リジェンドには以下のようにあるわね。
>>
g, FACS analysis of integrin α7 expression in Fgf4-induced stem cells. Over 40% of Fgf4-induced stem cells strongly expressed both the pluripotency marker Oct4-GFP and the trophoblast marker integrin α7. The bottom panel shows an isotype control for integrin α7 antibody. In ES cells, integrin-α7-expressing cells were less than 0.1% (data not shown; three independent ES cell lines were examined).
