1bcn: Difference between revisions

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[[Image:1bcn.gif|left|200px]]
{{Seed}}
[[Image:1bcn.png|left|200px]]


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{{STRUCTURE_1bcn|  PDB=1bcn  |  SCENE=  }}  
{{STRUCTURE_1bcn|  PDB=1bcn  |  SCENE=  }}  


'''THREE-DIMENSIONAL SOLUTION STRUCTURE OF HUMAN INTERLEUKIN-4 BY MULTI-DIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY'''
===THREE-DIMENSIONAL SOLUTION STRUCTURE OF HUMAN INTERLEUKIN-4 BY MULTI-DIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY===




==Overview==
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The three-dimensional solution structure of recombinant human interleukin-4, a protein of 133 residues and 15.4 kilodaltons that plays a key role in the immune and inflammatory systems, has been solved by multidimensional heteronuclear magnetic resonance spectroscopy. The structure is dominated by a left-handed four-helix bundle with an unusual topology comprising two overhand connections. The linker elements between the helices are formed by either long loops, small helical turns, or short strands. The overall topology is remarkably similar to that of growth hormone and granulocyte-macrophage colony stimulating factor, despite the absence of any sequence homology, and substantial differences in the relative lengths of the helices, the length and nature of the various connecting elements, and the pattern of disulfide bridges. These three proteins, however, bind to cell surface receptors belonging to the same hematopoietic superfamily, which suggests that interleukin-4 may interact with its receptor in an analogous manner to that observed in the crystal structure of the growth hormone-extracellular receptor complex.
The line below this paragraph, {{ABSTRACT_PUBMED_1609277}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_1609277}}


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


==Reference==
==Reference==
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[[Category: Powers, B.]]
[[Category: Powers, B.]]
[[Category: Cytokine]]
[[Category: Cytokine]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 11:20:39 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 18:50:27 2008''

Revision as of 15:50, 30 June 2008

File:1bcn.png

Template:STRUCTURE 1bcn

THREE-DIMENSIONAL SOLUTION STRUCTURE OF HUMAN INTERLEUKIN-4 BY MULTI-DIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

Template:ABSTRACT PUBMED 1609277

About this Structure

1BCN is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

Three-dimensional solution structure of human interleukin-4 by multidimensional heteronuclear magnetic resonance spectroscopy., Powers R, Garrett DS, March CJ, Frieden EA, Gronenborn AM, Clore GM, Science. 1992 Jun 19;256(5064):1673-7. PMID:1609277

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