+A20, encoded by the *TNFAIP3* gene, is a crucial protein that acts as a brake on [Inflammation](/wiki/inflammation). It functions as a key negative regulator of the [NF-κB](/wiki/nf-kb) signaling pathway, preventing uncontrolled immune responses and cell death.
+## See also
+- [Gene](/wiki/gene)
+- [Immunity](/wiki/immunity)
+- [Apoptosis](/wiki/apoptosis)