Activin A Protein, Human (Biotinylated, HEK293, Avi)

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The INHBA protein plays a key role in regulating pituitary function by regulating follicle-stimulating hormone secretion together with activin. Its broad effects span a variety of physiological processes, including hormone secretion, germ cell development, erythrocyte differentiation, insulin secretion, nerve cell survival, embryonic development, and bone growth, depending on unique subunit composition. Activin A Protein, Human (Biotinylated, HEK293, Avi) is the recombinant human-derived Activin A protein, expressed by HEK293, with C-Avi 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

The INHBA protein plays a key role in regulating pituitary function by regulating follicle-stimulating hormone secretion together with activin. Its broad effects span a variety of physiological processes, including hormone secretion, germ cell development, erythrocyte differentiation, insulin secretion, nerve cell survival, embryonic development, and bone growth, depending on unique subunit composition. Activin A Protein, Human (Biotinylated, HEK293, Avi) is the recombinant human-derived Activin A protein, expressed by HEK293, with C-Avi labeled tag.

Background

INHBA protein assumes a pivotal role in the intricate regulation of pituitary gland function, contributing to the opposing dynamics of inhibiting and activating follitropin secretion alongside activins. The expansive influence of inhibins and activins, with INHBA as a central player, spans a spectrum of physiological processes, including hypothalamic and pituitary hormone secretion, gonadal hormone secretion, germ cell development and maturation, erythroid differentiation, insulin secretion, nerve cell survival, embryonic axial development, and bone growth, contingent upon their unique subunit compositions. Notably, inhibins, such as Inhibin A and Inhibin B, emerge as counterparts opposing the functions of activins. Structurally, INHBA exists in a dimeric form, intricately linked by one or more disulfide bonds, representing a homodimer of beta-A subunits. The diversity of activins, encompassing Activin A, Activin B, and Activin AB, further emphasizes their specific subunit compositions, influencing interactions with regulatory proteins like FST and FSTL3. This intricate interplay underscores INHBA's central role in orchestrating a finely tuned regulatory network governing diverse physiological functions.

Verified Bioactivity

Immobilized Human/Cynomolgus Activin RIIB/ACVR2B, His Tag at 1 μg/mL (100 μL/well) on the plate. Dose response curve for Biotinylated Human/Mouse/Rat Activin A, Avi Tag with the EC50 of ≤3.6 ng/mL determined by ELISA.

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

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

  • Bioactivity - ELISA

    Bioactivity - ELISA

    Immobilized Human/Cynomolgus Activin RIIB/ACVR2B, His Tag at 1 μg/mL (100 μL/well) on the plate can bind Biotinylated Human/Mouse/Rat Activin A. The ED50 for this effect is 3.470 ng/mL determined by ELISA.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-Avi
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • Activin A (G311-S426)
      Accession # P08476
    • Avi
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • Conjugation

    Biotin

  • Conjugate Method

    The single lysine residue in Avitag is biotinylated through an enzymatic reaction.

  • Synonyms

    INHBA; Follicle-Stimulating Hormone-Releasing Protein; Inhibin Subunit Beta A; Erythroid Differentiation Factor; Inhibin Beta A Chain; Inhibin Beta A Subunit; Activin Beta-A Chain; FSH-Releasing Protein; Inhibin, Beta A (Activin A, Activin AB Alpha Polype

  • AA Sequence

    GLECDGKVNICCKKQFFVSFKDIGWNDWIIAPSGYHANYCEGECPSHIAGTSGSSLSFHSTVINHYRMRGHSPFANLKSCCVPTKLRPMSMLYYDDGQNIIKKDIQNMIVEECGCS

  • Predicted Molecular Mass

    14.8 kDa

  • Molecular Weight

    Approximately 15-18 kDa under reduced (R) conditions, 23-30 kDa under non reducing (N) conditions, based on SDS-PAGE.

  • Structure/Form

    Homodimer

  • Purity

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

Product Properties

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.22 μm filtered solution of 4 mM HCl, 8% trehalose.

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

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