Rabbit Recombinant Monoclonal Transferrin Receptor antibody. Carrier free. Suitable for WB, Flow Cyt (Intra) and reacts with Human samples.
Images
![Flow Cytometry (Intracellular) - Anti-Transferrin Receptor antibody [EPR4012] - Low endotoxin, Azide free (AB228995), expandable thumbnail](https://content.abcam.com/products/images/transferrin-receptor-antibody-epr4012-low-endotoxin-azide-free-ab228995--flow-cytometry-intracellular-img62887.jpg/_jcr_content/renditions/webp-475.webp "Flow Cytometry (Intracellular) - Anti-Transferrin Receptor antibody [EPR4012] - Low endotoxin, Azide free (AB228995)")
Key facts
- Isotype
- IgG
- Host species
- Rabbit
- Storage buffer
pH: 7.2 - 7.4
Constituents: PBS- Form
- Liquid
- Clonality
- Monoclonal
Immunogen
- The exact immunogen used to generate this antibody is proprietary information.
Reactivity data
Select an application| ICC/IF | WB | Flow Cyt (Intra) | |
|---|---|---|---|
| Human | Not recommended | Expected | Tested |
| Mouse | Not recommended | Predicted | Predicted |
ICC/IF
Not recommendedNot recommended
| Species | Dilution info | Notes |
|---|---|---|
Species Human, Mouse | Dilution info - | Notes - |
WB
ExpectedExpected
| Species | Dilution info | Notes |
|---|---|---|
Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
PredictedPredicted
| Species | Dilution info | Notes |
|---|---|---|
Species Mouse | Dilution info - | Notes - |
Flow Cyt (Intra)
TestedTested
| Species | Dilution info | Notes |
|---|---|---|
Species Human | Dilution info - | Notes ab199376 - Rabbit monoclonal IgG (Low endotoxin, Azide free), is suitable for use as an isotype control with this antibody. |
PredictedPredicted
| Species | Dilution info | Notes |
|---|---|---|
Species Mouse | Dilution info - | Notes - |
Associated Products
Select an associated product type
15 products for Alternative Product
5 products for Alternative Version
Target data
Function
Cellular uptake of iron occurs via receptor-mediated endocytosis of ligand-occupied transferrin receptor into specialized endosomes (PubMed:26214738). Endosomal acidification leads to iron release. The apotransferrin-receptor complex is then recycled to the cell surface with a return to neutral pH and the concomitant loss of affinity of apotransferrin for its receptor. Transferrin receptor is necessary for development of erythrocytes and the nervous system (By similarity). A second ligand, the hereditary hemochromatosis protein HFE, competes for binding with transferrin for an overlapping C-terminal binding site. Positively regulates T and B cell proliferation through iron uptake (PubMed:26642240). Acts as a lipid sensor that regulates mitochondrial fusion by regulating activation of the JNK pathway (PubMed:26214738). When dietary levels of stearate (C18:0) are low, promotes activation of the JNK pathway, resulting in HUWE1-mediated ubiquitination and subsequent degradation of the mitofusin MFN2 and inhibition of mitochondrial fusion (PubMed:26214738). When dietary levels of stearate (C18:0) are high, TFRC stearoylation inhibits activation of the JNK pathway and thus degradation of the mitofusin MFN2 (PubMed:26214738). Mediates uptake of NICOL1 into fibroblasts where it may regulate extracellular matrix production (By similarity). (Microbial infection) Acts as a receptor for new-world arenaviruses: Guanarito, Junin and Machupo virus.
Alternative names
CD71, Transferrin receptor protein 1, TR, TfR, TfR1, Trfr, T9, p90, TFRC
Recommended products
Rabbit Recombinant Monoclonal Transferrin Receptor antibody. Carrier free. Suitable for WB, Flow Cyt (Intra) and reacts with Human samples.
Key facts
- Isotype
- IgG
- Host species
- Rabbit
- Storage buffer
pH: 7.2 - 7.4
Constituents: PBS- Form
- Liquid
- Clonality
- Monoclonal
- Immunogen
- The exact immunogen used to generate this antibody is proprietary information.
