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Merck
모든 사진(1)

문서

T4393

Sigma-Aldrich

Thrombin from human plasma

lyophilized powder, 1500-3500 NIH units/mg protein (E1%/280, 18.3), suitable for cell culture

동의어(들):

Factor IIa

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About This Item

CAS Number:
효소 위원회 번호:
EC Number:
MDL number:
UNSPSC 코드:
12352202
NACRES:
NA.75

생물학적 소스

human plasma

Quality Level

무균

sterile

형태

lyophilized powder

특이 활성도

1500-3500 NIH units/mg protein (E1%/280, 18.3)

기술

cell culture | mammalian: suitable

불순물

HIV, hepatitis B and hepatitis C, tested negative

UniProt 수납 번호

저장 온도

−20°C

유전자 정보

human ... F2(2147)

유사한 제품을 찾으십니까? 방문 제품 비교 안내

일반 설명

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).

애플리케이션

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

생화학적/생리학적 작용

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.
Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.

단위 정의

Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard

재구성

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.

분석 메모

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.

면책조항

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.

픽토그램

Health hazard

신호어

Danger

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Resp. Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


시험 성적서(COA)

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문서

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.

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