Mouse anti-Human Proteinase 3 Monoclonal Antibody | anti-PRTN3 antibody

Proteinase 3, Human, mAb PR3-G2

Cat. Num. AAA584183

• Reactivity: Human
• Applications: Flow Cytometry, Functional Assay, Western Blot
• Synonyms: Proteinase 3; Monoclonal Antibody; Human; mAb PR3-G2; anti-PRTN3 antibody

• Host: Mouse
• Reactivity: Human
• Clonality: Monoclonal
• Isotype: Mouse IgG1
• Form/Format: 1 ml (100 ug/ml) 0.2 um filtered antibody solution in PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.; For unit size 0.5 mg or larger: PBS only (concentration< 0.5mg/ml)
• Sequence Length: 254

• Applicable Applications for anti-PRTN3 antibody: F, Flow Cytometry (FC/FACS), Immunoassay (IA), Western Blot (WB)
• Application Notes: Application Use: For immunohistology, flow cytometry and Western blotting dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.
• Preparation and Storage: Product should be stored at 4 degree C. Under recommended storage conditions, product is stable for one year.

Related Product Information for anti-PRTN3 antibody

Product Description: Monoclonal antibody PR3G-2 reacts with human proteinase 3 (PR3), a 30 kDa protein. PR3 is a major antigen recognized by autoantibodies directed against cytoplasmic proteins of neutrophilic granulocytes and monocytes (called anti-neutrophil cytoplasmic autoantibodies (ANCA)). ANCA are able to activate primed neutrophils to produce oxygen radicals and release lytic enzymes, including PR3. Proteinase 3 (PR3) was identified as the target antigen of ANCA in Wegener's granulomatosis (WG). ANCA directed against PR3 (PR3-ANCA) can interfere with the binding of PR3 to its physiological inhibitor alpha1-antitrypsin (alpha1-AT) and with the proteolytic activity of PR3. At the site of inflammation, PR3 can cleave the PR3-ANCA complex between these inhibiting ANCA and PR3 itself, leaving active PR3. Autoantibodies to PR3 are potent activators of the 5-lipoxygenase pathway in primed human neutrophils. Extracellular free arachidonic acid, as present at an inflammatory focus, synergizes with such autoantibodies to evoke full-blown lipid mediator generation, granule secretion and respiratory burst. Proteinase 3 (PR3) is a neutral serine proteinase, which is localized in the azurophilic granules of neutrophils and in granules of monocytes and can be detected in the membrane of secretory vesicles. PR3 degrades a number of extracellular matrix proteins such as elastin and inactivates human C1 inhibitor. Membrane-associated PR3 is also able to activate caspase-3 without triggering apoptosis of neutrophils, which is possibly a neutrophil survival mechanism. In addition, PR3 is involved in myeloid differentiation and is, therefore, also called myeloblastin. The monoclonal antibody PR3-G2 was produced by immunization of mice with a crude granule extract.

References

1. Geld van der, Y et al; Characterization of monoclonal antibodies to proteinase 3 (PR3) as candidate tools for epitope mapping of human anti-PR3 autoantibodies. Clin Exp Immunol 1999, 118: 487 2. Pederzoli, M et al: Proeinase-3 induces procaspase-3 activation in the absence of apoptosis: potential role of this compartmentalized activation of membrane-associated procaspase-3 in neutrophils. J Immunol 2005, 174: 6381

NCBI and Uniprot Product Information

• NCBI GI #: 1335280
• UniProt Accession #: P24158; P15637; P18078; Q4VB08; Q4VB09; Q6LBM7; Q6LBN2; Q9UD25; Q9UQD8
• Molecular Weight: 27,807 Da
• NCBI Official Full Name: proteinase 3
• UniProt Protein Name: Myeloblastin
• Protein Family: Myeloblastin
• UniProt Gene Name: PRTN3
• UniProt Synonym Gene Names: MBN; PR-3; PR3; NP-4
• UniProt Entry Name: PRTN3_HUMAN

Uniprot Description

PRTN3: Polymorphonuclear leukocyte serine protease that degrades elastin, fibronectin, laminin, vitronectin, and collagen types I, III, and IV (in vitro) and causes emphysema when administered by tracheal insufflation to hamsters. Belongs to the peptidase S1 family. Elastase subfamily.

Protein type: Cell cycle regulation; Protease; EC 3.4.21.76

Chromosomal Location of Human Ortholog: 19p13.3

Cellular Component: extracellular matrix; extracellular space; plasma membrane; cytosol

Molecular Function: enzyme binding; serine-type peptidase activity; serine-type endopeptidase activity

Biological Process: collagen catabolic process; negative regulation of phagocytosis; positive regulation of cell proliferation; proteolysis; blood coagulation