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[[Image:1ou9.png|left|200px]]
==Structure of SspB, a AAA+ protease delivery protein==
<StructureSection load='1ou9' size='340' side='right' caption='[[1ou9]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
[[1ou9]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacterium_influenzae"_lehmann_and_neumann_1896 "bacterium influenzae" lehmann and neumann 1896]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OU9 OCA]. <br>
<b>Related:</b> [[1ou8|1ou8]], [[1oul|1oul]]<br>
<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>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ou/1ou9_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
== Publication Abstract from PubMed ==
Substrate selection by AAA+ ATPases that function to unfold proteins or alter protein conformation is often regulated by delivery or adaptor proteins. SspB is a protein dimer that binds to the ssrA degradation tag and delivers proteins bearing this tag to ClpXP, an AAA+ protease, for degradation. Here, we describe the structure of the peptide binding domain of H. influenzae SspB in complex with an ssrA peptide at 1.6 A resolution. The ssrA peptides are bound in well-defined clefts located at the extreme ends of the SspB homodimer. SspB contacts residues within the N-terminal and central regions of the 11 residue ssrA tag but leaves the C-terminal residues exposed and positioned to dock with ClpX. This structure, taken together with biochemical analysis of SspB, suggests mechanisms by which proteins like SspB escort substrates to AAA+ ATPases and enhance the specificity and affinity of target recognition.


{{STRUCTURE_1ou9|  PDB=1ou9  |  SCENE=  }}
Structure of a delivery protein for an AAA+ protease in complex with a peptide degradation tag.,Levchenko I, Grant RA, Wah DA, Sauer RT, Baker TA Mol Cell. 2003 Aug;12(2):365-72. PMID:14536076<ref>PMID:14536076</ref>


===Structure of SspB, a AAA+ protease delivery protein===
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
 
== References ==
{{ABSTRACT_PUBMED_14536076}}
<references/>
 
__TOC__
==About this Structure==
</StructureSection>
[[1ou9]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OU9 OCA].  
[[Category: Bacterium influenzae lehmann and neumann 1896]]
 
==Reference==
<ref group="xtra">PMID:014536076</ref><references group="xtra"/>
[[Category: Haemophilus influenzae]]
[[Category: Baker, T A.]]
[[Category: Baker, T A.]]
[[Category: Grant, R A.]]
[[Category: Grant, R A.]]
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