Table 2.

Reporter vector expression in progenitor colonies

Vector	Replicates	Neo expression		GFP expression
				Unselected		G418-selected
		G418r*	P†	% GFP+‡	P	% GFP+	P
MGPN2	4	53  ± 9		18  ± 14		47  ± 17
INS4(+)	4	77  ± 9	0.03	46  ± 24	0.02	55  ± 26	0.25
INS4(−)	3	51  ± 11	0.86	21  ± 21	0.16	30  ± 28	0.08

^*Percent G418^r colonies = [colony count with G418]/[colony count without G418] × 100. 

^†Probability compared to MGPN2 control using t test. 

^‡Percent GFP⁺ cells determined by flow cytometric analysis of colony pools.