1qzm

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[[Image:1qzm.gif|left|200px]]<br /><applet load="1qzm" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1qzm, resolution 1.90&Aring;" />
 
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'''alpha-domain of ATPase'''<br />
 
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==Overview==
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==alpha-domain of ATPase==
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The crystal structure of the small, mostly helical alpha domain of the, AAA+ module of the Escherichia coli ATP-dependent protease Lon has been, solved by single isomorphous replacement combined with anomalous, scattering and refined at 1.9A resolution to a crystallographic R factor, of 17.9%. This domain, comprising residues 491-584, was obtained by, chymotrypsin digestion of the recombinant full-length protease. The alpha, domain of Lon contains four alpha helices and two parallel strands and, resembles similar domains found in a variety of ATPases and helicases, including the oligomeric proteases HslVU and ClpAP. The highly conserved, "sensor-2" Arg residue is located at the beginning of the third helix., Detailed comparison with the structures of 11 similar domains established, the putative location of the nucleotide-binding site in this first, fragment of Lon for which a crystal structure has become available.
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<StructureSection load='1qzm' size='340' side='right'caption='[[1qzm]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1qzm]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QZM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QZM FirstGlance]. <br>
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1QZM is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Active as [http://en.wikipedia.org/wiki/Endopeptidase_La Endopeptidase La], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.53 3.4.21.53] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QZM OCA].
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qzm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qzm OCA], [https://pdbe.org/1qzm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qzm RCSB], [https://www.ebi.ac.uk/pdbsum/1qzm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qzm ProSAT]</span></td></tr>
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==Reference==
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</table>
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Crystal structure of the AAA+ alpha domain of E. coli Lon protease at 1.9A resolution., Botos I, Melnikov EE, Cherry S, Khalatova AG, Rasulova FS, Tropea JE, Maurizi MR, Rotanova TV, Gustchina A, Wlodawer A, J Struct Biol. 2004 Apr-May;146(1-2):113-22. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15037242 15037242]
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== Function ==
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[[Category: Endopeptidase La]]
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[https://www.uniprot.org/uniprot/LON_ECOLI LON_ECOLI] ATP-dependent serine protease that mediates the selective degradation of mutant and abnormal proteins as well as certain short-lived regulatory proteins, including some antitoxins. Required for cellular homeostasis and for survival from DNA damage and developmental changes induced by stress. Degrades polypeptides processively to yield small peptide fragments that are 5 to 10 amino acids long. Binds to DNA in a double-stranded, site-specific manner. Endogenous substrates include the regulatory proteins RcsA and SulA, the transcriptional activator SoxS, and UmuD. Its overproduction specifically inhibits translation through at least two different pathways, one of them being the YoeB-YefM toxin-antitoxin system.<ref>PMID:12135363</ref> <ref>PMID:16584195</ref> <ref>PMID:19721064</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qz/1qzm_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1qzm ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Botos, I.]]
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[[Category: Botos I]]
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[[Category: Cherry, S.]]
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[[Category: Cherry S]]
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[[Category: Gustchina, A.]]
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[[Category: Gustchina A]]
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[[Category: Khalatova, A.G.]]
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[[Category: Khalatova AG]]
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[[Category: Maurizi, M.R.]]
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[[Category: Maurizi MR]]
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[[Category: Melnikov, E.E.]]
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[[Category: Melnikov EE]]
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[[Category: Rasulova, F.S.]]
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[[Category: Rasulova FS]]
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[[Category: Rotanova, T.V.]]
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[[Category: Rotanova TV]]
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[[Category: Tropea, J.E.]]
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[[Category: Tropea JE]]
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[[Category: Wlodawer, A.]]
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[[Category: Wlodawer A]]
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[[Category: aaa+ protein]]
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[[Category: atp-dependent protease]]
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[[Category: hydrolase]]
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[[Category: oligomerization domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 12:01:52 2008''
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Current revision

alpha-domain of ATPase

PDB ID 1qzm

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