This is the N-terminal region of GTP-binding HflX-like proteins. The full-length members bind and interact with the 50S ribosome and are GTPases, hydrolysing GTP/GDP/ATP/ADP. This N-terminal region is necessary for stability of the whole protein.

1: E. coli HflX interacts with 50S ribosomal subunits in presence of nucleotides. Jain N, Dhimole N, Khan AR, De D, Tomar SK, Sajish M, Dutta D, Parrack P, Prakash B; Biochem Biophys Res Commun. 2009;379:201-205. PMID:19109926

2: Properties of HflX, an enigmatic protein from Escherichia coli. Dutta D, Bandyopadhyay K, Datta AB, Sardesai AA, Parrack P; J Bacteriol. 2009;191:2307-2314. PMID:19181811

3: Toward understanding the function of the universally conserved GTPase HflX from Escherichia coli: a kinetic approach. Shields MJ, Fischer JJ, Wieden HJ; Biochemistry. 2009;48:10793-10802. PMID:19824612