1edn: Difference between revisions

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New page: left|200px<br /> <applet load="1edn" size="450" color="white" frame="true" align="right" spinBox="true" caption="1edn, resolution 2.18Å" /> '''HUMAN ENDOTHELIN-1'...
 
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[[Image:1edn.gif|left|200px]]<br />
[[Image:1edn.gif|left|200px]]<br /><applet load="1edn" size="350" color="white" frame="true" align="right" spinBox="true"  
<applet load="1edn" size="450" color="white" frame="true" align="right" spinBox="true"  
caption="1edn, resolution 2.18&Aring;" />
caption="1edn, resolution 2.18&Aring;" />
'''HUMAN ENDOTHELIN-1'''<br />
'''HUMAN ENDOTHELIN-1'''<br />


==Overview==
==Overview==
The three-dimensional structure of the vasoactive polypeptide endothelin, the most potent vasoconstrictor yet identified, has been determined by, X-ray crystallography to 2.18 A resolution. This intermediate-sized, structure was solved by molecular replacement techniques using a fragment, of an NMR-derived model for initial phasing of the data. However, comparisons of the final X-ray structure with the many diverse models, derived from NMR data indicate some important differences, especially in, the carboxy-terminal region of the molecule: the entire carboxy terminal, tail (residues 16-21) is helical in the crystal structure, but not in any, of the NMR structures. This may be a functionally significant difference, as this region is crucial for receptor binding and vasoactivity.
The three-dimensional structure of the vasoactive polypeptide endothelin, the most potent vasoconstrictor yet identified, has been determined by X-ray crystallography to 2.18 A resolution. This intermediate-sized structure was solved by molecular replacement techniques using a fragment of an NMR-derived model for initial phasing of the data. However, comparisons of the final X-ray structure with the many diverse models derived from NMR data indicate some important differences, especially in the carboxy-terminal region of the molecule: the entire carboxy terminal tail (residues 16-21) is helical in the crystal structure, but not in any of the NMR structures. This may be a functionally significant difference as this region is crucial for receptor binding and vasoactivity.
 
==Disease==
Known disease associated with this structure: High density lipoprotein cholesterol level QTL 7 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=131240 131240]]


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


==Reference==
==Reference==
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Single protein]]
[[Category: Janes, R.W.]]
[[Category: Janes, R W.]]
[[Category: Wallace, B.A.]]
[[Category: Wallace, B A.]]
[[Category: signal polypeptide g-protein coupled-receptor ligand]]
[[Category: signal polypeptide g-protein coupled-receptor ligand]]


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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:26:36 2008''