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K2638

Sigma-Aldrich

Kallikrein from human plasma

buffered aqueous solution, ≥5 units/mg protein

Synonym(s):

Kininogenase, Kininogenin

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

form

buffered aqueous solution

Quality Level

specific activity

≥5 units/mg protein

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

Gene Information

human ... KLK1(3816)

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General description

Kallikrein-related peptidases belong to the family of 15 highly conserved trypsin- or chymotrypsin-like serine proteases. Plasma kallikrein (PK) is a serine protease derived from plasma prekallikrein, a zymogen found at higher levels in blood circulation. The KLKB1 gene is located on the human chromosome at 4q35.2.

Application

Kallikrein from human plasma has been used:

  • to culture human hepatocellular carcinoma cell line
  • to study its effects on the cleavage of Neisserial heparin binding antigen (NHBA) from Neisseria meningitidis
  • in peptidase inhibition assay

Biochem/physiol Actions

Plasma kallikrein (PK) is involved in the synthesis of bradykinin, maintaining the blood metabolite levels and hypertension. It also participates in the activation of coagulation factor XII, which promotes inflammation and the intrinsic coagulation pathway. PK controls proteolytic cascades in the cardiovascular system like the kallikrein-kinin system, renin-angiotensin system, fibrinolytic system, and the alternative complement pathway. It is involved in the cleavage of glucagon-like peptide-1 (GLP-1) and neuropeptide Y (NPY) which suggests that plasma kallikrein may affect metabolism and diabetes.

Unit Definition

One unit will hydrolyze 1.0 μmole of Nα-benzoyl-L-arginine ethyl ester (BAEE) to Nα-benzoyl-L-arginine and ethanol per min at pH 8.7 at 25°C.

Physical form

Solution in 20 mM Tris-HCl, pH 7.8 with 100 mM NaCl.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Elisa Pantano et al.
PloS one, 14(8), e0203234-e0203234 (2019-08-02)
Neisserial Heparin Binding Antigen (NHBA) is a surface-exposed lipoprotein of Neisseria meningitidis and a component of the Bexsero vaccine. NHBA is characterized by the presence of a highly conserved Arg-rich region involved in binding to heparin and heparan sulphate proteoglycans
Xueqing Xu et al.
Nucleic acids research, 37(22), 7381-7393 (2009-10-13)
A subtelomeric region, 4q35.2, is implicated in facioscapulohumeral muscular dystrophy (FSHD), a dominant disease thought to involve local pathogenic changes in chromatin. FSHD patients have too few copies of a tandem 3.3-kb repeat (D4Z4) at 4q35.2. No phenotype is associated
Ekaterina Zubareva et al.
Pharmaceuticals (Basel, Switzerland), 14(11) (2021-11-28)
The disfunction or deficiency of the C1 esterase inhibitor (C1INH) is associated with hereditary or acquired angioedema (HAE/AAE), a rare life-threatening condition characterized by swelling in the skin, respiratory and gastrointestinal tracts. The current treatment options may carry the risks
D Kolte et al.
British journal of pharmacology, 162(7), 1639-1649 (2010-12-24)
Kallikrein acts on high molecular weight kininogen (HK) to generate HKa (cleaved HK) and bradykinin (BK). BK exerts its effects by binding to B(2) receptors. The activation of B(2) receptors leads to the formation of tissue plasminogen activator, nitric oxide
R Dellalibera-Joviliano et al.
Scandinavian journal of immunology, 71(4), 292-297 (2010-04-14)
In the present study, we evaluated the kinin system components in the plasma of patients with systemic lupus erythematosus exhibiting mucocutaneous lesions. Fifteen women with active cutaneous lupus (P) and 15 normal healthy women (C) were studied. Low molecular (LKg)

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