1nmu
From Proteopedia
(New page: 200px<br /><applet load="1nmu" size="450" color="white" frame="true" align="right" spinBox="true" caption="1nmu, resolution 2.31Å" /> '''MBP-L30'''<br /> ==...) |
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| - | [[Image:1nmu.gif|left|200px]]<br /><applet load="1nmu" size=" | + | [[Image:1nmu.gif|left|200px]]<br /><applet load="1nmu" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1nmu, resolution 2.31Å" /> | caption="1nmu, resolution 2.31Å" /> | ||
'''MBP-L30'''<br /> | '''MBP-L30'''<br /> | ||
==Overview== | ==Overview== | ||
| - | The Saccharomyces cerevisiae ribosomal protein L30 autoregulates its own | + | The Saccharomyces cerevisiae ribosomal protein L30 autoregulates its own expression by binding to a purine-rich internal loop in its pre-mRNA and mRNA. NMR studies of L30 and its RNA complex showed that both the internal loop of the RNA as well as a region of the protein become substantially more ordered upon binding. A crystal structure of a maltose binding protein (MBP)-L30 fusion protein with two copies in the asymmetric unit has been determined. The flexible RNA-binding region in the L30 copies has two distinct conformations, one resembles the RNA bound form solved by NMR and the other is unique. Structure prediction algorithms also had difficulty accurately predicting this region, which is consistent with conformational flexibility seen in the NMR and X-ray crystallography studies. Inherent conformational flexibility may be a hallmark of regions involved in intermolecular interactions. |
==About this Structure== | ==About this Structure== | ||
| - | 1NMU is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] with MTT as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http:// | + | 1NMU is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] with <scene name='pdbligand=MTT:'>MTT</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NMU OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
| - | [[Category: Chao, J | + | [[Category: Chao, J A.]] |
| - | [[Category: Prasad, G | + | [[Category: Prasad, G S.]] |
| - | [[Category: Stout, C | + | [[Category: Stout, C D.]] |
| - | [[Category: White, S | + | [[Category: White, S A.]] |
| - | [[Category: Williamson, J | + | [[Category: Williamson, J R.]] |
[[Category: MTT]] | [[Category: MTT]] | ||
[[Category: mbp-l30 fusion protein]] | [[Category: mbp-l30 fusion protein]] | ||
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[[Category: structural flexibility]] | [[Category: structural flexibility]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:07:48 2008'' |
Revision as of 12:07, 21 February 2008
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MBP-L30
Overview
The Saccharomyces cerevisiae ribosomal protein L30 autoregulates its own expression by binding to a purine-rich internal loop in its pre-mRNA and mRNA. NMR studies of L30 and its RNA complex showed that both the internal loop of the RNA as well as a region of the protein become substantially more ordered upon binding. A crystal structure of a maltose binding protein (MBP)-L30 fusion protein with two copies in the asymmetric unit has been determined. The flexible RNA-binding region in the L30 copies has two distinct conformations, one resembles the RNA bound form solved by NMR and the other is unique. Structure prediction algorithms also had difficulty accurately predicting this region, which is consistent with conformational flexibility seen in the NMR and X-ray crystallography studies. Inherent conformational flexibility may be a hallmark of regions involved in intermolecular interactions.
About this Structure
1NMU is a Protein complex structure of sequences from Escherichia coli and Saccharomyces cerevisiae with as ligand. Full crystallographic information is available from OCA.
Reference
Inherent protein structural flexibility at the RNA-binding interface of L30e., Chao JA, Prasad GS, White SA, Stout CD, Williamson JR, J Mol Biol. 2003 Feb 28;326(4):999-1004. PMID:12589748
Page seeded by OCA on Thu Feb 21 14:07:48 2008
