1l19: Difference between revisions

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[[Image:1l19.png|left|200px]]


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==ENHANCED PROTEIN THERMOSTABILITY FROM DESIGNED MUTATIONS THAT INTERACT WITH ALPHA-HELIX DIPOLES==
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<StructureSection load='1l19' size='340' side='right'caption='[[1l19]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1l19]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L19 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L19 FirstGlance]. <br>
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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]] 1.7&#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=1l19 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l19 OCA], [https://pdbe.org/1l19 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l19 RCSB], [https://www.ebi.ac.uk/pdbsum/1l19 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l19 ProSAT]</span></td></tr>
{{STRUCTURE_1l19|  PDB=1l19  |  SCENE= }}
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== Function ==
[https://www.uniprot.org/uniprot/ENLYS_BPT4 ENLYS_BPT4] Endolysin with lysozyme activity that degrades host peptidoglycans and participates with the holin and spanin proteins in the sequential events which lead to the programmed host cell lysis releasing the mature viral particles. Once the holin has permeabilized the host cell membrane, the endolysin can reach the periplasm and break down the peptidoglycan layer.<ref>PMID:22389108</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l1/1l19_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=1l19 ConSurf].
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== Publication Abstract from PubMed ==
Two different genetically engineered amino-acid substitutions designed to interact with alpha-helix dipoles in T4 lysozyme are shown to increase the thermal stability of the protein. Crystallographic analyses of the mutant lysozyme structures suggest that the stabilization is due to electrostatic interaction and does not require precise hydrogen bonding between the substituted amino acid and the end of the alpha-helix.


===ENHANCED PROTEIN THERMOSTABILITY FROM DESIGNED MUTATIONS THAT INTERACT WITH ALPHA-HELIX DIPOLES===
Enhanced protein thermostability from designed mutations that interact with alpha-helix dipoles.,Nicholson H, Becktel WJ, Matthews BW Nature. 1988 Dec 15;336(6200):651-6. PMID:3200317<ref>PMID:3200317</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1l19" style="background-color:#fffaf0;"></div>


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==See Also==
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*[[Lysozyme 3D structures|Lysozyme 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 3200317 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_3200317}}
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</StructureSection>
==About this Structure==
[[Category: Escherichia virus T4]]
1L19 is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L19 OCA].
[[Category: Large Structures]]
 
[[Category: Matthews BW]]
==Reference==
[[Category: Nicholson H]]
<ref group="xtra">PMID:3200317</ref><references group="xtra"/>
[[Category: Enterobacteria phage t4]]
[[Category: Lysozyme]]
[[Category: Matthews, B W.]]
[[Category: Nicholson, H.]]
 
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