1pry
From Proteopedia
(New page: 200px<br /><applet load="1pry" size="450" color="white" frame="true" align="right" spinBox="true" caption="1pry, resolution 1.97Å" /> '''Structure Determinat...) |
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| - | [[Image:1pry.jpg|left|200px]]<br /><applet load="1pry" size=" | + | [[Image:1pry.jpg|left|200px]]<br /><applet load="1pry" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1pry, resolution 1.97Å" /> | caption="1pry, resolution 1.97Å" /> | ||
'''Structure Determination of Fibrillarin Homologue From Hyperthermophilic Archaeon Pyrococcus furiosus (Pfu-65527)'''<br /> | '''Structure Determination of Fibrillarin Homologue From Hyperthermophilic Archaeon Pyrococcus furiosus (Pfu-65527)'''<br /> | ||
==Overview== | ==Overview== | ||
| - | The methyltransferase fibrillarin is the catalytic component of | + | The methyltransferase fibrillarin is the catalytic component of ribonucleoprotein complexes that direct site-specific methylation of precursor ribosomal RNA and are critical for ribosome biogenesis in eukaryotes and archaea. Here we report the crystal structure of a fibrillarin ortholog from the hyperthermophilic archaeon Pyrococcus furiosus at 1.97A resolution. Comparisons of the X-ray structures of fibrillarin orthologs from Methanococcus jannashii and Archaeoglobus fulgidus reveal nearly identical backbone configurations for the catalytic C-terminal domain with the exception of a unique loop conformation at the S-adenosyl-l-methionine (AdoMet) binding pocket in P. furiosus. In contrast, the N-terminal domains are divergent which may explain why some forms of fibrillarin apparently homodimerize (M. jannashii) while others are monomeric (P. furiosus and A. fulgidus). Three positively charged amino acids surround the AdoMet-binding site and sequence analysis indicates that this is a conserved feature of both eukaryotic and archaeal fibrillarins. We discuss the possibility that these basic residues of fibrillarin are important for RNA-guided rRNA methylation. |
==About this Structure== | ==About this Structure== | ||
| - | 1PRY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http:// | + | 1PRY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PRY OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Deng, L.]] | [[Category: Deng, L.]] | ||
| - | [[Category: Liu, Z | + | [[Category: Liu, Z J.]] |
| - | [[Category: Rose, J | + | [[Category: Rose, J P.]] |
| - | [[Category: SECSG, Southeast | + | [[Category: SECSG, Southeast Collaboratory for Structural Genomics.]] |
| - | [[Category: Starostina, N | + | [[Category: Starostina, N G.]] |
| - | [[Category: Terns, M | + | [[Category: Terns, M P.]] |
| - | [[Category: Terns, R | + | [[Category: Terns, R M.]] |
| - | [[Category: Wang, B | + | [[Category: Wang, B C.]] |
[[Category: fibrillarin]] | [[Category: fibrillarin]] | ||
[[Category: methylation]] | [[Category: methylation]] | ||
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[[Category: structural genomics]] | [[Category: structural genomics]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:31:58 2008'' |
Revision as of 12:31, 21 February 2008
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Structure Determination of Fibrillarin Homologue From Hyperthermophilic Archaeon Pyrococcus furiosus (Pfu-65527)
Overview
The methyltransferase fibrillarin is the catalytic component of ribonucleoprotein complexes that direct site-specific methylation of precursor ribosomal RNA and are critical for ribosome biogenesis in eukaryotes and archaea. Here we report the crystal structure of a fibrillarin ortholog from the hyperthermophilic archaeon Pyrococcus furiosus at 1.97A resolution. Comparisons of the X-ray structures of fibrillarin orthologs from Methanococcus jannashii and Archaeoglobus fulgidus reveal nearly identical backbone configurations for the catalytic C-terminal domain with the exception of a unique loop conformation at the S-adenosyl-l-methionine (AdoMet) binding pocket in P. furiosus. In contrast, the N-terminal domains are divergent which may explain why some forms of fibrillarin apparently homodimerize (M. jannashii) while others are monomeric (P. furiosus and A. fulgidus). Three positively charged amino acids surround the AdoMet-binding site and sequence analysis indicates that this is a conserved feature of both eukaryotic and archaeal fibrillarins. We discuss the possibility that these basic residues of fibrillarin are important for RNA-guided rRNA methylation.
About this Structure
1PRY is a Single protein structure of sequence from Pyrococcus furiosus. Full crystallographic information is available from OCA.
Reference
Structure determination of fibrillarin from the hyperthermophilic archaeon Pyrococcus furiosus., Deng L, Starostina NG, Liu ZJ, Rose JP, Terns RM, Terns MP, Wang BC, Biochem Biophys Res Commun. 2004 Mar 12;315(3):726-32. PMID:14975761
Page seeded by OCA on Thu Feb 21 14:31:58 2008
Categories: Pyrococcus furiosus | Single protein | Deng, L. | Liu, Z J. | Rose, J P. | SECSG, Southeast Collaboratory for Structural Genomics. | Starostina, N G. | Terns, M P. | Terns, R M. | Wang, B C. | Fibrillarin | Methylation | Pfu-65527 | Protein structure initiative | Psi | Ribosomal rna processing | Secsg | Snornp | Southeast collaboratory for structural genomics | Structural genomics
