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1ra4

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{{STRUCTURE_1ra4| PDB=1ra4 | SCENE= }}
{{STRUCTURE_1ra4| PDB=1ra4 | SCENE= }}
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'''Crystal structure of the Methanococcus jannaschii L7Ae protein'''
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===Crystal structure of the Methanococcus jannaschii L7Ae protein===
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==Overview==
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Archaeal ribosomal protein L7Ae is a multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal, box H/ACA, and box C/D sRNAs. The crystal structure of Methanocaldococcus jannaschii L7Ae has been determined to 1.45 A, and L7Ae's amino acid composition, evolutionary conservation, functional characteristics, and structural details have been analyzed. Comparison of the L7Ae structure to those of a number of related proteins with diverse functions has revealed significant structural homology which suggests that this protein fold is an ancient RNA-binding motif. Notably, the free M. jannaschii L7Ae structure is essentially identical to that with RNA bound, suggesting that RNA binding occurs through an induced-fit interaction. Circular dichroism experiments show that box C/D and C'/D' RNA motifs undergo conformational changes when magnesium or the L7Ae protein is added, corroborating the induced-fit model for L7Ae-box C/D RNA interactions.
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{{ABSTRACT_PUBMED_16008351}}
==About this Structure==
==About this Structure==
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[[Category: Tran, E J.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:15:43 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 23:48:05 2008''

Revision as of 20:48, 27 July 2008

Image:1ra4.png

Template:STRUCTURE 1ra4

Crystal structure of the Methanococcus jannaschii L7Ae protein

Template:ABSTRACT PUBMED 16008351

About this Structure

1RA4 is a Single protein structure of sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.

Reference

The crystal structure of the Methanocaldococcus jannaschii multifunctional L7Ae RNA-binding protein reveals an induced-fit interaction with the box C/D RNAs., Suryadi J, Tran EJ, Maxwell ES, Brown BA 2nd, Biochemistry. 2005 Jul 19;44(28):9657-72. PMID:16008351

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