Proteins differentially phosphorylated in neuroblastoma cell line following ATRA treatment as identified by MALDI-Tof MS.

a<p>Spot number were defined according to spot positions in 2-DE in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0018254#pone-0018254-g004" target="_blank">Fig. 4</a>.</p>b<p>MW, molecular weight.</p>c<p>pI, isoelectric point.</p>d<p>Number of matched mass values on number of total mass values searched.</p>e<p>The sequence coverage, which is calculated as the percentage of identified sequence to the complete sequence of the matched protein.</p>f<p>Ratio between level of phosphorylation in treated and untreated cells. Standard deviation is indicated. For the significance two-sided Student's <i>t</i> test was used (* p<0.05, ** p<0.01).