S100B Protein, Human (HEK293, Fc)

Customer Review

Based on 1 Customer Validation

S100B protein is encoded by the S100B gene and is a member of the S100 family. It regulates cellular processes such as cell cycle progression and differentiation. S100B Protein, Human (HEK293, Fc) is the recombinant human-derived S100B protein, expressed by HEK293 , with N-hFc labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • 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

S100B protein is encoded by the S100B gene and is a member of the S100 family. It regulates cellular processes such as cell cycle progression and differentiation. S100B Protein, Human (HEK293, Fc) is the recombinant human-derived S100B protein, expressed by HEK293 , with N-hFc labeled tag.

Background

The S100B gene encodes a protein belonging to the S100 family, characterized by 2 EF-hand calcium-binding motifs. S100 proteins are found in the cytoplasm and/or nucleus of various cells, playing crucial roles in regulating cellular processes such as cell cycle progression and differentiation. While most S100 genes are clustered on chromosome 1q21, S100B is uniquely located at 21q22.3. This protein is implicated in neurite extension, melanoma cell proliferation, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, as well as inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of S100B are associated with various diseases, including Alzheimer's disease, Down's syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes. Notably, its expression is biased, with significant levels observed in the brain, fat, and select other tissues.

Verified Bioactivity

Measured by its binding ability in a functional ELISA. Immobilized recombinant human S100B at 10 μg/mL (100 μl/well) can bind biotinylated human S100A1 (HY-P74589). The ED50 for this effect is 150-250 ng/mL.

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

    ≥ 95%, as determined by reducing SDS-PAGE.

  • Bioactivity - ELISA

    Bioactivity - ELISA

    Measured by its binding ability in a functional ELISA. Immobilized recombinant human S100B at 10 μg/mL (100 μl/well) can bind biotinylated human S100A1. The ED50 for this effect is 153.8 ng/mL.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag N-hFc
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • hFc
    • S100B (S2-E92)
      Accession # NP_006263.1
    • C-term
  • Protein Length

    Full Length

  • Synonyms

    S100B; S100 Calcium-Binding Protein B; S100 Calcium Binding Protein B; S100 Calcium-Binding Protein; S100beta; S-100 Protein Beta Chain; S-100 Protein Subunit Beta; Protein S100; Protein S100-B; S100-B; S100 Calcium Binding Protein, Beta (Neural); S100; S

  • AA Sequence

    SELEKAMVALIDVFHQYSGREGDKHKLKKSELKELINNELSHFLEEIKEQEVVDKVMETLDNDGDGECDFQEFMAFVAMVTTACHEFFEHE

  • Molecular Weight

    Approximately 40 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
2.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 8% trehalose.
Please refer to the lot-specific COA for specific buffer information.

Endotoxin Level

<1 EU/μg, determined by LAL method.

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

Get Quote In-stock

Other size
Get Quote
Please select quantity
Amount: USD 0.00