• Species Reactivity

  Rat

• Specificity

  Detects rat TfR (Transferrin R) in flow cytometry.

• Source

  Monoclonal Mouse IgG    _2A Clone # OX26

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  PHA activated rat lymphocytes

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 647

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.5 µg/10    ⁶ cells

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: TfR (Transferrin R)

The Transferrin Receptor (TfR or TfR-1, designated CD71) is a type 2 transmembrane glycoprotein expressed on erythroid progenitors, muscle cells and proliferating cells as a 188 kDa disulfide-linked homodimer of 95 kDa monomers. As the major mediator of cellular iron uptake, it binds and internalizes diferric transferrin, allowing iron release at the low pH of the endosome. Most soluble TfR (sTfR) arises from trypsin proteolysis at aa 100, producing the circulating form of TfR. sTfR concentration in plasma or serum is proportional to total TfR and can be increased by iron deficiency. Erythroid progenitors, which use iron for hemoglobin synthesis, normally account for the bulk of total body TfR production. Since rapidly growing cells require iron to replicate DNA, cancer cells can express up to 5-fold more TfR than quiescent cells in the surrounding tissue. Antibody targeting of TfR can inhibit tumor cell proliferation and induce apoptosis. The hereditary hemochromatosis protein HFE competes with diferric transferrin for binding to TfR, and targets TfR for degradation rather than recycling. TfR has been reported to have ferritin-independent functions in T cell development, immunological synapse formation and galectin-3-mediated cell death, and to be a cell entry receptor for New World hemorrhagic fever arenaviruses.

• Long Name:

  Transferrin Receptor

• Entrez Gene IDs:

  7037 (Human); 22042 (Mouse); 64678 (Rat)

• Alternate Names:

  CD71 antigen; CD71; CD71TRFR; p90; T9; TfR (Transferrin R); TfR (TransferrinR); TfR; TFR1; TFRC; TR; transferrin receptor (p90, CD71); transferrin receptor protein 1; TRFR