1yop
From Proteopedia
(New page: 200px<br /><applet load="1yop" size="450" color="white" frame="true" align="right" spinBox="true" caption="1yop" /> '''The solution structure of Kti11p'''<br /> =...) |
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| - | [[Image:1yop.gif|left|200px]]<br /><applet load="1yop" size=" | + | [[Image:1yop.gif|left|200px]]<br /><applet load="1yop" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1yop" /> | caption="1yop" /> | ||
'''The solution structure of Kti11p'''<br /> | '''The solution structure of Kti11p'''<br /> | ||
==Overview== | ==Overview== | ||
| - | Kti11p is a small, highly conserved CSL zinc finger-containing protein | + | Kti11p is a small, highly conserved CSL zinc finger-containing protein found in many eukaryotes. It was first identified as one of the factors required for maintaining the sensitivity of Saccharomyces cerevisiae to Kluyveromyces lactis zymocin. Then, it was found to be identical to Dph3, a protein required for diphthamide biosynthesis on eEF-2, the target of diphtheria toxin and Pseudomonas exotoxin A, in both yeast and higher eukaryotes. Furthermore, Kti11p/Dph3 was found to physically interact with core-Elongator, ribosomal proteins, eEF-2, two other proteins required for diphthamide modification on eEF-2, and DelGEF. Here, we determined the solution structure of Kti11p using NMR, providing the first structure of the CSL-class zinc-binding protein family. We present the first experimental evidence that Kti11p can bind a single Zn(2+) ion by its four conserved cysteine residues. The major structure of Kti11p comprises a beta sandwich as well as an alpha helix. Moreover, a structure-based similarity search suggests that it represents a novel structure and may define a new family of the zinc ribbon fold group. Therefore, our work provides a molecular basis for further understanding the multiple functions of Kti11p/Dph3 in different biological processes. |
==About this Structure== | ==About this Structure== | ||
| - | 1YOP is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] with ZN as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http:// | + | 1YOP is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] with <scene name='pdbligand=ZN:'>ZN</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YOP OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Zhang, J.]] | [[Category: Zhang, J.]] | ||
[[Category: Zhao, W.]] | [[Category: Zhao, W.]] | ||
| - | [[Category: Zhou, C | + | [[Category: Zhou, C Z.]] |
[[Category: ZN]] | [[Category: ZN]] | ||
[[Category: zinc finger]] | [[Category: zinc finger]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:07:30 2008'' |
Revision as of 14:07, 21 February 2008
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The solution structure of Kti11p
Overview
Kti11p is a small, highly conserved CSL zinc finger-containing protein found in many eukaryotes. It was first identified as one of the factors required for maintaining the sensitivity of Saccharomyces cerevisiae to Kluyveromyces lactis zymocin. Then, it was found to be identical to Dph3, a protein required for diphthamide biosynthesis on eEF-2, the target of diphtheria toxin and Pseudomonas exotoxin A, in both yeast and higher eukaryotes. Furthermore, Kti11p/Dph3 was found to physically interact with core-Elongator, ribosomal proteins, eEF-2, two other proteins required for diphthamide modification on eEF-2, and DelGEF. Here, we determined the solution structure of Kti11p using NMR, providing the first structure of the CSL-class zinc-binding protein family. We present the first experimental evidence that Kti11p can bind a single Zn(2+) ion by its four conserved cysteine residues. The major structure of Kti11p comprises a beta sandwich as well as an alpha helix. Moreover, a structure-based similarity search suggests that it represents a novel structure and may define a new family of the zinc ribbon fold group. Therefore, our work provides a molecular basis for further understanding the multiple functions of Kti11p/Dph3 in different biological processes.
About this Structure
1YOP is a Single protein structure of sequence from Saccharomyces cerevisiae with as ligand. Full crystallographic information is available from OCA.
Reference
Solution structure of Kti11p from Saccharomyces cerevisiae reveals a novel zinc-binding module., Sun J, Zhang J, Wu F, Xu C, Li S, Zhao W, Wu Z, Wu J, Zhou CZ, Shi Y, Biochemistry. 2005 Jun 21;44(24):8801-9. PMID:15952786
Page seeded by OCA on Thu Feb 21 16:07:30 2008
Categories: Saccharomyces cerevisiae | Single protein | Li, S. | Shi, Y. | Sun, J. | Wu, F. | Wu, J. | Wu, Z. | Xu, C. | Zhang, J. | Zhao, W. | Zhou, C Z. | ZN | Zinc finger
