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2lhn

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[[Image:2lhn.jpg|left|200px]]
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==RNA-binding zinc finger protein==
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<StructureSection load='2lhn' size='340' side='right' caption='[[2lhn]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
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== Structural highlights ==
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[[2lhn]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_s288c Saccharomyces cerevisiae s288c]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LHN OCA]. <br>
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<b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br>
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== Publication Abstract from PubMed ==
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Polyadenylation regulation and efficient nuclear export of mature mRNPs both require the polyadenosine-RNA-binding protein, Nab2, which contains seven CCCH Zn fingers. We describe here the solution structure of fingers 5-7, which are necessary and sufficient for high-affinity polyadenosine-RNA binding, and identify key residues involved. These Zn fingers form a single structural unit. Structural coherence is lost in the RNA-binding compromised Nab2-C437S mutant, which also suppresses the rat8-2 allele of RNA helicase Dbp5. Structure-guided Nab2 variants indicate that dbp5(rat8-2) suppression is more closely linked to hyperadenylation and suppression of mutant alleles of the nuclear RNA export adaptor, Yra1, than to affinity for polyadenosine-RNA. These results indicate that, in addition to modulating polyA tail length, Nab2 has an unanticipated function associated with generating export-competent mRNPs, and that changes within fingers 5-7 lead to suboptimal assembly of mRNP export complexes that are more easily disassembled by Dbp5 upon reaching the cytoplasm.
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{{STRUCTURE_2lhn| PDB=2lhn | SCENE= }}
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Structural Basis for Polyadenosine-RNA Binding by Nab2 Zn Fingers and Its Function in mRNA Nuclear Export.,Brockmann C, Soucek S, Kuhlmann SI, Mills-Lujan K, Kelly SM, Yang JC, Iglesias N, Stutz F, Corbett AH, Neuhaus D, Stewart M Structure. 2012 Jun 6;20(6):1007-18. Epub 2012 May 3. PMID:22560733<ref>PMID:22560733</ref>
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===RNA-binding zinc finger protein===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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== References ==
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{{ABSTRACT_PUBMED_22560733}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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[[2lhn]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_s288c Saccharomyces cerevisiae s288c]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LHN OCA].
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==Reference==
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<ref group="xtra">PMID:022560733</ref><references group="xtra"/>
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[[Category: Saccharomyces cerevisiae s288c]]
[[Category: Saccharomyces cerevisiae s288c]]
[[Category: Brockmann, C.]]
[[Category: Brockmann, C.]]

Revision as of 08:35, 30 April 2014

RNA-binding zinc finger protein

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