H5505
Histone from calf thymus
Type III-S
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A propos de cet article
Numéro CAS:
UNSPSC Code:
41106305
NACRES:
NA.51
Beilstein/REAXYS Number:
1895465
MDL number:
Form:
powder
Biological source:
bovine (calf) thymus
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Laissez-nous vous aiderbiological source
bovine (calf) thymus
type
Type III-S
form
powder
concentration
≥60% protein (biuret)
technique(s)
activity assay: suitable
solubility
H2O: soluble 10 mg/mL, clear to hazy, colorless to light yellow
storage temp.
2-8°C
Quality Level
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Application
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
Biochem/physiol Actions
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.
Features and Benefits
Do not confuse Sigma "Type" designations with the "Fraction" designations used by Luck and co-workers.
Preparation Note
Lysine-rich fraction as isolated and described by de Nooij, E. and Westenbrink, H.G., Biochim. Biophys. Acta, 62, 608 (1962).
Other Notes
Characterized as mainly subgroup f1 by SDS-PAGE
Classe de stockage
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Scott T
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The real-time changes in viscoelasticity of adsorbed poly(L-lysine) (PLL) and adsorbed histone (lysine rich fraction) due to cross-linking by glutaraldehyde and corresponding release of associated water were investigated using a quartz crystal microbalance with dissipation monitoring (QCM-D) and attenuated total
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