Day 122 has 39 protein-coding genes (browser view). Between two of these genes (PTTG1 and ATP10B) lies the second most written about microRNA gene, miR-146a.
miR-146a seems to be involved in immune responses; it is switched on by some aspects of inflammation, and in turn it turns off some aspects, forming a negative regulatory loop.
Click here to see all 8644679 letters of Day 122, with MIR146A underlined.