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Crystal Structure of Histidine-containing Phosphotransfer Protein, ZmHP2, from maize


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the histidine-containing phosphotransfer protein ZmHP2 from maize

Sugawara, H.Kawano, Y.Hatakeyama, T.Yamaya, T.Kamiya, N.Sakakibara, H.

(2005) Protein Sci. 14: 202-208

  • DOI: 10.1110/ps.041076905
  • Also Cited By: 4G78, 3US6

  • PubMed Abstract: 
  • In higher plants, histidine-aspartate phosphorelays (two-component system) are involved in hormone signaling and stress responses. In these systems, histidine-containing phosphotransfer (HPt) proteins mediate the signal transmission from sensory hist ...

    In higher plants, histidine-aspartate phosphorelays (two-component system) are involved in hormone signaling and stress responses. In these systems, histidine-containing phosphotransfer (HPt) proteins mediate the signal transmission from sensory histidine kinases to response regulators, including integration of several signaling pathways or branching into different pathways. We have determined the crystal structure of a maize HPt protein, ZmHP2, at 2.2 A resolution. ZmHP2 has six alpha-helices with a four-helix bundle at the C-terminus, a feature commonly found in HPt domains. In ZmHP2, almost all of the conserved residues among plant HPt proteins surround this histidine, probably forming the docking interface for the receiver domain of histidine kinase or the response regulator. Arg102 of ZmHP2 is conserved as a basic residue in plant HPt proteins. In bacteria, it is replaced by glutamine or glutamate that form a hydrogen bond to Ndelta atoms of the phospho-accepting histidine. It may play a key role in the complex formation of ZmHP2 with receiver domains.


    Organizational Affiliation

    Laboratory for Communication Mechanisms, RIKEN Plant Science Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. sugawara@psc.riken.go.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
histidine-containing phosphotransfer protein
A, B, C, D
145Zea maysMutation(s): 0 
Gene Names: ZmHP2 (541625)
Find proteins for Q9SLX1 (Zea mays)
Go to UniProtKB:  Q9SLX1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.209 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 148.800α = 90.00
b = 81.410β = 123.42
c = 89.500γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
AMoREphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-01-25
    Type: Initial release
  • Version 1.1: 2007-10-04
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance