Skip to Content
Merck
CN
All Photos(5)

Documents

MAB4381

Sigma-Aldrich

Anti-TRA-1-81 Antibody, clone TRA-1-81

clone TRA-1-81, Chemicon®, from mouse

Sign Into View Organizational & Contract Pricing
All Photos(5)
UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

100

antibody form

saturated ammonium sulfate (SAS) precipitated

antibody product type

primary antibodies

clone

TRA-1-81, monoclonal

species reactivity

human

manufacturer/tradename

Chemicon®

technique(s)

flow cytometry: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
immunoprecipitation (IP): suitable
western blot: suitable

input

sample type: human embryonic stem cell(s)
sample type induced pluripotent stem cell(s)

isotype

IgM

shipped in

wet ice

target post-translational modification

unmodified

Related Categories

General description

Human embryonal carcinoma (EC) cells are the stem cells of teratocarcinomas, and they are key components of germ cell tumors (GCTs). Embryonal carcinoma, as do all human pluripotent stem cells, expresses TRA-1-60 and TRA-1-81 antigens, and although their molecular identities are unknown, they are commonly used as markers of undifferentiated pluripotent human stem cells.

Specificity

This antibody reacts with TRA-1-81 antigen that is expressed upon the surface of human tetracarcinoma stem cells (EC), human embryonic germ cells (EG) and human embryonic stem cells (ES). No immunoreactivity is seen with murine EC, EG or ES cells. Both the TRA-1-81 and TRA-1-60 monoclonal antibodies (MAB4360) recognize antigens that are associated with a pericellular matrix proteoglycan. TRA-1-60 reacts with a sialidase-sensitive epitope whilst TRA-1-81 reacts with an unknown epitope of the same molecule.

Immunogen

Human embryonal carcinoma cell line 2102Ep

Application

Anti-TRA-1-81 Antibody, clone TRA-1-81 detects level of TRA-1-81 & has been published & validated for use in WB, FC, IF, IP & IC.
Immunofluorescence: A previous lot of this antibody was used in IF.

Western Blot: A previous lot of this antibody was used in WB.

Immunoprecipitation: A previous lot of this antibody was used in IP.

Immunohistochemistry: A previous lot of this antibody was used in IH.

Flow Cytometry: A starting range of 10-20 µg/mL is suggested.

Optimal working dilutions must be determined by the end user.
Research Category
Stem Cell Research
Research Sub Category
Pluripotent & Early Differentiation

Target description

420/250 kDa

Physical form

Format: Purified
Liquid in 0.05 M Potassium Phosphate, 0.3 M NaCl, pH 8.0 with 0.05% Sodium Azide.

Storage and Stability

Stable for 1 year at from date of receipt.

Analysis Note

Control
Human embryonic stem cells

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

WGK

nwg

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

C Eguizabal et al.
Stem cells (Dayton, Ohio), 29(8), 1186-1195 (2011-06-18)
Gamete failure-derived infertility affects millions of people worldwide; for many patients, gamete donation by unrelated donors is the only available treatment. Embryonic stem cells (ESCs) can differentiate in vitro into germ-like cells, but they are genetically unrelated to the patient.
Tomoko Andoh-Noda et al.
Molecular brain, 8, 31-31 (2015-05-28)
Rett syndrome (RTT) is one of the most prevalent neurodevelopmental disorders in females, caused by de novo mutations in the X-linked methyl CpG-binding protein 2 gene, MECP2. Although abnormal regulation of neuronal genes due to mutant MeCP2 is thought to
Expression of pluripotent stem cell markers in the human fetal ovary.
Kerr, CL; Hill, CM; Blumenthal, PD; Gearhart, JD
Human Reproduction null
Justin K Ichida et al.
Nature chemical biology, 10(8), 632-639 (2014-06-24)
The reprogramming of somatic cells to pluripotency using defined transcription factors holds great promise for biomedicine. However, human reprogramming remains inefficient and relies either on the use of the potentially dangerous oncogenes KLF4 and CMYC or the genetic inhibition of
Hidehito Saito et al.
Stem cells international, 2016, 8394960-8394960 (2016-04-09)
Induced pluripotent stem cells (iPSCs) derived from somatic cells of patients hold great promise for autologous cell therapies. One of the possible applications of iPSCs is to use them as a cell source for producing autologous lymphocytes for cell-based therapy
View All Related Papers

Articles

A Serum-Free and Feeder-Free Defined Medium That Enables Weekend-Free Culture of Undifferentiated Human ES/iPS Cells

Skip weekend feedings. Defined serum-free and feeder-free expansion media for human pluripotent stem cells (ES and iPS cells). See publications and protocols.

Single Transfection of a Synthetic Polycistronic Self-replicative RNA Yields High Numbers of Transgene-free Human iPSCs

The Simplicon™ RNA Reprogramming Technology is a next generation reprogramming system that uses a single synthetic, polycistronic self-replicating RNA strand engineered to mimic cellular RNA to generate human iPS cells.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service