TRA-1-60 antigen is expressed upon the surface of human embryonic (ES) or human induced pluripotent stem (hiPS) cells. Therefore, it has been used as a marker of human ES and hiPS cells. In addition, since TRA-1-60 is expressed on the surface of cells, it can be used in fluorescence activated cell sorting (FACS) analysis or immunofluorescence assays without fixing.
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