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3.4.21.B1: hyaluronan-binding serine protease

This is an abbreviated version!
For detailed information about hyaluronan-binding serine protease, go to the full flat file.

Word Map on EC 3.4.21.B1

Reaction

endopeptidase activity. Cleaves C-terminal site of Lys and Arg =

Synonyms

factor seven activating protease, factor VII activating protease, factor VII-activating protease, FASP, FSAP, gelatinolytic serine proteinase, HABP, HABP2, hyaluronan binding protein 2, hyaluronan-binding protease, hyaluronic acid-binding protease, PHBP, PHBSP, plasma hyaluronan-binding protein, S01.033

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.21 Serine endopeptidases
                3.4.21.B1 hyaluronan-binding serine protease

Activating Compound

Activating Compound on EC 3.4.21.B1 - hyaluronan-binding serine protease

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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
chondroitin sulfate
-
increases kininogen cleavage at above 1 mg/ml
Dextran sulfate
-
heparan sulfate
heparin
histone
-
histones H1, H2A, H2B, H3, and H4 promote pro-plasma hyaluronan-binding protein autoactivation in vivo. Histones do not affect enzymatic activity of the active form of plasma hyaluronan-binding protein
hyaluronic acid
-
activates single-chain inactivate zymogen to the two-chain active enzyme
IL-6
-
stimulates FSAP mRNA expression 5.5fold at 24 h
-
IL-8
-
can stimulate the expression of HABP mRNA in lung microvascular endothelial cells and in bronchial epithelial cells
-
IL-alpha
-
stimulates FSAP mRNA expression 4fold at 24 h
-
LPS
-
stimulates FSAP mRNA expression 6fold after 1 h, reaching a plateau at 2 h (7fold stimulation) and gradually decreases until returning to the base level at 24 h
-
phosphatidylethanolamine
-
enhances autofragmentation and serine protease activity at 0.001 mg/ml and 0.00001 mg/ml
poly-L-lysine
polyethylenimine
FSAP is exclusively activated by the positively charged surfaces polyethylenimine and poly-L-lysine
-
urokinase
-
potential physiological activator
-
additional information
-