3brg: Difference between revisions
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New page: left|200px {{Structure |PDB= 3brg |SIZE=350|CAPTION= <scene name='initialview01'>3brg</scene>, resolution 2.20Å |SITE= <scene name='pdbsite=AC1:Edo+Binding+Site+... |
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[[Image:3brg.jpg|left|200px]] | [[Image:3brg.jpg|left|200px]] | ||
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{{STRUCTURE_3brg| PDB=3brg | SCENE= }} | |||
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'''CSL (RBP-Jk) bound to DNA''' | '''CSL (RBP-Jk) bound to DNA''' | ||
==Overview== | |||
The Notch pathway is a conserved cell-to-cell signaling mechanism, in which extracellular signals are transduced into transcriptional outputs through the nuclear effector CSL. CSL is converted from a repressor to an activator through the formation of the CSL-NotchIC-Mastermind ternary complex. The RAM domain of NotchIC avidly interacts with CSL; however, its role in assembly of the CSL-NotchIC-Mastermind ternary complex is not understood. Here we provide a comprehensive thermodynamic, structural, and biochemical analysis of the RAM-CSL interaction for components from both mouse and worm. Our binding data shows that RAM and CSL form a high affinity complex in the presence or absence of DNA. Our structural studies reveal a striking distal conformational change in CSL upon RAM binding, which creates a docking site for Mastermind to bind to the complex. Finally, we show that the addition of a RAM peptide in trans facilitates formation of the CSL-NotchIC-Mastermind ternary complex in vitro. | |||
==About this Structure== | ==About this Structure== | ||
3BRG is a [[Protein complex]] structure of sequences 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=3BRG OCA]. | 3BRG is a [[Protein complex]] structure of sequences 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=3BRG OCA]. | ||
==Reference== | |||
RAM induced allostery facilitates assembly of a notch pathway active transcription complex., Friedmann DR, Wilson JJ, Kovall RA, J Biol Chem. 2008 Apr 1;. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/18381292 18381292] | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Friedmann, D R.]] | [[Category: Friedmann, D R.]] | ||
[[Category: Kovall, R A.]] | [[Category: Kovall, R A.]] | ||
[[Category: | [[Category: Activator]] | ||
[[Category: | [[Category: Alternative splicing]] | ||
[[Category: | [[Category: Dna binding protein/dna complex]] | ||
[[Category: | [[Category: Dna-binding]] | ||
[[Category: | [[Category: Notch]] | ||
[[Category: | [[Category: Notch signaling pathway]] | ||
[[Category: | [[Category: Nucleus]] | ||
[[Category: | [[Category: Protein-dna complex]] | ||
[[Category: | [[Category: Repressor]] | ||
[[Category: | [[Category: Signaling]] | ||
[[Category: | [[Category: Transcription]] | ||
[[Category: | [[Category: Transcription regulation]] | ||
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