1lmj: Difference between revisions

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


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{{STRUCTURE_1lmj|  PDB=1lmj  |  SCENE=  }}  
{{STRUCTURE_1lmj|  PDB=1lmj  |  SCENE=  }}  


'''NMR Study of the Fibrillin-1 cbEGF12-13 Pair of Ca2+ Binding Epidermal Growth Factor-like Domains'''
===NMR Study of the Fibrillin-1 cbEGF12-13 Pair of Ca2+ Binding Epidermal Growth Factor-like Domains===




==Overview==
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Fibrillin-1 is a mosaic protein mainly composed of 43 calcium binding epidermal growth factor-like (cbEGF) domains arranged as multiple, tandem repeats. Mutations within the fibrillin-1 gene cause Marfan syndrome (MFS), a heritable disease of connective tissue. More than 60% of MFS-causing mutations identified are localized to cbEGFs, emphasizing that the native properties of these domains are critical for fibrillin-1 function. The cbEGF12-13 domain pair is within the longest run of cbEGFs, and many mutations that cluster in this region are associated with severe, neonatal MFS. The NMR solution structure of Ca(2+)-loaded cbEGF12-13 exhibits a near-linear, rod-like arrangement of domains. This observation supports the hypothesis that all fibrillin-1 (cb)EGF-cbEGF pairs, characterized by a single interdomain linker residue, possess this rod-like structure. The domain arrangement of cbEGF12-13 is stabilized by additional interdomain packing interactions to those observed for cbEGF32-33, which may help to explain the previously reported higher calcium binding affinity of cbEGF13. Based on this structure, a model of cbEGF11-15 that encompasses all known neonatal MFS missense mutations has highlighted a potential binding region. Backbone dynamics data confirm the extended structure of cbEGF12-13 and lend support to the hypothesis that a correlation exists between backbone flexibility and cbEGF domain calcium affinity. These results provide important insight into the potential consequences of MFS-associated mutations for the assembly and biomechanical properties of connective tissue microfibrils.
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{{ABSTRACT_PUBMED_12511552}}


==Disease==
==Disease==
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==About this Structure==
==About this Structure==
1LMJ 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=1LMJ OCA].  
1LMJ 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=1LMJ OCA].  


==Reference==
==Reference==
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[[Category: Microfibril]]
[[Category: Microfibril]]
[[Category: Neonatal]]
[[Category: Neonatal]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:03:57 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 21:25:48 2008''

Revision as of 18:25, 2 July 2008

File:1lmj.png

Template:STRUCTURE 1lmj

NMR Study of the Fibrillin-1 cbEGF12-13 Pair of Ca2+ Binding Epidermal Growth Factor-like Domains

Template:ABSTRACT PUBMED 12511552

Disease

Known disease associated with this structure: Aortic aneurysm, ascending, and dissection OMIM:[134797], Ectopia lentis, familial OMIM:[134797], MASS syndrome OMIM:[134797], Marfan syndrome OMIM:[134797], Shprintzen-Goldberg syndrome OMIM:[134797], Weill-Marchesani syndrome, dominant OMIM:[134797]

About this Structure

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

Reference

Solution structure and dynamics of a calcium binding epidermal growth factor-like domain pair from the neonatal region of human fibrillin-1., Smallridge RS, Whiteman P, Werner JM, Campbell ID, Handford PA, Downing AK, J Biol Chem. 2003 Apr 4;278(14):12199-206. Epub 2003 Jan 2. PMID:12511552

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