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| - | ==CRYSTAL STRUCTURE OF THE MODULAR CPL-1 ENDOLYSIN COMPLEXED WITH A PEPTIDOGLYCAN ANALOGUE (E94Q MUTANT)== | + | |
| - | <StructureSection load='2ixv' size='340' side='right' caption='[[2ixv]], [[Resolution|resolution]] 1.96Å' scene=''> | + | ==Crystal structure of the modular Cpl-1 endolysin complexed with a peptidoglycan analogue (E94Q mutant)== |
| | + | <StructureSection load='2ixv' size='340' side='right'caption='[[2ixv]], [[Resolution|resolution]] 1.96Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2ixv]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bpcp1 Bpcp1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IXV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2IXV FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2ixv]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_phage_Cp1 Streptococcus phage Cp1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IXV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IXV FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=MU2:N-ACETYLMURAMYL-L-ALANYL-D-ISOGLUTAMINE'>MU2</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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]] 1.96Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1h09|1h09]], [[1oba|1oba]], [[2ixu|2ixu]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ALA:ALANINE'>ALA</scene>, <scene name='pdbligand=DGN:D-GLUTAMINE'>DGN</scene>, <scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=MUB:N-ACETYLMURAMIC+ACID'>MUB</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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'>[https://proteopedia.org/fgij/fg.htm?mol=2ixv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ixv OCA], [https://pdbe.org/2ixv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ixv RCSB], [https://www.ebi.ac.uk/pdbsum/2ixv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ixv 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=2ixv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ixv OCA], [http://pdbe.org/2ixv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ixv RCSB], [http://www.ebi.ac.uk/pdbsum/2ixv PDBsum]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/LYS_BPCP1 LYS_BPCP1]] Responsible for the separation of the host daughter cells at the end of cell division and participates in the liberation of progeny bacteriophage into the medium. Strictly depends on the presence of choline-containing cell walls for activity. | + | [https://www.uniprot.org/uniprot/LYS_BPCP1 LYS_BPCP1] Responsible for the separation of the host daughter cells at the end of cell division and participates in the liberation of progeny bacteriophage into the medium. Strictly depends on the presence of choline-containing cell walls for activity. |
| | == 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/ix/2ixv_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ix/2ixv_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> |
| | </jmolCheckbox> | | </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/chain_selection.php?pdb_ID=2ata ConSurf]. | + | </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=2ixv ConSurf]. |
| | <div style="clear:both"></div> | | <div style="clear:both"></div> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bpcp1]] | + | [[Category: Large Structures]] |
| - | [[Category: Lysozyme]] | + | [[Category: Streptococcus phage Cp1]] |
| - | [[Category: Hermoso, J A]] | + | [[Category: Hermoso JA]] |
| - | [[Category: Perez-Dorado, I]] | + | [[Category: Perez-Dorado I]] |
| - | [[Category: Antimicrobial]]
| + | |
| - | [[Category: Bacteriolytic enzyme]]
| + | |
| - | [[Category: Glycosidase]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Muein hydrolase]]
| + | |
| - | [[Category: Multimodular]]
| + | |
| - | [[Category: Pneumococcal cell wall degradation]]
| + | |
| Structural highlights
2ixv is a 1 chain structure with sequence from Streptococcus phage Cp1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Method: | X-ray diffraction, Resolution 1.96Å |
| Ligands: | , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
LYS_BPCP1 Responsible for the separation of the host daughter cells at the end of cell division and participates in the liberation of progeny bacteriophage into the medium. Strictly depends on the presence of choline-containing cell walls for activity.
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 PubMed
Pneumococcal bacteriophage-encoded lysins are modular proteins that have been shown to act as enzymatic antimicrobial agents (enzybiotics) in treatment of streptococcal infections. The first x-ray crystal structures of the Cpl-1 lysin, encoded by the pneumococcal phage Cp-1, in complex with three bacterial cell wall peptidoglycan (PG) analogues are reported herein. The Cpl-1 structure is folded in two well defined modules, one responsible for anchoring to the pneumococcal cell wall and the other, a catalytic module, that hydrolyzes the PG. Conformational rearrangement of Tyr-127 is a critical event in molecular recognition of a stretch of five saccharide rings of the polymeric peptidoglycan (cell wall). The PG is bound at a stretch of the surface that is defined as the peptidoglycan-binding sites 1 and 2, the juncture of which catalysis takes place. The peptidoglycan-binding site 1 binds to a stretch of three saccharides of the peptidoglycan in a conformation essentially identical to that of the peptidoglycan in solution. In contrast, binding of two peptidoglycan saccharides at the peptidoglycan-binding site 2 introduces a kink into the solution structure of the peptidoglycan, en route to catalytic turnover. These findings provide the first structural evidence on recognition of the peptidoglycan and shed light on the discrete events of cell wall degradation by Cpl-1.
Elucidation of the molecular recognition of bacterial cell wall by modular pneumococcal phage endolysin CPL-1.,Perez-Dorado I, Campillo NE, Monterroso B, Hesek D, Lee M, Paez JA, Garcia P, Martinez-Ripoll M, Garcia JL, Mobashery S, Menendez M, Hermoso JA J Biol Chem. 2007 Aug 24;282(34):24990-9. Epub 2007 Jun 19. PMID:17581815[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Perez-Dorado I, Campillo NE, Monterroso B, Hesek D, Lee M, Paez JA, Garcia P, Martinez-Ripoll M, Garcia JL, Mobashery S, Menendez M, Hermoso JA. Elucidation of the molecular recognition of bacterial cell wall by modular pneumococcal phage endolysin CPL-1. J Biol Chem. 2007 Aug 24;282(34):24990-9. Epub 2007 Jun 19. PMID:17581815 doi:10.1074/jbc.M704317200
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