Crystal Structure of Activated HutP; An RNA Binding Protein that Regulates Transcription of the hut Operon in Bacillus subtilisKumarevel, T.S., Fujimoto, Z., Karthe, P., Oda, M., Mizuno, H., Kumar, P.K.R.
(2004) Structure 12: 1269-1280
- PubMed: 15242603
- DOI: 10.1016/j.str.2004.05.005
- Also Cited By: 3BOY, 2GZT, 1WRQ, 1WRO, 1WRN, 1WPV, 1WPU, 1WPT, 1WPS, 1WMQ
- PubMed Abstract:
- cis-acting regulatory sequences for antitermination in the transcript of the Bacillus subtilis hut operon and histidine-dependent binding of HutP to the transcript containing the regulatory sequences
Oda, M.,Kobayashi, N.,Ito, A.,Kurusu, Y.,Taira, K.
(2000) Mol.Microbiol. 35: 1244
- Crystallization and preliminary X-ray diffraction studies of HutP protein: an RNA-binding protein that regulates the transcription of hut operon in Bacillus subtilis
Kumarevel, T.S.,Fujimoto, Z.,Padmanabhan, B.,Oda, M.,Nishikawa, S.,Mizuno, H.,Kumar, P.K.R.
(2002) J.Struct.Biol. 138: 237
HutP is an L-histidine-activated RNA binding protein that regulates the expression of the histidine utilization (hut) operon in Bacillus subtilis by binding to cis-acting regulatory sequences on the hut mRNA. The crystal structure of HutP complexed w ...
HutP is an L-histidine-activated RNA binding protein that regulates the expression of the histidine utilization (hut) operon in Bacillus subtilis by binding to cis-acting regulatory sequences on the hut mRNA. The crystal structure of HutP complexed with an L-histidine analog showed a novel fold; there are four antiparallel beta strands in the central region of each monomer, with two alpha helices each on the front and back. Two HutP monomers form a dimer, and three dimers are arranged in crystallographic 3-fold symmetry to form a hexamer. A histidine analog was located in between the two monomers of HutP, with the imidazole group of L-histidine hydrogen bonded to Glu81. An activation mechanism is proposed based on the identification of key residues of HutP. The HutP binding region in hut mRNA was defined: it consists of three UAG trinucleotide motifs separated by four spacer nucleotides. Residues of HutP potentially important for RNA binding were identified.
Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 6, Tsukuba, Ibaraki 305-8566, Japan.