Name: XFD350 Anti-human CD71 Antibody *OKT-9*
Brand: AAT Bioquest
SKU: 10713140
Availability: InStock

XFD350 Anti-human CD71 Antibody

OKT-9

The OKT-9 monoclonal antibody binds with human CD71, a 95 kD glycoprotein commonly expressed on the surface of reticulcytes, proliferating cells, reticulocytes and erythroid precursors. In many organisms, CD71 acts to positively regulate B cell proliferation, is a positive regulator of bone resorption and is an enhancer of T cell proliferation. From a research standpoint, it is of biological interest due to its association with vital macromolecules/ligands like Transferrin. CD71 is a fairly uncommon antibody target, with a little more than 4300 publications in the last decade. Even still, CD71 is frequently used in flow cytometry applications as a phenotypic marker for differentiation of cell types, especially in the study of immunology. This antibody was purified through affinity chromatography and conjugated to XFD350 (ex/em = 343/441 nm). XFD350 is manufactured by AAT Bioquest, and it has a chemical structure similar to that of Alexa Fluor® 350 (Alexa Fluor® is the trademark of Thermo Fisher). It is compatible with the 355 nm laser and 450/50 nm bandpass filter (for example, as in the BD Special Order LSRFortessa™ Cell Analyzer).

Datasheet

COA

Catalog	Size	Price	Quantity
10713140	100 tests	Price
10713141	500 tests	Price

Conjugation

We provide custom conjugation services for this antibody (e.g. labeling of CD71 antibody with HRP). A list of available labels can be found in the table below:

Label Type	Available Labels
AF	AF350, AF488, AF555, AF594, AF647, AF680, AF700, AF750
Proteins	HRP, Alkaline Phosphatase, Streptavidin
Tandems	APC, APC/Cy7, APC/AF750, APC/iFluor™ 700, APC/iFluor™ 750, PE, PE/Cy5, PE/Cy7, PE/AF610, PE/AF700, PE/iFluor™ 594, PE/iFluor™ 647, PE/iFluor™ 700, PE/iFluor™ 750, PE/Texas Red®, PerCP, PerCP/Cy5.5
Small Molecules	Biotin
Traditional Dyes	FITC (fluorescein), TRITC, PacBlue, PacOrange, Cy3, Cy5
iFluor	350, 405, 430, 450, 488, 514, 532, 546, 555, 560, 568, 594, 610, 633, 647, 660, 670, 680, 700, 710, 750, 790, 800, 810, 820, 840, 860, A7
mFluor	UV375, UV460, Violet 450, Violet 500, Violet 510, Violet 540, Blue 570, Green 620, Red 700, Red 780

For additional information about custom conjugations, please consult our services page

here

Antibody properties

Other names	T9, Transferrin receptor, TFRC
Clone	OKT-9
Host	Mouse
Isotype	IgG1, kappa
Reactivity	Human
Application	Flow Cytometry (FACS), Fluorescence Imaging

Spectral properties

Correction factor (260 nm)	0.25
Correction factor (280 nm)	0.19
Extinction coefficient (cm ^-1 M ^-1)	19000
Excitation (nm)	343
Emission (nm)	441

Usage and storage

Intended use

Research Use Only (RUO)

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Shipping	Standard overnight for United States, inquire for international

Page updated on August 21, 2026