cd04867

TGS_YchF_C: This subfamily represents TGS domain-containing YchF GTP-binding protein, a universally conserved GTPase whose function is unknown. The N-terminal domain of the YchF protein belongs to the Obg-like family of GTPases, and some members of the family contain a C-terminal TGS domain. TGS is a small domain of about 50 amino acid residues with a predominantly beta-sheet structure. There is no direct information on the function of the TGS domain, but its presence in two types of regulatory proteins (the GTPases and guanosine polyphosphate phosphohydrolases/synthetases) suggests a ligand (most likely nucleotide)-binding, regulatory role.