2cxc

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[[Image:2cxc.gif|left|200px]]<br /><applet load="2cxc" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:2cxc.gif|left|200px]]
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caption="2cxc, resolution 2.00&Aring;" />
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'''Crystal structure of archaeal transcription termination factor NusA'''<br />
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{{Structure
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|PDB= 2cxc |SIZE=350|CAPTION= <scene name='initialview01'>2cxc</scene>, resolution 2.00&Aring;
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|SITE=
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|LIGAND=
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|ACTIVITY=
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'''Crystal structure of archaeal transcription termination factor NusA'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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2CXC is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CXC OCA].
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2CXC is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CXC OCA].
==Reference==
==Reference==
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Crystal structure and RNA-binding analysis of the archaeal transcription factor NusA., Shibata R, Bessho Y, Shinkai A, Nishimoto M, Fusatomi E, Terada T, Shirouzu M, Yokoyama S, Biochem Biophys Res Commun. 2007 Mar 30;355(1):122-8. Epub 2007 Jan 31. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17288993 17288993]
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Crystal structure and RNA-binding analysis of the archaeal transcription factor NusA., Shibata R, Bessho Y, Shinkai A, Nishimoto M, Fusatomi E, Terada T, Shirouzu M, Yokoyama S, Biochem Biophys Res Commun. 2007 Mar 30;355(1):122-8. Epub 2007 Jan 31. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17288993 17288993]
[[Category: Aeropyrum pernix]]
[[Category: Aeropyrum pernix]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: archaeal nusa]]
[[Category: archaeal nusa]]
[[Category: kh domain]]
[[Category: kh domain]]
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[[Category: national project on protein structural and functional analyses]]
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[[Category: national project on protein structural and functional analyse]]
[[Category: nppsfa]]
[[Category: nppsfa]]
[[Category: riken structural genomics/proteomics initiative]]
[[Category: riken structural genomics/proteomics initiative]]
[[Category: rna binding protein]]
[[Category: rna binding protein]]
[[Category: rsgi]]
[[Category: rsgi]]
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[[Category: structural genomics]]
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[[Category: structural genomic]]
[[Category: transcription termination]]
[[Category: transcription termination]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:53:20 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:20:52 2008''

Revision as of 14:20, 20 March 2008


PDB ID 2cxc

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, resolution 2.00Å
Coordinates: save as pdb, mmCIF, xml



Crystal structure of archaeal transcription termination factor NusA


Overview

The transcription factor NusA functions in transcriptional regulation involving termination in bacteria. A NusA homolog consisting of only the two KH domains is widely conserved in archaea, but its function remains unknown. We have found that Aeropyrum pernix NusA strongly binds to a certain CU-rich sequence near a termination signal. Our crystal structure of A. pernix NusA revealed that its spatial arrangement is quite similar to that of the KH domains of bacterial NusA. Thus, we consider archaeal NusA to have retained some functions of bacterial NusA, including the ssRNA-binding ability. Remarkable structural differences between archaeal and bacterial NusA exist at the interface with RNAP, in connection with the different NusA-binding sites around the termination signals. Transcriptional termination in archaea could differ from all of the known bacterial and eukaryal mechanisms, in terms of the combination of a bacterial factor and a eukaryal-type RNAP.

About this Structure

2CXC is a Single protein structure of sequence from Aeropyrum pernix. Full crystallographic information is available from OCA.

Reference

Crystal structure and RNA-binding analysis of the archaeal transcription factor NusA., Shibata R, Bessho Y, Shinkai A, Nishimoto M, Fusatomi E, Terada T, Shirouzu M, Yokoyama S, Biochem Biophys Res Commun. 2007 Mar 30;355(1):122-8. Epub 2007 Jan 31. PMID:17288993

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