such as the gastrointestinal (GI) tract and reproductive tract. However, unlike other T cells, IELs do not need priming.Plasma cellAutoantibody: An autoantibody is an antibody (a type of protein) produced by the immune system that is directed against one or more of the individual's own proteins. Many autoimmune diseases, (notably lupus erythematosus), are caused by such autoantibodies.New Zealand rabbitRadial immunodiffusion: Radial immunodiffusion (RID) or Mancini method, Mancini immunodiffusion or single radial immunodiffusion assay, is an immunodiffusion technique used in immunology to determine the quantity or concentration of an antigen in a sample. Antibody is incorporated into a medium such as an agar gel.Primary and secondary antibodies: Primary and secondary antibodies are two groups of antibodies that are classified based on whether they bind to antigens or proteins directly or target another (primary) antibody that, in turn, is bound to an antigen or protein.ImmunizationChromothripsis: Chromothripsis is the phenomenon by which up to thousands of clustered chromosomal rearrangements occur in a single event in localised and confined genomic regions in one or a few chromosomes, and is known to be involved in both cancer and congenital diseases. It occurs through one massive genomic rearrangement during a single catastrophic event in the cell's history.PMHC cellular microarray: PMHC cellular microarrays are a type of cellular microarray that has been spotted with pMHC complexes peptide-MHC class I or peptide-MHC class II.European Society for Primary Immunodeficiencies: The European Society for Primary Immunodeficiencies (ESID) is a Europe-wide medical association for healthcare professionals and researchers who deal with primary immunodeficiency diseases (PID).Complement deficiencyCryptic self epitopes: In immunology, cryptic self epitopes are a source of autoimmunity.CD32: ; ; rendered via PyMOL.Hyper-IgM syndrome type 1Isolated primary immunoglobulin M deficiencyAvidity: In the context of biochemistry, avidity refers to the accumulated strength of multiple affinities of individual non-covalent binding interactions, such as between a protein receptor and its ligand, and is commonly referred to as functional affinity. As such, avidity is distinct from affinity, which describes the strength of a single interaction.Immunoperoxidase: Immunoperoxidase is a type of immunostain used in molecular biology, medical research, and clinical diagnostics. In particular, immunoperoxidase reactions refer to a sub-class of immunohistochemical or immunocytochemical procedures in which the antibodies are visualized via a peroxidase-catalyzed reaction.Bridget Jones: Bridget Jones is a franchise based on the fictional character with the same name, Bridget Jones. British writer Helen Fielding started her Bridget Jones's Diary column in The Independent in 1995, while chronicling the life of Bridget Jones as a thirtysomething single woman in London as she tries to make sense of life and love with the help of a surrogate "urban family" of friends in the 1990s.Light chain deposition diseaseComplement component 4: Complement component 4 is a protein involved in the complement system.Saliva testing: Saliva testing is a diagnostic technique that involves laboratory analysis of saliva to identify markers of endocrine, immunologic, inflammatory, infectious, and other types of conditions. Saliva is a useful biological fluid for assaying steroid hormones such as cortisol, genetic material like RNA, proteins such as enzymes and antibodies, and a variety of other substances, including natural metabolites, including saliva nitrite, a biomarker for nitric oxide status (see below for Cardiovascular Disease, Nitric Oxide: a salivary biomarker for cardio-protection).