T4393

Trombina from human plasma

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

• Sinónimos: Factor IIa
• Número de CAS: 9002-04-4
• Comisión internacional de enzimas: 3.4.21.5 (BRENDA, IUBMB)
• Número CE: 232-648-7
• Número MDL: MFCD00082072
• Código UNSPSC: 12352202
• NACRES: NA.75

Propiedades

• origen biológico: human plasma
• Nivel de calidad: 200
• esterilidad: sterile
• Formulario: lyophilized powder
• actividad específica: 1500-3500 NIH units/mg protein (E1%/280, 18.3)
• técnicas: cell culture | mammalian: suitable
• impurezas: HIV, hepatitis B and hepatitis C, tested negative
• Nº de acceso UniProt: P00734
• temp. de almacenamiento: −20°C
• Información sobre el gen: human ... F2(2147)

Descripción

Descripción general

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).

Aplicación

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

Acciones bioquímicas o fisiológicas

Serín proteasa que hidroliza selectivamente los enlaces Arg-Gly en el fibrinógeno para formar fibrina y fibrinopéptidos A y 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.

Definición de unidad

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

Reconstitución

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.

Nota de análisis

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.

Cláusula de descargo de responsabilidad

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.

Información de seguridad

• Pictogramas: GHS08
• Palabra de señalización: Danger
• Frases de peligro: H334
• Consejos de prudencia: P261 - P284 - P501
• Clasificaciones de peligro: Resp. Sens. 1
• Código de clase de almacenamiento: 10 - Combustible liquids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable