Table 2.

Effect of coexpression of CD8β1 and a wild-type chicken β1 integrin on colony formation

Cells	% Colony-forming efficiency*	% Abortive colonies
CD8β1 + puro	9.7  ±  1.6	67.3  ±  3.8
CD8β1 + wt	22.1  ±  2.6	33.5  ±  2.1

Data are means of triplicate dishes ± standard deviation. ∗, % of plated cells that form colonies.