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T4393
Thrombin from human plasma
lyophilized powder, 1500-3500 NIH units/mg protein (E1%/280, 18.3), suitable for cell culture
Synonim(y):
Factor IIa
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About This Item
Polecane produkty
pochodzenie biologiczne
human plasma
Poziom jakości
sterylność
sterile
Formularz
lyophilized powder
aktywność właściwa
1500-3500 NIH units/mg protein (E1%/280, 18.3)
metody
cell culture | mammalian: suitable
zanieczyszczenia
HIV, hepatitis B and hepatitis C, tested negative
numer dostępu UniProt
temp. przechowywania
−20°C
informacje o genach
human ... F2(2147)
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Opis ogólny
Thrombin is produced from the proteolytic cleavage of inactive prothrombin in the liver. The prothrombin gene is mapped to human chromosome 11p11.2. It comprises of A and B catalytic domain, recognition domain and insertion loops. The active site residues comprise the catalytic tetrad, (histidine 57, aspartate 102, serine 195 and serine 214).
Zastosowanie
Thrombin from human plasma has been used:
- as a medium supplement for the pre-treatment of endothelial cell culture prior to confocal microscopy and enzyme linked immunosorbent assay (ELISA)
- in the gelatinization of mesenchymal stem cells (MSCs) for preparing fibrin–MSC construct
- for screening serine protease inhibitor, OGTI from frog skin secretion
Działania biochem./fizjol.
Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.
The main function of thrombin is the cleavage of fibrinogen to fibrin, to assist stable clot formation. High levels of thrombin elicit neurotoxicity in dopaminergic neurons and contributes to the progression of Parkinson′s disease. A wide range of mutations in the prothrombin gene contributes to its deficiency resulting in coagulation disorders like dysprothrombinemia and hypoprothrombinemia. Altered thrombin levels modulates the coagulation pathway in multiple sclerosis. Patients with coronary artery disease (CAD) show elevated levels of thrombin. Thrombin accumulation in neurofibrillary tangles in the brain may contribute to the aggregation of τ protein and pathophysiology of Alzheimer disease.
Definicja jednostki
Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard
Rekonstytucja
When reconstituted with 1 mL water, vial contains stated activity in 0.15 M sodium chloride and 0.05 M sodium citrate, pH 6.5.
Komentarz do analizy
The NIH assay procedure uses 0.2 ml diluted plasma (1:1 with saline) as a substrate and 0.1ml of thrombin sample (stabilized in a 1% buffered albumin solution) based on a modification of the method of Biggs. Only clotting times in the range of 15-25 seconds are used for determining thrombin concentrations.
Oświadczenie o zrzeczeniu się odpowiedzialności
RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.
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Inhibitor
Numer produktu
Opis
Cennik
Hasło ostrzegawcze
Danger
Zwroty wskazujące rodzaj zagrożenia
Zwroty wskazujące środki ostrożności
Klasyfikacja zagrożeń
Resp. Sens. 1
Kod klasy składowania
10 - Combustible liquids
Klasa zagrożenia wodnego (WGK)
WGK 3
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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Produkty
Czynnik trombinowy IIa jest endolityczną proteazą serynową, która selektywnie rozszczepia wiązania Arg--Gly fibrynogenu, tworząc fibrynę i uwalniając fibrynopeptydy A i B.
Thrombin Factor IIa is an endolytic serine protease that selectively cleaves the Arg--Gly bonds of fibrinogen to form fibrin and release fibrinopeptides A and B.
Nasz zespół naukowców ma doświadczenie we wszystkich obszarach badań, w tym w naukach przyrodniczych, materiałoznawstwie, syntezie chemicznej, chromatografii, analityce i wielu innych dziedzinach.
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