Fig. 6.

Presence of two potential RNA-binding regions within the hut terminator RNA, and the structure of the model 55-mer bound to HutP (PDB code: 3BOY). a hut terminator regions showing two potential binding sites for the HutP protein separated by the spacer region, highlighted in cyan. Important residues for hut binding are shown in red letters. b A model 55-mer RNA sequence mimicking the hut terminator RNA for HutP binding. The spacer region flanking sites I and II is shown in red letters. c Molecular surface representation of the quaternary complex structure showing the model 55-mer RNA binding the two surfaces (site I and site II) of HutP