1wn0: Difference between revisions

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[[Image:1wn0.gif|left|200px]]
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[[Image:1wn0.png|left|200px]]


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{{STRUCTURE_1wn0|  PDB=1wn0  |  SCENE=  }}  
{{STRUCTURE_1wn0|  PDB=1wn0  |  SCENE=  }}  


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




==Overview==
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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.
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==About this Structure==
==About this Structure==
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[[Category: Signaling protein]]
[[Category: Signaling protein]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 06:57:12 2008''

Revision as of 03:57, 28 July 2008

File:1wn0.png

Template:STRUCTURE 1wn0

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

Template:ABSTRACT PUBMED 15576555

About this Structure

1WN0 is a Single protein structure of sequence from Zea mays. Full crystallographic information is available from OCA.

Reference

Crystal structure of the histidine-containing phosphotransfer protein ZmHP2 from maize., Sugawara H, Kawano Y, Hatakeyama T, Yamaya T, Kamiya N, Sakakibara H, Protein Sci. 2005 Jan;14(1):202-8. Epub 2004 Dec 2. PMID:15576555

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