1rlg: Difference between revisions
New page: left|200px<br /><applet load="1rlg" size="450" color="white" frame="true" align="right" spinBox="true" caption="1rlg, resolution 2.7Å" /> '''Molecular basis of Bo... |
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[[Image:1rlg.gif|left|200px]]<br /><applet load="1rlg" size=" | [[Image:1rlg.gif|left|200px]]<br /><applet load="1rlg" size="350" color="white" frame="true" align="right" spinBox="true" | ||
caption="1rlg, resolution 2.7Å" /> | caption="1rlg, resolution 2.7Å" /> | ||
'''Molecular basis of Box C/D RNA-protein interaction: co-crystal structure of the Archaeal sRNP intiation complex'''<br /> | '''Molecular basis of Box C/D RNA-protein interaction: co-crystal structure of the Archaeal sRNP intiation complex'''<br /> | ||
==Overview== | ==Overview== | ||
We have determined and refined a crystal structure of the initial assembly | We have determined and refined a crystal structure of the initial assembly complex of archaeal box C/D sRNPs comprising the Archaeoglobus fulgidus (AF) L7Ae protein and a box C/D RNA. The box C/D RNA forms a classical kink-turn (K-turn) structure and the resulting protein-RNA complex serves as a distinct platform for recruitment of the fibrillarin-Nop5p complex. The cocrystal structure confirms previously proposed secondary structure of the box C/D RNA that includes a protruded U, a UU mismatch, and two sheared tandem GA base pairs. Detailed structural comparisons of the AF L7Ae-box C/D RNA complex with previously determined crystal structures of L7Ae homologs in complex with functionally distinct K-turn RNAs revealed a set of remarkably conserved principles in protein-RNA interactions. These analyses provide a structural basis for interpreting the functional roles of the box C/D sequences in directing specific assembly of box C/D sRNPs. | ||
==About this Structure== | ==About this Structure== | ||
1RLG is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http:// | 1RLG is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RLG OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Archaeoglobus fulgidus]] | [[Category: Archaeoglobus fulgidus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Fenley, M | [[Category: Fenley, M O.]] | ||
[[Category: Li, H.]] | [[Category: Li, H.]] | ||
[[Category: Moore, T.]] | [[Category: Moore, T.]] | ||
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[[Category: protein-rna]] | [[Category: protein-rna]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:52:10 2008'' | ||
