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New page: left|200px<br /><applet load="1joy" size="450" color="white" frame="true" align="right" spinBox="true" caption="1joy" /> '''SOLUTION STRUCTURE OF THE HOMODIMERIC DOMAIN...
 
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[[Image:1joy.jpg|left|200px]]<br /><applet load="1joy" size="450" color="white" frame="true" align="right" spinBox="true"  
[[Image:1joy.jpg|left|200px]]<br /><applet load="1joy" size="350" color="white" frame="true" align="right" spinBox="true"  
caption="1joy" />
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'''SOLUTION STRUCTURE OF THE HOMODIMERIC DOMAIN OF ENVZ FROM ESCHERICHIA COLI BY MULTI-DIMENSIONAL NMR.'''<br />
'''SOLUTION STRUCTURE OF THE HOMODIMERIC DOMAIN OF ENVZ FROM ESCHERICHIA COLI BY MULTI-DIMENSIONAL NMR.'''<br />


==Overview==
==Overview==
Escherichia coli osmosensor EnvZ is a protein histidine kinase that plays, a central role in osmoregulation, a cellular adaptation process involving, the His-Asp phosphorelay signal transduction system. Dimerization of the, transmembrane protein is essential for its autophosphorylation and, phosphorelay signal transduction functions. Here we present the, NMR-derived structure of the homodimeric core domain (residues 223-289) of, EnvZ that includes His 243, the site of autophosphorylation and phosphate, transfer reactions. The structure comprises a four-helix bundle formed by, two identical helix-turn-helix subunits, revealing the molecular assembly, of two active sites within the dimeric kinase.
Escherichia coli osmosensor EnvZ is a protein histidine kinase that plays a central role in osmoregulation, a cellular adaptation process involving the His-Asp phosphorelay signal transduction system. Dimerization of the transmembrane protein is essential for its autophosphorylation and phosphorelay signal transduction functions. Here we present the NMR-derived structure of the homodimeric core domain (residues 223-289) of EnvZ that includes His 243, the site of autophosphorylation and phosphate transfer reactions. The structure comprises a four-helix bundle formed by two identical helix-turn-helix subunits, revealing the molecular assembly of two active sites within the dimeric kinase.


==About this Structure==
==About this Structure==
1JOY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1JOY OCA].  
1JOY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JOY OCA].  


==Reference==
==Reference==
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[[Category: Park, H.]]
[[Category: Park, H.]]
[[Category: Qian, H.]]
[[Category: Qian, H.]]
[[Category: Saha, S.K.]]
[[Category: Saha, S K.]]
[[Category: Tanaka, T.]]
[[Category: Tanaka, T.]]
[[Category: Tomomori, C.]]
[[Category: Tomomori, C.]]
[[Category: Tong, K.I.]]
[[Category: Tong, K I.]]
[[Category: Zhu, Y.]]
[[Category: Zhu, Y.]]
[[Category: histidine kinase]]
[[Category: histidine kinase]]
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[[Category: sensory transduction]]
[[Category: sensory transduction]]


''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 18:26:22 2007''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:25:04 2008''