https://en.wikipedia.org/wiki/Thymic_stromal_lymphopoietin Day 116 has 13 protein-coding genes (browser view), including TSLP (thymic stromal lymphopoeitin.)
TSLP is a cytokine: a protein signal between cells. TSLP is important in maturation and activation of immune cells.
Click here to see all 8644679 letters of Day 116 with TSLP underlined.