Transferrin Protein, Human (HEK293)

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Transferrin proteins, iron-binding transporters, bind two Fe(3+) ions and an anion, usually bicarbonate. They transport iron from absorption and heme degradation sites to storage and utilization locations. Serum transferrin may impact cell proliferation. In microbial infection, Neisseria species utilize transferrin as an iron source, capturing and extracting iron for their metabolic needs. Transferrin, Human (HEK293) is the recombinant human-derived Transferrin protein, expressed by HEK293, with C-His 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

Transferrin proteins, iron-binding transporters, bind two Fe(3+) ions and an anion, usually bicarbonate. They transport iron from absorption and heme degradation sites to storage and utilization locations. Serum transferrin may impact cell proliferation. In microbial infection, Neisseria species utilize transferrin as an iron source, capturing and extracting iron for their metabolic needs. Transferrin, Human (HEK293) is the recombinant human-derived Transferrin protein, expressed by HEK293, with C-His labeled tag.

Background

Transferrins, as iron-binding transport proteins, have the capacity to bind two Fe(3+) ions in conjunction with an anion, typically bicarbonate. They play a pivotal role in transporting iron from sites of absorption and heme degradation to locations designated for storage and utilization. Additionally, serum transferrin may exert influence over cell proliferation. In the context of microbial infection, transferrin serves as an iron source for Neisseria species, which adeptly capture the protein and extract iron for their own metabolic needs.

Verified Bioactivity

Immobilized Human Transferrin Protein, premium grade at 2 μg/mL (100 μL/well) can bind Biotinylated Human Transferrin R, Avitag,His Tag with a linear range of 1-40 ng/mL.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag Tag Free
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • Transferrin (V20-P698)
      Accession # P02787
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • Synonyms

    TF; Epididymis Secretory Sperm Binding Protein Li 71p; Transferrin; CDNA FLJ54029, Highly Similar To Serotransferrin; Serotransferrin; Transferrin, Isoform CRA_c; Beta-1 Metal-Binding Globulin; TF Protein; Siderophilin; HEL-S-71p; PRO1557; TFQTL1; PRO2086

  • AA Sequence

    VPDKTVRWCAVSEHEATKCQSFRDHMKSVIPSDGPSVACVKKASYLDCIRAIAANEADAVTLDAGLVYDAYLAPNNLKPVVAEFYGSKEDPQTFYYAVAVVKKDSGFQMNQLRGKKSCHTGLGRSAGWNIPIGLLYCDLPEPRKPLEKAVANFFSGSCAPCADGTDFPQLCQLCPGCGCSTLNQYFGYSGAFKCLKDGAGDVAFVKHSTIFENLANKADRDQYELLCLDNTRKPVDEYKDCHLAQVPSHTVVARSMGGKEDLIWELLNQAQEHFGKDKSKEFQLFSSPHGKDLLFKDSAHGFLKVPPRMDAKMYLGYEYVTAIRNLREGTCPEAPTDECKPVKWCALSHHERLKCDEWSVNSVGKIECVSAETTEDCIAKIMNGEADAMSLDGGFVYIAGKCGLVPVLAENYNKSDNCEDTPEAGYFAIAVVKKSASDLTWDNLKGKKSCHTAVGRTAGWNIPMGLLYNKINHCRFDEFFSEGCAPGSKKDSSLCKLCMGSGLNLCEPNNKEGYYGYTGAFRCLVEKGDVAFVKHQTVPQNTGGKNPDPWAKNLNEKDYELLCLDGTRKPVEEYANCHLARAPNHAVVTRKDKEACVHKILRQQQHLFGSNVTDCSGNFCLFRSETKDLLFRDDTVCLAKLHDRNTYEKYLGEEYVKAVGNLRKCSTSSLLEACTFRRP

  • Predicted Molecular Mass

    75.2 kDa

  • Molecular Weight

    Approximately 68-74 kDa, based on SDS-PAGE under non reducing (N) conditions.

  • Purity

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

Product Properties

Appearance

Lyophilized powder

Formulation

Lyophilized from 0.22 μm filtered solution of PBS, pH 7.4 with 11% trehalose as protectant.

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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