https://en.wikipedia.org/wiki/CEBPA#/media/File:1nwq.png Day 343 has 27 protein-coding genes (browser view) including CEBPA (CCAAT/enhancer binding protein alpha).
CEBPA is a transcription factor, a protein that binds to DNA to control gene transcription. Specifically, it is a bZIP factor, named for the zipper-like structure that it uses to grab DNA.
Click here to see all 8373945 letters of Day 343 with CEBPA underlined.