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Histone H3 Protein, Xenopus laevis (98a.a)

Cat. No.: HY-P72334
Handling Instructions

Histone H3 Protein constitutes a core element in the nucleosome, an octamer comprising H2A, H2B, H3, and H4. The assembly forms a histone octamer with one H3-H4 heterotetramer and two H2A-H2B heterodimers, serving as a molecular spool that wraps around 147 base pairs of DNA. This compact organization contributes to chromatin structure, and Histone H3, as part of this assembly, plays a crucial role in chromatin structure and gene regulation. Histone H3 Protein, Xenopus laevis (98a.a) is the recombinant Xenopus laevis-derived Histone H3 protein, expressed by E. coli , with tag free. The total length of Histone H3 Protein, Xenopus laevis (98a.a) is 98 a.a., with molecular weight of ~11.5 kDa.

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Description

Histone H3 Protein constitutes a core element in the nucleosome, an octamer comprising H2A, H2B, H3, and H4. The assembly forms a histone octamer with one H3-H4 heterotetramer and two H2A-H2B heterodimers, serving as a molecular spool that wraps around 147 base pairs of DNA. This compact organization contributes to chromatin structure, and Histone H3, as part of this assembly, plays a crucial role in chromatin structure and gene regulation. Histone H3 Protein, Xenopus laevis (98a.a) is the recombinant Xenopus laevis-derived Histone H3 protein, expressed by E. coli , with tag free. The total length of Histone H3 Protein, Xenopus laevis (98a.a) is 98 a.a., with molecular weight of ~11.5 kDa.

Background

The Histone H3 Protein is a fundamental component of the nucleosome, which comprises a histone octamer containing two molecules each of H2A, H2B, H3, and H4. This assembly consists of one H3-H4 heterotetramer and two H2A-H2B heterodimers, collectively forming the octameric core. Functioning as a molecular spool, the histone octamer wraps approximately 147 base pairs of DNA around itself, contributing to the compact organization of chromatin. Histone H3, as part of this assembly, belongs to the histone H3 family, playing a pivotal role in chromatin structure and gene regulation.

Species

Xenopus laevis

Source

E. coli

Tag

Tag Free

Accession

Q92133 (P39-A136)

Gene ID

399088  [NCBI]

Molecular Construction
N-term
Histone H3 (P39-A136)
Accession # Q92133
C-term
Synonyms
H3c8.S; H3I; hist1h3g
AA Sequence

PHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEASEAYLVALFEDTNLCAIHAKRVTIMPKDIQLARRIRGERA

Molecular Weight

Approximately 11.5 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation

Histone H3 Protein, Xenopus laevis (98a.a) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

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

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The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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The specific activity calculator equation

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

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

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Histone H3 Protein, Xenopus laevis (98a.a)
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