http://www.nature.com.libproxy.mit.edu/nrg/journal/v7/n1/fig_tab/nrg1747_F1.html Day 158 has 22 protein-coding genes (browser view) including FOXP2 (forkhead box protein 2).
FOXP2 was discovered by studying a family with a genetic disorder that prevented them from speaking clearly. Intriguingly, it probably played a major role in human evolution and our development of speech.
Click here to see all 8386630 letters of Day 158 with FOXP2 underlined.