2khf: Difference between revisions
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==Plantaricin J in DPC-micelles== | |||
<StructureSection load='2khf' size='340' side='right'caption='[[2khf]]' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2khf]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Lactiplantibacillus_plantarum Lactiplantibacillus plantarum]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KHF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KHF FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2khf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2khf OCA], [https://pdbe.org/2khf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2khf RCSB], [https://www.ebi.ac.uk/pdbsum/2khf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2khf ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/P71461_LACPN P71461_LACPN] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The three-dimensional structures of the two peptides, PlnJ and PlnK, that constitutes the two-peptide bacteriocin plantaricin JK have been solved in water/TFE and water/DPC-micellar solutions using nuclear magnetic resonance (NMR) spectroscopy. PlnJ, a 25 residue peptide, has an N-terminal amphiphilic alpha-helix between Trp-3 and Tyr-15. The 32 residues long PlnK forms a central amphiphilic alpha-helix between Gly-9 and Leu-24. Measurements of the effect on anti-microbial activity of single glycine replacements in PlnJ and PlnK show that Gly-13 and Gly-17 in both peptides are very sensitive, giving more than a 100-fold reduction in activity when large residues replace glycine. In variants where other glycine residues, Gly-20 in PlnJ and Gly-7, Gly-9, Gly-24 and Gly-25 in PlnK, were replaced, the activity was reduced less than 10-fold. It is proposed that the detrimental effect on activity when exchanging Gly-13 and Gly-17 in PlnJ and PlnK is a result of reduced ability of the two peptides to interact through the GxxxG-motifs constituting Gly-13 and Gly-17. | |||
Three-dimensional structure of the two-peptide bacteriocin plantaricin JK.,Rogne P, Haugen C, Fimland G, Nissen-Meyer J, Kristiansen PE Peptides. 2009 Sep;30(9):1613-21. Epub 2009 Jun 16. PMID:19538999<ref>PMID:19538999</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2khf" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Lactiplantibacillus plantarum]] | |||
[[Category: Large Structures]] | |||
[[Category: Haugen C]] | |||
[[Category: Kristiansen PE]] | |||
[[Category: Nissen-Meyer J]] | |||
[[Category: Rogne P]] | |||