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The action of IgA protease allows the above mentioned bacteria to adhere to mucous membranes. An IgA protease is a highly specific 106kDa enzyme that cleaves amino acid sequences of certain proteins. The natural substrate of IgA proteases is immunoglobulin A, hence its name.
Decreased or absent IgA due to an inherited inability to produce IgA is termed selective IgA deficiency and can produce a clinically significant immunodeficiency. [ 20 ] Anti-IgA antibodies, sometimes present in individuals with low or absent IgA, can result in serious anaphylactic reactions when transfused with blood products that incidentally ...
IgA-specific metalloendopeptidase (EC 3.4.24.13, immunoglobulin A1 proteinase, IgA protease, IgA1-specific proteinase, IgA1 protease, IgA1 proteinase) is an enzyme. [1] [2] [3] This enzyme catalyses the following chemical reaction: Cleavage of Pro-Thr bond in the hinge region of the heavy chain of human immunoglobulin A
IgA protease may refer to: IgA specific serine endopeptidase, an enzyme; IgA-specific metalloendopeptidase, an enzyme This page was last edited on 4 February 2015 ...
Serum protein electrophoresis (SPEP or SPE) is a laboratory test that examines specific proteins in the blood called globulins. [1] The most common indications for a serum protein electrophoresis test are to diagnose or monitor multiple myeloma , a monoclonal gammopathy of uncertain significance (MGUS), or further investigate a discrepancy ...
Selective immunoglobulin A (IgA) deficiency (SIgAD [1]) is a kind of immunodeficiency, a type of hypogammaglobulinemia.People with this deficiency lack immunoglobulin A (IgA), a type of antibody that protects against infections of the mucous membranes lining the mouth, airways, and digestive tract.
Iga Swiatek is the second high-profile tennis player to test positive for a banned substance this year, joining Jannik Sinner. While Sinner, currently the No. 1 ranked man, was fully cleared ...
Meningococci produce an IgA protease, an enzyme that cleaves IgA class antibodies and thus allows the bacteria to evade a subclass of the humoral immune system. [citation needed] A hypervirulent strain was discovered in China. Its impact is yet to be determined. [7]