- Carrier free
- Yes
- Clone number
- EPR4012
- Purification technique
- Affinity purification Protein A
- Concentration
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- +4°C
- Storage information
- Do Not Freeze
Notes
ab228995 is the carrier-free version of Anti-Transferrin Receptor antibody [EPR4012] ab108985.
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.
This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.
Our Low endotoxin, azide-free formats have low endotoxin level (1 EU/mg, determined by the TAL assay) and are free from azide, to achieve consistent experimental results in functional assays.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
The transferrin receptor commonly referred to as TfR or CD71 is an integral membrane protein that facilitates the uptake of transferrin-bound iron into cells. This receptor has a molecular weight of around 95 kDa and often exists as a homodimer on the cell surface. It is widely expressed in many tissues especially in erythroid precursors and rapidly dividing cells. Alternate names for this receptor include TfR1 and TfR2 though they have distinct roles and distributions. Other transmembrane proteins like OX26 and MEM have been studied in relation to the transferrin receptor due to their involvement in drug delivery.
- Biological function summary
TfR plays a critical role in iron homeostasis by mediating the internalization of transferrin and release of iron in the endosomes. It operates as part of the transferrin-transferrin receptor complex facilitating iron assimilation necessary for DNA synthesis and cell growth. Iron release involves acidifying endosomes allowing transferrin to bind with specific cellular receptors including alternate forms like beta 2 transferrin. The process subsequently contributes to erythropoiesis and various metabolic processes by regulating essential cellular iron levels.
- Pathways
The transferrin receptor is central to iron metabolism and the receptor-mediated endocytosis pathway. It tightly interacts with transferrin and intracellular pathways process the iron released from transferrin within endosomes. The receptor's role in this pathway involves a dynamic with other proteins such as HFE and hepcidin. These interactions help control systemic iron levels linking closely to the maintenance of erythroid cell health and proliferation.
- Associated diseases and disorders
Disruptions in transferrin receptor function correlate with anemia and neurodegenerative disorders. In anemia related to iron deficiency impaired TfR activity reduces iron uptake culminating in insufficient erythropoiesis. Altered receptor expression or function also connects to neurological diseases like Alzheimer's where iron dysregulation is a concern. Here the transferrin receptor interacts with proteins like Amyloid precursor protein contributing to disease pathology through improper metal homeostasis.
Product promise
Tested
We have tested this species and application combination and it works. It is covered by our product promise.
Expected
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
Predicted
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
Not recommended
We do not recommend this combination. It is not covered by our product promise.
We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.
In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
1 product image
![Flow Cytometry (Intracellular) - Anti-Transferrin Receptor antibody [EPR4012] - Low endotoxin, Azide free (ab228995), expandable thumbnail](https://content.abcam.com/products/images/transferrin-receptor-antibody-epr4012-low-endotoxin-azide-free-ab228995--flow-cytometry-intracellular-img62887.jpg "Flow Cytometry (Intracellular) - Anti-Transferrin Receptor antibody [EPR4012] - Low endotoxin, Azide free (ab228995)")
Flow Cytometry (Intracellular) - Anti-Transferrin Receptor antibody [EPR4012] - Low endotoxin, Azide free (ab228995)
This Intracellular Intracellular Flow Cyt data was generated using the same anti-Transferrin Receptor antibody clone, EPR4012, in a different buffer formulation (cat
Anti-Transferrin Receptor antibody [EPR4012] ab108985).
Overlay histogram showing Jurkat cells stained with Anti-Transferrin Receptor antibody [EPR4012] ab108985 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (Anti-Transferrin Receptor antibody [EPR4012] ab108985, 1/100) for 30 min at 22�C. The secondary antibody used was DyLight� 488 goat anti-rabbit IgG (H+L) (Goat Anti-Rabbit IgG H&L (DyLight® 488) preadsorbed ab96899) at 1/500 dilution for 30 min at 22�C. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1�g/1x106cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in Jurkat cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
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