This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
2nn6
From Proteopedia
| Line 1: | Line 1: | ||
[[Image:2nn6.jpg|left|200px]] | [[Image:2nn6.jpg|left|200px]] | ||
| - | + | <!-- | |
| - | + | The line below this paragraph, containing "STRUCTURE_2nn6", creates the "Structure Box" on the page. | |
| - | + | You may change the PDB parameter (which sets the PDB file loaded into the applet) | |
| - | + | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |
| - | + | or leave the SCENE parameter empty for the default display. | |
| - | + | --> | |
| - | + | {{STRUCTURE_2nn6| PDB=2nn6 | SCENE= }} | |
| - | | | + | |
| - | | | + | |
| - | }} | + | |
'''Structure of the human RNA exosome composed of Rrp41, Rrp45, Rrp46, Rrp43, Mtr3, Rrp42, Csl4, Rrp4, and Rrp40''' | '''Structure of the human RNA exosome composed of Rrp41, Rrp45, Rrp46, Rrp43, Mtr3, Rrp42, Csl4, Rrp4, and Rrp40''' | ||
| Line 27: | Line 24: | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Lima, C D.]] | [[Category: Lima, C D.]] | ||
| - | [[Category: | + | [[Category: Exoribonuclease]] |
| - | [[Category: | + | [[Category: Exosome]] |
| - | [[Category: | + | [[Category: Phosphorolytic]] |
| - | [[Category: | + | [[Category: Pm/scl]] |
| - | [[Category: | + | [[Category: Ribonuclease]] |
| - | [[Category: | + | [[Category: Rna]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 09:39:32 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 06:39, 4 May 2008
Structure of the human RNA exosome composed of Rrp41, Rrp45, Rrp46, Rrp43, Mtr3, Rrp42, Csl4, Rrp4, and Rrp40
Overview
The RNA exosome is a multisubunit 3' to 5' exoribonuclease complex that participates in degradation and processing of cellular RNA. To determine the activities and structure of the eukaryotic exosome, we report the reconstitution of 9-subunit exosomes from yeast and human and reconstitution of 10- and 11-subunit exosomes from yeast. Comparative biochemical analysis between purified subunits and reconstituted exosomes using AU-rich, polyadenylated (poly[A]), generic, and structured RNA substrates reveals processive phosphorolytic activities for human Rrp41/Rrp45 and the 9-subunit human exosome, processive hydrolytic activities for yeast Rrp44 and the yeast 10-subunit exosome, distributive hydrolytic activities for Rrp6, and processive and distributive hydrolytic activities for the yeast 11-subunit exosome. To elucidate the architecture of a eukaryotic exosome, its conserved surfaces, and the structural basis for RNA decay, we report the X-ray structure determination for the 286 kDa nine-subunit human exosome at 3.35 A.
About this Structure
2NN6 is a Protein complex structure of sequences from Homo sapiens. The following page contains interesting information on the relation of 2NN6 with [Exosomes]. Full crystallographic information is available from OCA.
Reference
Reconstitution, activities, and structure of the eukaryotic RNA exosome., Liu Q, Greimann JC, Lima CD, Cell. 2006 Dec 15;127(6):1223-37. PMID:17174896 Page seeded by OCA on Sun May 4 09:39:32 2008
Categories: Exosomes | Homo sapiens | Protein complex | Lima, C D. | Exoribonuclease | Exosome | Phosphorolytic | Pm/scl | Ribonuclease | Rna
