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Merck

H5505

Sigma-Aldrich

Histone from calf thymus

Type III-S

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About This Item

Número de CAS:
Beilstein:
1895465
Número MDL:
Código UNSPSC:
41106305
NACRES:
NA.51

origen biológico

bovine (calf) thymus

Nivel de calidad

tpo

Type III-S

formulario

powder

concentración

≥60% protein (biuret)

técnicas

activity assay: suitable

solubilidad

H2O: soluble 10 mg/mL, clear to hazy, colorless to light yellow

temp. de almacenamiento

2-8°C

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Aplicación

Histone is suitable for use:
  • as a positive control in the in vitro kinase assay to examine the ability of Cdc2-cyclin B1 to phosphorylate GST-CD-4 protein
  • in Cdk5 activity assay
  • in histone H1 kinase assay
  • as a Poly(ADP-ribose) (PAR) acceptor in the assessment of in vitro PAR polymerase activity
  • as an acceptor of 32P from [γ-32P]ATP in order to measure protein kinase activity of lysate from small and large luteal cells

Acciones bioquímicas o fisiológicas

Histones are a group of proteins characterized by high levels of lysine and arginine that form reversible complexes with DNA. Based on the fractions, the molar mass of histones varies between 11-21kDa. Five different fractions have been isolated and characterized. They include H1 (lysine rich), H2a and H2b that are slightly lysine rich, H3 and H4 that are arginine rich. H1 acts as a link between "beads" (nu bodies) on the chromatin chain.

Características y beneficios

Do not confuse Sigma "Type" designations with the "Fraction" designations used by Luck and co-workers.

Otras notas

Characterized as mainly subgroup f1 by SDS-PAGE

Nota de preparación

Lysine-rich fraction as isolated and described by de Nooij, E. and Westenbrink, H.G., Biochim. Biophys. Acta, 62, 608 (1962).

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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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