catalog number :
MBS564031
products type :
ELISA Kit
products full name :
Human alpha 1-Antitrypsin ELISA Kit
products short name :
Alpha 1-Antitrypsin
products name syn :
Human Alpha 1-Antitrypsin
other names :
alpha-1-antitrypsin; Alpha-1-antitrypsin; alpha-1-antitrypsin; serpin A1; OTTHUMP00000197150; OTTHUMP00000197151; OTTHUMP00000197152; OTTHUMP00000197153; OTTHUMP00000197154; alpha-1-antiproteinase; alpha-1 protease inhibitor; protease inhibitor 1 (anti-elastase), alpha-1-antitrypsin; serine (or cysteine) proteinase inhibitor, clade A, member 1; serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 1; Alpha-1 protease inhibitor; Alpha-1-antiproteinase; Serpin A1
other gene names :
SERPINA1; SERPINA1; PI; A1A; AAT; PI1; A1AT; MGC9222; PRO2275; MGC23330; alpha1AT; AAT; PI
uniprot entry name :
A1AT_HUMAN
storage stability :
Store at 4 degree C.
other info1 :
Samples: Biological fluid of humans. Assay Type: Sandwich
products categories :
ELISA Kit
products description :
Background/Introduction: Alpha 1-Antitrypsin is a 52 kDA serine protease inhibitor (serpin) in blood, which protects tissue from enzym~s from inflammatory cells, especially elastase. In certain acute phase inflammatory reactions, A1AT is elevated I~ order to limit the damage caused by activated neutrophil granulocytes and their enzyme elasta~e. ~isorders of A 1AT include A 1AT deficiency, a hereditary disorder that can lead to severe tissue breakdown during inflammation. This may result in pulmonary emphysema and liver cirrhosis, in severe cases. Genetic variants of A1AT do occur. Principle of the Assay: The principle of the double antibody sandwich ELISA is represented in Figure 1. In this assay the Alpha 1- Antitrypsin present in samples reacts with the anti-Alpha 1-Antitrypsin antibodies which have been adsorbed to the surface of polystyrene microtitre wells. After the removal of unbound proteins by washing, anti-A 1AT antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound A1AT. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3',5,5'-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of A1AT in the sample tested; thus. the absorbance, at 450 nm, is a measure of the concentration of A1AT in the test sample. The quantity of A1AT in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.
ncbi mol weight :
46,737 Da
ncbi pathways :
Complement And Coagulation Cascades Pathway (198880); Complement And Coagulation Cascades Pathway (83073); Complement And Coagulation Cascades Pathway (484); FOXA1 Transcription Factor Network Pathway (137979); Formation Of Platelet Plug Pathway (106029); Hemostasis Pathway (106028); Platelet Activation Pathway (106034); Platelet Degranulation Pathway (106050); Response To Elevated Platelet Cytosolic Ca2+ Pathway (106048)
ncbi summary :
The protein encoded by this gene is secreted and is a serine protease inhibitor whose targets include elastase, plasmin, thrombin, trypsin, chymotrypsin, and plasminogen activator. Defects in this gene can cause emphysema or liver disease. Several transcript variants encoding the same protein have been found for this gene. [provided by RefSeq]
uniprot summary :
SERPINA1: Inhibitor of serine proteases. Its primary target is elastase, but it also has a moderate affinity for plasmin and thrombin. Irreversibly inhibits trypsin, chymotrypsin and plasminogen activator. The aberrant form inhibits insulin-induced NO synthesis in platelets, decreases coagulation time and has proteolytic activity against insulin and plasmin. Defects in SERPINA1 are the cause of alpha-1-antitrypsin deficiency (A1ATD). A disorder whose most common manifestation is emphysema, which becomes evident by the third to fourth decade. A less common manifestation of the deficiency is liver disease, which occurs in children and adults, and may result in cirrhosis and liver failure. Environmental factors, particularly cigarette smoking, greatly increase the risk of emphysema at an earlier age. Belongs to the serpin family. 3 isoforms of the human protein are produced by alternative splicing. Protein type: Inhibitor; Secreted, signal peptide; Secreted. Chromosomal Location of Human Ortholog: 14q32.1. Cellular Component: Golgi apparatus; extracellular space; proteinaceous extracellular matrix; endoplasmic reticulum; extracellular region. Molecular Function: serine-type endopeptidase inhibitor activity; identical protein binding; protein binding; protease binding; glycoprotein binding. Biological Process: platelet activation; response to chromate; platelet degranulation; response to triglyceride; response to cytokine stimulus; response to lead ion; acute-phase response; response to hypoxia; response to methanol; response to lipopolysaccharide; blood coagulation; response to estradiol stimulus. Disease: Alpha-1-antitrypsin Deficiency; Pulmonary Disease, Chronic Obstructive