| Type: | Family | Name: | Transcriptional repressor BetI |
| Description: | BetI is a DNA-binding transcriptional repressor of the bet (betaine) regulon which is related to TetR [, , ]. Choline, through BetI, induces the expression of the betaine biosynthesis genes betA and betB by de-repression. The choline porter gene betT is also part of this regulon in Escherichia coli[]. Note that a different transcriptional regulator, ArcA, controls the expression of bet regulon genes in response to oxygen, as BetA is an oxygen-dependent enzyme. | Short Name: | Tscrpt_rep_BetI |
