Any feedback?
Please rate this page
(all_enzymes.php)
(0/150)

BRENDA support

3.4.21.76: Myeloblastin

This is an abbreviated version!
For detailed information about Myeloblastin, go to the full flat file.

Word Map on EC 3.4.21.76

Reaction

Hydrolysis of proteins, including elastin, by preferential cleavage: -Ala-/- > -Val-/- =

Synonyms

AGP7, C-ANCA antigen, hPR-3, human leukocyte proteinase 3, human PR3, human proteinase 3, Leukocyte proteinase 3, Leukocyte proteinase 4, membrane proteinase 3, membrane-associated proteinase 3, mP3, mPR3, myeloblastin, neutrophil protease PR3, neutrophil proteinase 3, neutrophil serine protease, neutrophilic serine protease proteinase 3, P29, p29b, PMNL proteinase, Pr 3, PR-3, PR3, protease 3, proteinase 3, Proteinase PR-3, Proteinase-3, proteinase3, PRTN3, SAP3, secreted aspartic proteinase 3, surface proteinase 3, Wegener autoantigen, Wegener's autoantigen, Wegener's granulomatosis autoantigen, Xenopus PR3, xPR-3

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.21 Serine endopeptidases
                3.4.21.76 Myeloblastin

Expression

Expression on EC 3.4.21.76 - Myeloblastin

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EXPRESSION
ORGANISM
UNIPROT
LITERATURE
activation with the calcium ionophore A23187 to optimize membrane-bound Pr3 exposure at the cell surface, whereby Pr3 activity increases by 5-20fold. Resting neutrophils have a genetically determined distribution of the protease that results in a bimodal membrane-bound Pr3 expression
-
expression of membrane PR3 and CD177 on the same subset of neutrophils
-
histone demethylase JMJD3 (EC 1.14.11.68) regulates the expression of neutrophil membrane proteinase 3 (mPR3) in lipopolysaccharide-stimulated neutrophils during the early inflammatory response in sepsis
in patients with anti-neutrophil cytoplasmic antibodies-associated systemic vasculitis, increased mRNA levels of both PR3 and CD177 are found, which do not correlate with the proportion of double-positive cells
-
increased percentages of mPR3-expressing neutrophils in patients with ANCA-associated systemic vasculitis (median 67%, range 16-100%) and patients with systemic lupus erythematosus (median 80%, range 25-100%), but not in patients with rheumatoid arthritis (median 61%, range 0-100%). Correlation of CD177 expression with PR3 expression on primed neutrophils. After priming with tumor necrosis factor alpha, neutrophils remain negative for CD177 while PR3 expression is induced. Expression of PR3 on the neutrophil surface can be independent of CD177 expression. Among the patients with PR3 ANCA-associated vasculitis, patients treated with cyclophosphamide or prednisolone have higher percentages of CD177-expressing neutrophils than do patients who have not received these treatments
-
neutrophil membrane expression of PR3 increases during both activation and apoptosis. Membrane expression of PR3 is increased in patients with granulomatosis with polyangiitis
PR3 plasma concentrations are increased in patients with liver steatosis. PR3 concentration is upregulated in patients with type 2 diabetes when compared to lean and obese controls
size of the membrane-bound PR3 high expressing neutrophils ranges from 0% to 100% of the total number of neutrophils in a healthy population and remains strikingly constant within one individual over time. Percentage of membrane-bound PR3 expressing neutrophils is genetically determined. Elevated expression levels of membrane-bound PR3 in Wegener's granulomatosis, PR3-anti-neutrophil cytoplasmic autoantibodies associated vasculitis and other chronic inflammatory diseases. TNF-alpha may translocate PR3 to the plasma membrane and raise the expression level up to 2- to 3folds of that on resting neutrophils. IL-8, TGF-beta and GM-CSF upregulate membrane PR3 expression on neutrophils. CD177 is the receptor of membrane-bound PR3 and mediates PR3 expression on the neutrophil membrane
-