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==CONTRIBUTIONS OF HYDROGEN BONDS OF THR 157 TO THE THERMODYNAMIC STABILITY OF PHAGE T4 LYSOZYME== | ==CONTRIBUTIONS OF HYDROGEN BONDS OF THR 157 TO THE THERMODYNAMIC STABILITY OF PHAGE T4 LYSOZYME== | ||
<StructureSection load='1l09' size='340' side='right' caption='[[1l09]], [[Resolution|resolution]] 1.70Å' scene=''> | <StructureSection load='1l09' size='340' side='right'caption='[[1l09]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1l09]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1l09]] 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=1L09 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L09 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7Å</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=1l09 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l09 OCA], [https://pdbe.org/1l09 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l09 RCSB], [https://www.ebi.ac.uk/pdbsum/1l09 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l09 ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == 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 == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l0/1l09_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l0/1l09_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 35: | Line 35: | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Escherichia virus T4]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Alber | [[Category: Alber T]] | ||
[[Category: Bell | [[Category: Bell J]] | ||
[[Category: Dao-Pin | [[Category: Dao-Pin S]] | ||
[[Category: Matthews | [[Category: Matthews BW]] | ||
Latest revision as of 11:43, 22 May 2024
CONTRIBUTIONS OF HYDROGEN BONDS OF THR 157 TO THE THERMODYNAMIC STABILITY OF PHAGE T4 LYSOZYMECONTRIBUTIONS OF HYDROGEN BONDS OF THR 157 TO THE THERMODYNAMIC STABILITY OF PHAGE T4 LYSOZYME
Structural highlights
FunctionENLYS_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.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedMeasurements of changes in structure and stability caused by 13 different substitutions for threonine 157 in phage T4 lysozyme show that the most stable lysozyme variants contain hydrogen bonds analogous to those in the wild-type enzyme and that structural adjustments allow the protein to be surprisingly tolerant of amino-acid substitutions. Contributions of hydrogen bonds of Thr 157 to the thermodynamic stability of phage T4 lysozyme.,Alber T, Sun DP, Wilson K, Wozniak JA, Cook SP, Matthews BW Nature. 1987 Nov 5-11;330(6143):41-6. PMID:3118211[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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