SRP0158

Histone H3 (2-58) human

recombinant, expressed in E. coli, ≥70% (SDS-PAGE)

• Sinónimos: HIST1H3E, Histone H3.1
• UNSPSC Code: 12352200
• NACRES: NA.32

Propiedades

• biological source: human
• recombinant: expressed in E. coli
• assay: ≥70% (SDS-PAGE)
• form: aqueous solution
• mol wt: 32 kDa
• packaging: pkg of 500 μg
• storage condition: avoid repeated freeze/thaw cycles
• concentration: >0.02 mg/mL
• NCBI accession no.: NM_003532
• UniProt accession no.: P68431
• shipped in: dry ice
• storage temp.: −70°C
• Gene Information: human ... HIST1H3E(8353)

Descripción

General description

The mammalian chromatin is present in nucleosomes, made of histone octamers (H2A,H2B,H3,H4)₂. Mammals contain three main classes of histone H3 variants: the replicative histones (H3.1 and H3.2), the replacement histone (H3.3) and the centromeric histone (Cenp-A).
Human Histone 3 (GenBank Accession No. NM_003532), (amino acid 2-58) with N-terminal GST tag, MW = 32kDa, expressed in an Escherichia coli expression system.

Application

Suitable substrate for histone methyltransferases

Biochem/physiol Actions

Histone proteins are basic building blocks of chromatin. H3.1 (also referred to as HIST1H3E) is mainly expressed in the S phase and is termed as replication-dependent histone. Selective methylation of H3.1 controls replication in heterochromatin area.

Physical form

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20, 20% glycerol and 3 mM DTT.

Preparation Note

Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70°C. Note: Enzyme is very sensitive to freeze/thaw cycles.