Homologous Superfamily

3H domain superfamily (IPR035922)

Short name: 3H_dom_sf

Overlapping entries


The transcription regulator TM1602 from Thermotoga maritima is a DNA-binding protein thought to belong to a family of de novo NAD synthesis pathway regulators. TM1602 has an N-terminal DNA-binding domain and a C-terminal 3H regulatory domain. The N-terminal domain appears to bind to the NAD promoter region and repress the de novo NAD biosynthesis operon, while the C-terminal 3H domain may bind to nicotinamide, nicotinic acid, or other substrate/products [PMID: 17256761]. The 3H domain has a 2-layer alpha/beta sandwich fold.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.