1d3m: Difference between revisions
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==METHIONINE CORE MUTATION== | ==METHIONINE CORE MUTATION== | ||
<StructureSection load='1d3m' size='340' side='right' caption='[[1d3m]], [[Resolution|resolution]] 2.12Å' scene=''> | <StructureSection load='1d3m' size='340' side='right' caption='[[1d3m]], [[Resolution|resolution]] 2.12Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1d3m]] is a 1 chain structure | <table><tr><td colspan='2'>[[1d3m]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D3M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D3M FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=HED:2-HYDROXYETHYL+DISULFIDE'>HED</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=HED:2-HYDROXYETHYL+DISULFIDE'>HED</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cx6|1cx6]], [[1cx7|1cx7]], [[1d3n|1d3n]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cx6|1cx6]], [[1cx7|1cx7]], [[1d3n|1d3n]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1d3m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d3m OCA], [http://pdbe.org/1d3m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1d3m RCSB], [http://www.ebi.ac.uk/pdbsum/1d3m PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1d3m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d3m OCA], [http://pdbe.org/1d3m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1d3m RCSB], [http://www.ebi.ac.uk/pdbsum/1d3m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1d3m ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Lysozyme]] | [[Category: Lysozyme]] | ||
[[Category: Gassner, N C]] | [[Category: Gassner, N C]] | ||
Revision as of 09:44, 5 April 2017
METHIONINE CORE MUTATIONMETHIONINE CORE MUTATION
Structural highlights
Function[LYS_BPT4] Helps to release the mature phage particles from the cell wall by breaking down the peptidoglycan. 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 PubMedUsing heavily methionine-substituted T4 lysozyme as an example, it is shown how the addition or deletion of a small number of methionines can simplify the location of selenium sites for use in MAD phasing. By comparing the X-ray data for a large number of singly substituted lysozymes, it is shown that the optimal amino acid to be substituted by methionine is leucine, followed, in order of preference, by phenylalanine, isoleucine and valine. The identification of leucine as the first choice agrees with the ranking suggested by the Dayhoff mutation probability, i.e. by the frequency of amino-acid substitutions in the sequences of related proteins. The ranking of the second and subsequent choices, however, differ significantly. Use of differentially substituted selenomethionine proteins in X-ray structure determination.,Gassner NC, Matthews BW Acta Crystallogr D Biol Crystallogr. 1999 Dec;55(Pt 12):1967-70. PMID:10666571[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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