Histone H3 Protein, Human (His)

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Based on 1 Customer Validation

Histone H3 proteins are critical in nucleosomes, which compact DNA into chromatin and regulate DNA accessibility. Histone H3 Protein, Human (His) is the recombinant human-derived Histone H3 protein, expressed by E. coli , with N-His labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: E. coli
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

Histone H3 proteins are critical in nucleosomes, which compact DNA into chromatin and regulate DNA accessibility. Histone H3 Protein, Human (His) is the recombinant human-derived Histone H3 protein, expressed by E. coli , with N-His labeled tag.

Background

Histone H3, a fundamental component of the nucleosome, serves as a linchpin in the intricate process of wrapping and compacting DNA into chromatin, which in turn restricts DNA accessibility to cellular machineries requiring DNA as a template. This histone, alongside its counterparts, assumes a pivotal role in pivotal cellular functions, including transcription regulation, DNA repair, DNA replication, and the maintenance of chromosomal stability. The regulation of DNA accessibility involves a sophisticated interplay of post-translational modifications collectively referred to as the histone code, coupled with the dynamic remodeling of nucleosomes. The nucleosome itself comprises a histone octamer, composed of two molecules each of H2A, H2B, H3, and H4, assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. This octamer efficiently wraps approximately 147 base pairs of DNA, exemplifying its indispensable role in organizing chromatin structure and facilitating crucial genomic processes. Additionally, Histone H3 interacts with various cellular components such as TONSL, CHAF1A, CHAF1B, MCM2, and DNAJC9, further contributing to its multifaceted functions.

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

    ≥ 90%, as determined by reducing SDS-PAGE.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag N-His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • His
    • Histone H3 (M1-A136)
      Accession # P68431
    • C-term
  • Protein Length

    Full Length

  • Synonyms

    H3C1; Histone H3/C; Prev. HIST1H3A; HIST1H3J; Prev. H3FA; HIST1H3I; H3/A; HIST1H3H; Histone Cluster 1 H3 Family Member A; HIST1H3G; H3 Histone Family, Member A; HIST1H3F; Histone Cluster 1, H3a; HIST1H3E; Histone 1, H3a; HIST1H3D; Histone H3.1; HIST1H3B;

  • AA Sequence

    ARTKQTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEACEAYLVGLFEDTNLCAIHAKRVTIMPKDIQLARRIRGERA

  • Molecular Weight

    Approximately 18 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
2.Lyophilized from a 0.22 μm filtered solution of 50 mM Tris-HCl, 300 mM NaCl, 200 mM arginine, pH 8.0.
Please refer to the lot-specific COA for specific buffer information.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.

Endotoxin Level

/

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) Volume (to add to vial)
=
Mass (in vial) Mass (in vial)
÷
Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

Concentration (start) Concentration (start)
×
Volume (start) Volume (start)
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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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