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IgA protease (EC 3.4.21.72, IgA-specific serine endopeptidase, IgA proteinase, IgA-specific proteinase, immunoglobulin A protease, immunoglobulin A proteinase) is an enzyme. [ 1 ] [ 2 ] This enzyme catalyses the following chemical reaction [reaction equation needed]
Neisseria species including Neisseria gonorrhoeae (which causes gonorrhea), [22] Streptococcus pneumoniae, [23] and Haemophilus influenzae type B [24] all release a protease that destroys IgA. Additionally, Blastocystis species have been shown to have several subtypes that generate cysteine and aspartic protease enzymes which degrade human IgA ...
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 ...
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
The receptor-IgA complex passes through the cellular compartments before being secreted on the luminal surface of the epithelial cells, still attached to the receptor. Proteolysis of the receptor occurs and the dimeric IgA molecule, along with the secretory component, are free to diffuse throughout the lumen.
About QRX003 QRX003 is a topical lotion formulated with a proprietary delivery technology that contains a broad-spectrum serine protease inhibitor, whose mechanism of action is intended to perform the function of a specific protein called LEKTI. The absence of LEKTI in Netherton patients leads to excessive skin shedding, resulting in a highly ...
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]
Immunoglobulin A is an antibody that plays a critical role in immune function in the mucous membranes. IgA shows the same typical structure of other antibody classes, with two heavy chains and two light chains, and four distinct domains: one variable region, and three variable regions.