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There was a study conducted to see the reaction of a human globulin with an erythrocyte surface which showed that a human globulin fixes to the erythrocytes in a non-related immune response fashion. Also, the globulin that was fixed on the erythrocyte has the trait to exchange with a globulin in a certain medium. [3]
Gamma globulin infusions are also used to treat some immunological diseases, such as idiopathic thrombocytopenia purpura (ITP), a disease in which the platelets are being attacked by antibodies, leading to seriously low platelet counts. It appears that gamma globulin causes the spleen to ignore the antibody-tagged platelets, thus allowing them ...
Other globular proteins are the alpha, beta and gamma (IgA, IgD, IgE, IgG and IgM) globulin. See protein electrophoresis for more information on the different globulins. Nearly all enzymes with major metabolic functions are globular in shape, as well as many signal transduction proteins.
Schematic representation of a protein electrophoresis gel. Alpha globulins are a group of globular proteins in plasma [1] that are highly mobile in alkaline or electrically charged solutions.
Coombs reagent (also known as Coombs antiglobulin or antihuman globulin) is used in both the direct Coombs test and the indirect Coombs test. Coombs reagent is antihuman globulin . It is made by injecting human globulin into animals, which produce polyclonal antibodies specific for human immunoglobulins and human complement system factors.
IgA exists in two isotypes, IgA1 and IgA2.They are both heavily glycosylated proteins. [9] While IgA1 predominates in serum (~80%), IgA2 percentages are higher in secretions than in serum (~35% in secretions); [10] the ratio of IgA1 and IgA2 secreting cells varies in the different lymphoid tissues of the human body: [11]
Globin superfamily members share a common three-dimensional fold. [3] This 'globin fold' typically consists of eight alpha helices, although some proteins have additional helix extensions at their termini. [4]
A macroglobulin is a plasma globulin of high molecular weight. [1] Elevated levels of macroglobulins (macroglobulinemia) may cause manifestations of excess blood viscosity (as is the case for IgM antibodies in Waldenström macroglobulinemia) and/or precipitate within blood vessels when temperature drops (as in cryoglobulinaemia).