1sds: Difference between revisions
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[[Image:1sds.gif|left|200px]] | [[Image:1sds.gif|left|200px]] | ||
'''Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA''' | {{Structure | ||
|PDB= 1sds |SIZE=350|CAPTION= <scene name='initialview01'>1sds</scene>, resolution 1.80Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=K:POTASSIUM ION'>K</scene> | |||
|ACTIVITY= | |||
|GENE= RPL7AE, MJ1203 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 Methanocaldococcus jannaschii]) | |||
}} | |||
'''Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1SDS is a [ | 1SDS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SDS OCA]. | ||
==Reference== | ==Reference== | ||
Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA at 1.8 A resolution., Hamma T, Ferre-D'Amare AR, Structure. 2004 May;12(5):893-903. PMID:[http:// | Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA at 1.8 A resolution., Hamma T, Ferre-D'Amare AR, Structure. 2004 May;12(5):893-903. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15130481 15130481] | ||
[[Category: Methanocaldococcus jannaschii]] | [[Category: Methanocaldococcus jannaschii]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: protein-rna complex]] | [[Category: protein-rna complex]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:03:36 2008'' | ||
Revision as of 15:03, 20 March 2008
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| , resolution 1.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | RPL7AE, MJ1203 (Methanocaldococcus jannaschii) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA
OverviewOverview
The archaeal RNA binding protein L7Ae and its eukaryotic homolog 15.5 kDa/Snu13 recognize K-turns. This structural motif is canonically comprised of two stems (one with tandem A.G base pairs, the other with Watson-Crick pairs) linked by an asymmetric internal loop. L7Ae recognizes conventional K-turns in ribosomal and box C/D RNAs but also binds specifically to some box H/ACA RNAs at terminal stem loops. These have the A.G paired stem, but lack the Watson-Crick stem. The structure of Methanococcus jannaschii L7Ae bound to a symmetric duplex RNA without Watson-Crick stems demonstrates how a binding site for this component of diverse ribonucleoprotein complexes can be constructed with only the A.G stem and the loop. The RNA adopts a functional conformation with the aid of a base triple and tight binding of divalent cations. Comparison with the 15.5 kDa/Snu13-RNA complex structure suggests why the eukaryotic homolog does not recognize terminal stem loop L7Ae binding sites.
About this StructureAbout this Structure
1SDS is a Single protein structure of sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.
ReferenceReference
Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA at 1.8 A resolution., Hamma T, Ferre-D'Amare AR, Structure. 2004 May;12(5):893-903. PMID:15130481
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