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1upl

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[[Image:1upl.jpg|left|200px]]<br /><applet load="1upl" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1upl.jpg|left|200px]]
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caption="1upl, resolution 2.60&Aring;" />
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'''CRYSTAL STRUCTURE OF MO25 ALPHA'''<br />
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{{Structure
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|PDB= 1upl |SIZE=350|CAPTION= <scene name='initialview01'>1upl</scene>, resolution 2.60&Aring;
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|SITE=
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|LIGAND=
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|ACTIVITY=
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}}
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'''CRYSTAL STRUCTURE OF MO25 ALPHA'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1UPL 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=1UPL OCA].
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1UPL 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=1UPL OCA].
==Reference==
==Reference==
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Crystal structure of MO25 alpha in complex with the C terminus of the pseudo kinase STE20-related adaptor., Milburn CC, Boudeau J, Deak M, Alessi DR, van Aalten DM, Nat Struct Mol Biol. 2004 Feb;11(2):193-200. Epub 2004 Jan 18. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=14730349 14730349]
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Crystal structure of MO25 alpha in complex with the C terminus of the pseudo kinase STE20-related adaptor., Milburn CC, Boudeau J, Deak M, Alessi DR, van Aalten DM, Nat Struct Mol Biol. 2004 Feb;11(2):193-200. Epub 2004 Jan 18. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14730349 14730349]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: strad]]
[[Category: strad]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:27:06 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:35:14 2008''

Revision as of 12:35, 20 March 2008


PDB ID 1upl

Drag the structure with the mouse to rotate
, resolution 2.60Å
Coordinates: save as pdb, mmCIF, xml



CRYSTAL STRUCTURE OF MO25 ALPHA


Overview

Mouse protein 25 alpha (MO25 alpha) is a 40-kDa protein that, together with the STE20-related adaptor-alpha (STRAD alpha) pseudo kinase, forms a regulatory complex capable of stimulating the activity of the LKB1 tumor suppressor protein kinase. The latter is mutated in the inherited Peutz-Jeghers cancer syndrome (PJS). MO25 alpha binds directly to a conserved Trp-Glu-Phe sequence at the STRAD alpha C terminus, markedly enhancing binding of STRAD alpha to LKB1 and increasing LKB1 catalytic activity. The MO25 alpha crystal structure reveals a helical repeat fold, distantly related to the Armadillo proteins. A complex with the STRAD alpha peptide reveals a hydrophobic pocket that is involved in a unique and specific interaction with the Trp-Glu-Phe motif, further supported by mutagenesis studies. The data represent a first step toward structural analysis of the LKB1-STRAD-MO25 complex, and suggests that MO25 alpha is a scaffold protein to which other regions of STRAD-LKB1, cellular LKB1 substrates or regulatory components could bind.

About this Structure

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

Reference

Crystal structure of MO25 alpha in complex with the C terminus of the pseudo kinase STE20-related adaptor., Milburn CC, Boudeau J, Deak M, Alessi DR, van Aalten DM, Nat Struct Mol Biol. 2004 Feb;11(2):193-200. Epub 2004 Jan 18. PMID:14730349

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