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[[Image:2hjv.gif|left|200px]]
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{{STRUCTURE_2hjv|  PDB=2hjv  |  SCENE=  }}
'''Structure of the second domain (residues 207-368) of the Bacillus subtilis YxiN protein'''


==Structure of the second domain (residues 207-368) of the Bacillus subtilis YxiN protein==
<StructureSection load='2hjv' size='340' side='right'caption='[[2hjv]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2hjv]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HJV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HJV FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2hjv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hjv OCA], [https://pdbe.org/2hjv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hjv RCSB], [https://www.ebi.ac.uk/pdbsum/2hjv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hjv ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DBPA_BACSU DBPA_BACSU] DEAD-box RNA helicase involved in the assembly of the 50S ribosomal subunit. Has an RNA-dependent ATPase activity, which is specific for 23S rRNA, and a 3' to 5' RNA helicase activity that uses the energy of ATP hydrolysis to destabilize and unwind short rRNA duplexes (Probable).<ref>PMID:10481020</ref> <ref>PMID:19474341</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hj/2hjv_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2hjv ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The Bacillus subtilis RNA helicase YxiN is a modular three-domain protein. The first two domains form a conserved helicase core that couples an ATPase activity to an RNA duplex-destabilization activity, while the third domain recognizes a stem-loop of 23S ribosomal RNA with high affinity and specificity. The structure of the second domain, amino-acid residues 207-368, has been solved to 1.95 A resolution, revealing a parallel alphabeta-fold. The crystallographic asymmetric unit contains two protomers; superposition shows that they differ substantially in two segments of peptide that overlap the conserved helicase sequence motifs V and VI, while the remainder of the domain is isostructural. The conformational variability of these segments suggests that induced fit is intrinsic to the recognition of ligands (ATP and RNA) and the coupling of the ATPase activity to conformational changes.


==Overview==
Structure of the second domain of the Bacillus subtilis DEAD-box RNA helicase YxiN.,Caruthers JM, Hu Y, McKay DB Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Dec 1;62(Pt, 12):1191-5. Epub 2006 Nov 30. PMID:17142894<ref>PMID:17142894</ref>
The Bacillus subtilis RNA helicase YxiN is a modular three-domain protein. The first two domains form a conserved helicase core that couples an ATPase activity to an RNA duplex-destabilization activity, while the third domain recognizes a stem-loop of 23S ribosomal RNA with high affinity and specificity. The structure of the second domain, amino-acid residues 207-368, has been solved to 1.95 A resolution, revealing a parallel alphabeta-fold. The crystallographic asymmetric unit contains two protomers; superposition shows that they differ substantially in two segments of peptide that overlap the conserved helicase sequence motifs V and VI, while the remainder of the domain is isostructural. The conformational variability of these segments suggests that induced fit is intrinsic to the recognition of ligands (ATP and RNA) and the coupling of the ATPase activity to conformational changes.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2HJV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HJV OCA].
</div>
<div class="pdbe-citations 2hjv" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Structure of the second domain of the Bacillus subtilis DEAD-box RNA helicase YxiN., Caruthers JM, Hu Y, McKay DB, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Dec 1;62(Pt, 12):1191-5. Epub 2006 Nov 30. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17142894 17142894]
*[[Helicase 3D structures|Helicase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus subtilis]]
[[Category: Bacillus subtilis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Caruthers, J M.]]
[[Category: Caruthers JM]]
[[Category: McKay, D B.]]
[[Category: McKay DB]]
[[Category: Parallel alpha-beta]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 06:22:44 2008''

Latest revision as of 09:58, 30 August 2023

Structure of the second domain (residues 207-368) of the Bacillus subtilis YxiN protein

2hjv, resolution 1.95Å

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