Human Transferrin Receptor/TFRC HEK293 Overexpression Lysate

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Human Transferrin Receptor/TFRC HEK293 Overexpression Lysate: Product Information

Product Description
This Human Transferrin Receptor/TFRC overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Transferrin Receptor/TFRC protein (Cat: 11020-H07H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Species
Human
Sequence Information
A DNA sequence encoding the extracellular domain of human TFRC (NP_003225.2) (Cys 89-Phe 760) was expressed with a polyhistidine tag at the N-terminus.
Molecule Mass
The recombinant human TFRC comprises 689 amino acids and has a predicted molecular mass of 77.4 kDa.

Human Transferrin Receptor/TFRC HEK293 Overexpression Lysate: Usage Guide

Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Lysis Buffer
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Recommend Usage
1.  Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube. 2.  Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
Sample Buffer
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Application
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human Transferrin Receptor/TFRC HEK293 Overexpression Lysate: Alternative Names

Human CD71 Overexpression Lysate; Human p90 Overexpression Lysate; Human T9 Overexpression Lysate; Human TFR Overexpression Lysate; Human TFR1 Overexpression Lysate; Human TR Overexpression Lysate; Human TRFR Overexpression Lysate

Transferrin Receptor/TFRC Background Information

Transferrin receptor protein 1, also known as transferrin receptor, Trfr, p9, CD71 and TFRC, is a single-pass type II membrane protein which belongs to thepeptidase M28 family and M28B subfamily. TFRC / CD71 is a membrane-bound protein expressed in larger amounts in proliferating. The specific expression of TFRC can represent a diagnostic tool or a therapeutic target in solid tumours expressing this antigen. Transferrin receptor is necessary for development of erythrocytes and the nervous system. TFRC / CD71 is regulated by cellular iron levels through binding of the iron regulatory proteins, IRP1 and IRP2, to iron-responsive elements in the 3'-UTR. Up-regulated upon mitogenic stimulation. TFRC / CD71 represents a marker of malignant transformation in the pancreas that could be applied as potential diagnostic and therapeutic target.
Full Name
transferrin receptor
References
  • Douabin-Gicquel V., et al., 2001,Hum. Genet. 109:393-401.
  • Ryschich,E. et al., 2004,Eur J Cancer. 40 (9):1418-22.
  • Tosoni D., et al., 2005, Cell 123:875-888.
  • Wollscheid B., et al., 2009, Nat. Biotechnol. 27:378-386.
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