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171R-1

Sigma-Aldrich

CD71 (EP232) Rabbit Monoclonal Primary Antibody

Synonym(s):

TFR1, TRF, TRFR, Transferrin Receptor 1, p90, transferrin receptor (p90, CD71)

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

100
500

conjugate

unconjugated

antibody form

culture supernatant

antibody product type

primary antibodies

clone

EP232, monoclonal

description

For In Vitro Diagnostic Use in Select Regions (See Chart)

form

buffered aqueous solution

species reactivity

human

packaging

vial of 0.1 mL concentrate (171R-14)
vial of 0.1 mL concentrate Research Use Only (171R-14-RUO)
vial of 0.5 mL concentrate (171R-15)
vial of 1.0 mL concentrate (171R-16)
vial of 1.0 mL concentrate Research Use Only (171R-16-RUO)
vial of 1.0 mL pre-dilute Research Use Only (171R-17-RUO)
vial of 1.0 mL predilute ready-to-use (171R-17)
vial of 7.0 mL pre-dilute ready-to-use Research Use Only (171R-18-RUO)
vial of 7.0 mL predilute ready-to-use (171R-18)

manufacturer/tradename

Cell Marque

technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:50-1:200 (concentrated)

isotype

IgG

control

bone marrow

shipped in

wet ice

storage temp.

2-8°C

visualization

cytoplasmic, membranous

General description

Transferrin receptor 1 (CD71) is expressed on placental syncytiotrophoblasts, myocytes, basal keratinocytes, hepatocytes, endocrine pancreas, spermatocytes, and erythroid precursors. The level of transferrin receptor expression is highest in early erythroid precursors through the intermediate normoblast phase, after which expression decreases through the reticulocyte phase. The maturation of erythrocytes results in loss of transferrin receptor expression. AntiCD71 is useful in identifying erythroid precursors. The high level of transferrin receptor within erythroid precursors makes anti-CD71 an excellent marker for evaluation of erythroid precursors within bone marrow biopsy specimens and shows the following features: 1) distinct membranous and cytoplasmic staining pattern, which is easily recognized in bone marrow biopsy; 2) restriction to erythroid lineage within bone marrow biopsy specimens; 3) CD71 expression decreases with the maturation of erythrocytes, with the highest level seen in early forms and the lowest level in late normoblast stage, and most importantly; 4) mature erythrocytes do not express CD71.

Quality

United States - IVD
Canada - IVD
European Union - IVD
Japan - RUO

Linkage

CD71 Positive Control Slides, Product No. 171S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).

Physical form

Predilute: diluted in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide
Concentrate: diluted in Phosphate Buffered Saline, pH 7.2, with 1% BSA and <0.1% Sodium Azide

Preparation Note

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Other Notes

For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com

Legal Information

Cell Marque is a trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Changes in cell surface antigen expression during hemopoietic differentiation.
Sieff C, Bicknell D, Caine G, et al.
Blood, 60(3), 703-713 (1982)
Cell surface antigen expression in human erythroid progenitors: erythroid and megakaryocytic markers.
Nakahata T and Okumura N
Leukemia & Lymphoma, 13(5-6), 401-409 (1994)
Expression of transferrin receptor on murine hematopoietic progenitors.
Lesley J, Hyman R, Schulte R, et al.
Cellular Immunology, 83(1), 14-25 (1984)
P Ponka et al.
The international journal of biochemistry & cell biology, 31(10), 1111-1137 (1999-12-03)
The transferrin receptor is a membrane glycoprotein whose only clearly defined function is to mediate cellular uptake of iron from a plasma glycoprotein, transferrin. Iron uptake from transferrin involves the binding of transferrin to the transferrin receptor, internalization of transferrin
T Nakahata et al.
Leukemia & lymphoma, 13(5-6), 401-409 (1994-05-01)
This review summarizes the changes in cell surface antigen expression during proliferation and differentiation of human erythroid progenitors. The content is based on our experimental data obtained from complement-mediated cytotoxicity assays against hematopoietic progenitors and a combined technique of sequential

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