TRA-1-60 is a monoclonal antibody raised against a cell surface antigen of human embryonal carcinoma (EC) cells. The TRA-1-60 epitope is also found on human embryonic stem (ES) cells and primordial germ cells, and TRA-1-60 serves as a serum marker in patients with germ cell tumors. Investigation into the identity of the TRA-1-60 epitope demonstrated that it is a carbohydrate carried by a cell surface, sialylated, keratan sulfate proteoglycan. Subsequent |evidence implicated podocalyxin as a carrier for the TRA-1-60 epitope. The original TRA-1-60 antibody is now known to include two distinct specificities that recognize a neuraminidase resistant epitope [TRA-1-60(R)] or a neuraminidase-sensitive epitope [TRA-1-60(S)]. ||Applications: |Suitable for use in Flow Cytometry. Other applications not tested.||Recommended Dilution:|Flow Cytometry: Designed to quantitatively determine the percentage of cells bearing TRA-1-60(R) within a population and qualitatively determine the density of TRA-1-60(R) on cell surfaces by flow cytometry. Cell surface expression of TRA-1-60(R) is determined by flow cytometry using 488 nm wavelength excitation and monitoring emitted fluorescence with a detector BG01V cells were stained with PE-conjugated anti-human TRA-1-6 (filled histogram) or isotype control (open histogram). |Optimal dilutions to be determined by the researcher.| |Storage and Stability:|Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: PE conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.