1hrf: Difference between revisions

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


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{{STRUCTURE_1hrf|  PDB=1hrf  |  SCENE=  }}  
{{STRUCTURE_1hrf|  PDB=1hrf  |  SCENE=  }}  


'''SOLUTION STRUCTURE OF THE EPIDERMAL GROWTH FACTOR-LIKE DOMAIN OF HEREGULIN-ALPHA, A LIGAND FOR P180ERB4'''
===SOLUTION STRUCTURE OF THE EPIDERMAL GROWTH FACTOR-LIKE DOMAIN OF HEREGULIN-ALPHA, A LIGAND FOR P180ERB4===




==Overview==
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p185erbB-2 and p180erbB-4 are epidermal growth factor (EGF) receptor-like tyrosine kinases, whose co-expression is observed in many breast carcinomas. Heregulins (HRGs), which contain an immunoglobulin unit and an EGF-like domain, bind to p180erbB-4 and activate p180erbB-4 and p185erbB-2 through transphosphorylation or receptor heterodimerization. The EGF-like domain is sufficient for the activation. Despite the sequence similarity, no cross activity is seen between the p180erbB-4 ligands (HRGs) and the p170erbB-1 ligands [EGF and transforming growth factor (TGF)-alpha]. To investigate the structural basis of receptor specificity, we have determined the solution structure of the EGF-like domain of HRG-alpha by two-dimensional 1H nuclear magnetic resonance spectroscopy and simulated annealing calculations. Though its main-chain fold is similar to those of EGF and TGF-alpha, distinctive structural features are observed on the molecular surface including an ionic cluster and hydrophobic patches, which afford HRG-alpha the specific affinity for p180erbB-4. The structure should provide a basis for the structure-activity relationship of HRGs and for the design of drugs which prevent progression of breast cancer.
The line below this paragraph, {{ABSTRACT_PUBMED_8062828}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 8062828 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8062828}}


==About this Structure==
==About this Structure==
1HRF 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=1HRF OCA].  
1HRF 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=1HRF OCA].  


==Reference==
==Reference==
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[[Category: Nagata, K.]]
[[Category: Nagata, K.]]
[[Category: Growth factor]]
[[Category: Growth factor]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 19:09:39 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 08:35:00 2008''

Revision as of 05:35, 1 July 2008

File:1hrf.png

Template:STRUCTURE 1hrf

SOLUTION STRUCTURE OF THE EPIDERMAL GROWTH FACTOR-LIKE DOMAIN OF HEREGULIN-ALPHA, A LIGAND FOR P180ERB4

Template:ABSTRACT PUBMED 8062828

About this Structure

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

Reference

Solution structure of the epidermal growth factor-like domain of heregulin-alpha, a ligand for p180erbB-4., Nagata K, Kohda D, Hatanaka H, Ichikawa S, Matsuda S, Yamamoto T, Suzuki A, Inagaki F, EMBO J. 1994 Aug 1;13(15):3517-23. PMID:8062828

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