Sentences with phrase «previously at a low frequency»
Two IFN - alpha - unresponsive mutants were isolated previously at a low frequency (ca. 10 -LRB--8)-RRB- by selecting mutagenized 2fTGH cells in selective medium containing 6 - thioguanine and IFN - alpha.
http://www.pnas.org/ Not exact matches
«Previously we thought there wasn't much emission at high or low frequencies, but now it looks like there is.
Both of these cell line - associated XMRV genomes were found to exhibit a lower degree of intra-strain variation than previously reported for XMRV from 22Rv1 cells [20], with only 19 SNPs detected in the 22Rv1 - associated XMRV genome at the 3 % frequency cutoff by deep sequencing, and only 25 SNPs in the LNCaP - associated genome (Fig. 7A; Table S1).