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| | <StructureSection load='6s5p' size='340' side='right'caption='[[6s5p]], [[Resolution|resolution]] 1.46Å' scene=''> | | <StructureSection load='6s5p' size='340' side='right'caption='[[6s5p]], [[Resolution|resolution]] 1.46Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6s5p]] is a 7 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_aeruginosus"_(schroeter_1872)_trevisan_1885 "bacillus aeruginosus" (schroeter 1872) trevisan 1885]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6S5P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6S5P FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6s5p]] is a 7 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6S5P OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6S5P FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=ZDC:3,7-ANHYDRO-2,8-DIDEOXY-L-GLYCERO-D-GLUCO-OCTONIC+ACID'>ZDC</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.46Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=ZDC:3,7-ANHYDRO-2,8-DIDEOXY-L-GLYCERO-D-GLUCO-OCTONIC+ACID'>ZDC</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lecB, C0044_25260, CAZ10_21840, DT376_00595, DY979_15445, ECC04_10105, EFK27_13700, EGV95_09240, EGY23_15550, IPC669_23070, PA5486_01888, PAERUG_E15_London_28_01_14_00983, PAMH19_1713, RW109_RW109_02453 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=287 "Bacillus aeruginosus" (Schroeter 1872) Trevisan 1885])</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=6s5p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6s5p OCA], [https://pdbe.org/6s5p PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6s5p RCSB], [https://www.ebi.ac.uk/pdbsum/6s5p PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6s5p ProSAT]</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=6s5p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6s5p OCA], [http://pdbe.org/6s5p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6s5p RCSB], [http://www.ebi.ac.uk/pdbsum/6s5p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6s5p ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q9HYN5_PSEAE Q9HYN5_PSEAE] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Baeriswyl, S]] | + | [[Category: Pseudomonas aeruginosa]] |
| - | [[Category: Reymond, J L]] | + | [[Category: Synthetic construct]] |
| - | [[Category: Stocker, A]] | + | [[Category: Baeriswyl S]] |
| - | [[Category: Fucosylated]] | + | [[Category: Reymond J-L]] |
| - | [[Category: Lectin]] | + | [[Category: Stocker A]] |
| - | [[Category: Sugar binding protein]]
| + | |
| Structural highlights
Function
Q9HYN5_PSEAE
Publication Abstract from PubMed
Herein, we report X-ray crystal structures of 11-13 residue antimicrobial peptides (AMPs) active against Pseudomonas aeruginosa as complexes of fucosylated d-enantiomeric sequences with the P. aeruginosa lectin LecB. These represent the first crystal structures of short AMPs. In 24 individual structures of eight different peptides, we found mostly alpha-helices assembled as two-helix or four-helix bundles with a hydrophobic core and cationic residues pointing outside. Two of the analogs formed an extended structure engaging in multiple contacts with the lectin. Molecular dynamics (MD) simulations showed that alpha-helices are stabilized by bundle formation and suggested that the N-terminal acyl group present in the linker to the fucosyl group can extend the helix by one additional H-bond and increase alpha-helix amphiphilicity. Investigating N-terminal acylation led to AMPs with equivalent and partly stronger antibacterial effects compared to the free peptide.
X-ray Crystal Structures of Short Antimicrobial Peptides as Pseudomonas aeruginosa Lectin B Complexes.,Baeriswyl S, Gan BH, Siriwardena TN, Visini R, Robadey M, Javor S, Stocker A, Darbre T, Reymond JL ACS Chem Biol. 2019 Mar 11. doi: 10.1021/acschembio.9b00047. PMID:30830745[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Baeriswyl S, Gan BH, Siriwardena TN, Visini R, Robadey M, Javor S, Stocker A, Darbre T, Reymond JL. X-ray Crystal Structures of Short Antimicrobial Peptides as Pseudomonas aeruginosa Lectin B Complexes. ACS Chem Biol. 2019 Mar 11. doi: 10.1021/acschembio.9b00047. PMID:30830745 doi:http://dx.doi.org/10.1021/acschembio.9b00047
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