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Merck
CN

K1632

Kininogen high molecular weight, Two Chain from human plasma

lyophilized powder

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.61
MDL number:
Form:
lyophilized powder
Biological source:
human plasma
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biological source

human plasma

Quality Level

form

lyophilized powder

solubility

H2O: soluble 0.1 mg protein/mL

UniProt accession no.

storage temp.

−20°C

Gene Information

General description

HK (KNG1) gene is mapped to human chromosome 3q27.3. It is a glycoprotein.
High-molecular-weight kininogen (HK) is the substrate and cofactor of the plasma kallikrein-kinin system (KKS). It is present at a concentration of 660 nM on the plasma and binds to platelet GPI-V-IX complex.

Biochem/physiol Actions

High molecular weight kininogen, two chain, is a participant in contact phase activation of the intrinsic blood coagulation cascade that forms a substrate on which blood factor XI is held in proximity to factor XII allowing reciprocal activation of the two factors. It is also involved in the activation of prekallikrein. High molecular weight kininogen binds to proteoglycans on the surface of platelets, endothelial cells, and other cell types. Domain 5 of high molecular weight kininogen inhibits platelet aggregation and angiogenesis.
High-molecular-weight kininogen (HK) inhibits binding of thrombin to platelets.

Packaging

Package size based on protein content

Physical form

Lyophilized from 4 mM sodium acetate, pH 5.3, 0.15 M NaCl

Preparation Note

Prepared by kallikrein digestion of human kininogen. Purified to remove kallikrein and kinin.


Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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[Omeprazole long-term therapy: how great is the risk of developing a carcinoid tumor?].
H Koop
Zeitschrift fur Gastroenterologie, 26(12), 769-771 (1988-12-01)
Henri Weidmann et al.
Biochimica et biophysica acta. Molecular cell research, 1864(11 Pt B), 2118-2127 (2017-07-27)
The contact system is a potent procoagulant and proinflammatory plasma protease cascade that is initiated by binding ("contact")-induced, auto-activation of factor XII zymogen. Formed active serine protease FXIIa then cleaves plasma prekallikrein to kallikrein that in turn liberates the mediator
Thomas Koudstaal et al.
American journal of respiratory cell and molecular biology, 63(5), 665-680 (2020-08-07)
Chronic perivascular inflammation is a prominent feature in the lungs of idiopathic pulmonary arterial hypertension. Although the proportions of conventional dendritic cells (cDCs) and plasmacytoid DCs are increased in idiopathic pulmonary arterial hypertension lungs, it remains unknown whether activated cDCs



Global Trade Item Number

SKUGTIN
K1632-.1MG04061833421086