1dev: Difference between revisions
From Proteopedia
Jump to navigationJump to search
New page: left|200px<br /> <applet load="1dev" size="450" color="white" frame="true" align="right" spinBox="true" caption="1dev, resolution 2.2Å" /> '''CRYSTAL STRUCTURE OF... |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1dev.gif|left|200px]]<br /> | [[Image:1dev.gif|left|200px]]<br /><applet load="1dev" size="350" color="white" frame="true" align="right" spinBox="true" | ||
<applet load="1dev" size=" | |||
caption="1dev, resolution 2.2Å" /> | caption="1dev, resolution 2.2Å" /> | ||
'''CRYSTAL STRUCTURE OF SMAD2 MH2 DOMAIN BOUND TO THE SMAD-BINDING DOMAIN OF SARA'''<br /> | '''CRYSTAL STRUCTURE OF SMAD2 MH2 DOMAIN BOUND TO THE SMAD-BINDING DOMAIN OF SARA'''<br /> | ||
==Overview== | ==Overview== | ||
The Smad proteins mediate transforming growth factor-beta (TGFbeta) | The Smad proteins mediate transforming growth factor-beta (TGFbeta) signaling from the transmembrane serine-threonine receptor kinases to the nucleus. The Smad anchor for receptor activation (SARA) recruits Smad2 to the TGFbeta receptors for phosphorylation. The crystal structure of a Smad2 MH2 domain in complex with the Smad-binding domain (SBD) of SARA has been determined at 2.2 angstrom resolution. SARA SBD, in an extended conformation comprising a rigid coil, an alpha helix, and a beta strand, interacts with the beta sheet and the three-helix bundle of Smad2. Recognition between the SARA rigid coil and the Smad2 beta sheet is essential for specificity, whereas interactions between the SARA beta strand and the Smad2 three-helix bundle contribute significantly to binding affinity. Comparison of the structures between Smad2 and a comediator Smad suggests a model for how receptor-regulated Smads are recognized by the type I receptors. | ||
==Disease== | ==Disease== | ||
Known diseases associated with this structure: Anderson disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=607690 607690]], Chylomicron retention disease | Known diseases associated with this structure: Anderson disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=607690 607690]], Chylomicron retention disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=607690 607690]], Mowat-Wilson syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=605802 605802]] | ||
==About this Structure== | ==About this Structure== | ||
1DEV is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http:// | 1DEV is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences 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=1DEV OCA]. | ||
==Reference== | ==Reference== | ||
| Line 22: | Line 21: | ||
[[Category: three-helix bundle]] | [[Category: three-helix bundle]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:15:56 2008'' | ||