Day 121 has 73 protein-coding genes (browser view), including the gene for the beta 2 adrenergic receptor (ADRB2).
ADRB2 is one of the five types of adrenergic receptors. Adrenergic receptors are the source of the “adrenaline rush” fight-or-flight reaction. Beta receptors are the target of beta blocker heart medicines.
Click here to see all 8644679 letters of Day 121 with ADRB2 underlined.