10223565001
Roche
Histone
from calf thymus
Sinónimos:
histone
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About This Item
Código UNSPSC:
12352204
Productos recomendados
Nivel de calidad
formulario
lyophilized
envase
pkg of 10 mg
fabricante / nombre comercial
Roche
Condiciones de envío
wet ice
temp. de almacenamiento
2-8°C
Categorías relacionadas
Descripción general
Mixture of histones H1, H2A, H2B, H3, and H4, isolated from calf thymus.
Histones are a group of DNA-binding proteins that are characterized by relatively high levels of lysine and arginine. Five different fractions of histones have been isolated and characterized. These are named as H1, H2A, H2B, H3 and H4. The H1 fraction is lysine-rich, while the H2A and H2B are slightly lysine-rich, The H3 and H4 fractions are arginine-rich. The molecular weights of histones are approximately 11 to 21 kDa depending on the fraction.
Histones are a group of DNA-binding proteins that are characterized by relatively high levels of lysine and arginine. Five different fractions of histones have been isolated and characterized. These are named as H1, H2A, H2B, H3 and H4. The H1 fraction is lysine-rich, while the H2A and H2B are slightly lysine-rich, The H3 and H4 fractions are arginine-rich. The molecular weights of histones are approximately 11 to 21 kDa depending on the fraction.
Aplicación
Histone from calf thymus has been used:
- in in vitro kinase assay to check the phosphorylation of histones by protein kinase A.
- to check the in vitro methyltransferase activity of protein argininemethyltransferases from Oryza sativa (OsPRMTs).
- in anti-histone ELISA.
Acciones bioquímicas o fisiológicas
Histones have an important role in the organization and modification of chromatin. The nucleosome is the basic unit of the chromatin. It is made up of two molecules each of histones H2A, H2B, H3 and H4, wrapped with approximately 146bp of DNA. Histone H1 binds to the nucleosomes at the DNA entry and exit points and stabilizes them.
Forma física
Lyophilizate (natural mixture of histones H1, H2A, H2B, H3, and H4).
Nota de preparación
Working concentration: 1 to 5 mg/ml.
Working solution: Recommended solvent is double-distilled water.
Storage conditions (working solution): Aqueous solution is stable at -15 to -25 °C for several months.
Avoid repeated freezing and thawing!
Working solution: Recommended solvent is double-distilled water.
Storage conditions (working solution): Aqueous solution is stable at -15 to -25 °C for several months.
Avoid repeated freezing and thawing!
Otras notas
For life science research only. Not for use in diagnostic procedures.
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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