Download MendeleyStructural characterization of the full-length response regulator spr1814 in complex with a phosphate analogue reveals a novel conformational plasticity of the linker region
Park, A.K., Lee, J.H., Chi, Y.M., Park, H.(2016) Biochem Biophys Res Commun 473: 625-629
- PubMed: 27038544
- DOI: https://doi.org/10.1016/j.bbrc.2016.03.144
- Primary Citation of Related Structures:
4ZMR, 4ZMS - PubMed Abstract:
Spr1814 of Streptococcus pneumoniae is a response regulator (RR) that belongs to the NarL/FixJ subfamily and has a four-helix helix-turn-helix DNA-binding domain. Here, the X-ray crystal structure of the full-length spr1814 in complex with a phosphate analogue beryllium fluoride (BeF3(-)) was determined at 2.0 Å. This allows for a structural comparison with the previously reported full-length unphosphorylated spr1814. The phosphorylation of conserved aspartic acid residue of N-terminal receiver domain triggers a structural perturbation at the α4-β5-α5 interface, leading to the domain reorganization of spr1814, and this is achieved by a rotational change in the C-terminal DNA-binding domain.
Organizational Affiliation:
Division of Biotechnology, College of Life Sciences, Korea University, Seoul 136-713, South Korea; Division of Polar Life Sciences, Korea Polar Research Institute, Yeonsu-gu, Incheon 406-840, South Korea.
