1rlf

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{{STRUCTURE_1rlf| PDB=1rlf | SCENE= }}
{{STRUCTURE_1rlf| PDB=1rlf | SCENE= }}
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'''STRUCTURE DETERMINATION OF THE RAS-BINDING DOMAIN OF THE RAL-SPECIFIC GUANINE NUCLEOTIDE EXCHANGE FACTOR RLF, NMR, 10 STRUCTURES'''
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===STRUCTURE DETERMINATION OF THE RAS-BINDING DOMAIN OF THE RAL-SPECIFIC GUANINE NUCLEOTIDE EXCHANGE FACTOR RLF, NMR, 10 STRUCTURES===
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==Overview==
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Ral-specific guanine nucleotide exchange factors RalGDS, Rgl, and Rlf have been suggested to function as intermediates between Ras and Ral pathways by being able to bind Ras proteins through their C-terminal Ras-binding domains (RBD). The RBDs of RalGDS and of the Ser/Thr kinase c-Raf-1 have been shown to have the same tertiary structure. In contrast to the RBDs of Raf and RalGDS, which bind either Ras or Rap with high affinity, Rlf-RBD has a similar affinity for both GTP-binding proteins. To be able to compare these RBDs on a structural level, we have solved the three-dimensional structure of Rlf-RBD by NMR spectroscopy. The overall tertiary structure of Rlf-RBD shows the betabetaalphabetabetaalphabeta-fold of the ubiquitin superfamily and is very similar to that of RalGDS-RBD. The binding interface of Rlf-RBD to Ras was mapped using chemical shift analysis and indicated a binding mode similar to that in the case of Rap.Raf-RBD. However, comparison of the putatively interacting regions revealed structural differences which are proposed to be responsible for the different substrate affinities of Rlf-, RalGDS-, and Raf-RBD.
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{{ABSTRACT_PUBMED_9753431}}
==About this Structure==
==About this Structure==
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1RLF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RLF OCA].
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1RLF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RLF OCA].
==Reference==
==Reference==
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[[Category: Wolthuis, R M.F.]]
[[Category: Wolthuis, R M.F.]]
[[Category: Signal transduction protein]]
[[Category: Signal transduction protein]]
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Revision as of 13:09, 29 July 2008

Image:1rlf.png

Template:STRUCTURE 1rlf

STRUCTURE DETERMINATION OF THE RAS-BINDING DOMAIN OF THE RAL-SPECIFIC GUANINE NUCLEOTIDE EXCHANGE FACTOR RLF, NMR, 10 STRUCTURES

Template:ABSTRACT PUBMED 9753431

About this Structure

1RLF is a Single protein structure of sequence from Mus musculus. Full experimental information is available from OCA.

Reference

Structure determination of the Ras-binding domain of the Ral-specific guanine nucleotide exchange factor Rlf., Esser D, Bauer B, Wolthuis RM, Wittinghofer A, Cool RH, Bayer P, Biochemistry. 1998 Sep 29;37(39):13453-62. PMID:9753431

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