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| | ==L. reuters 100-23 SRRP== | | ==L. reuters 100-23 SRRP== |
| - | <StructureSection load='5ny0' size='340' side='right' caption='[[5ny0]], [[Resolution|resolution]] 2.00Å' scene=''> | + | <StructureSection load='5ny0' size='340' side='right'caption='[[5ny0]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5ny0]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lactobacillus_reuteri_100-23 Lactobacillus reuteri 100-23]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NY0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5NY0 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5ny0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Limosilactobacillus_reuteri_subsp._rodentium Limosilactobacillus reuteri subsp. rodentium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NY0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5NY0 FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">srrp ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=349123 Lactobacillus reuteri 100-23])</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]] 2Å</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=5ny0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ny0 OCA], [http://pdbe.org/5ny0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ny0 RCSB], [http://www.ebi.ac.uk/pdbsum/5ny0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ny0 ProSAT]</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=5ny0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ny0 OCA], [https://pdbe.org/5ny0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ny0 RCSB], [https://www.ebi.ac.uk/pdbsum/5ny0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ny0 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/A0A384E0N5_LIMR1 A0A384E0N5_LIMR1] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Lactobacillus reuteri 100-23]] | + | [[Category: Large Structures]] |
| - | [[Category: Dong, C]] | + | [[Category: Limosilactobacillus reuteri subsp. rodentium]] |
| - | [[Category: Sequeira, S]] | + | [[Category: Dong C]] |
| - | [[Category: Adhesin]] | + | [[Category: Sequeira S]] |
| - | [[Category: Beta-solenoid]]
| + | |
| - | [[Category: Cell adhesion]]
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| - | [[Category: L. reuteri]]
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| Structural highlights
Function
A0A384E0N5_LIMR1
Publication Abstract from PubMed
Lactobacillus reuteri, a Gram-positive bacterial species inhabiting the gastrointestinal tract of vertebrates, displays remarkable host adaptation. Previous mutational analyses of rodent strain L. reuteri 100-23C identified a gene encoding a predicted surface-exposed serine-rich repeat protein (SRRP100-23) that was vital for L. reuteri biofilm formation in mice. SRRPs have emerged as an important group of surface proteins on many pathogens, but no structural information is available in commensal bacteria. Here we report the 2.00-A and 1.92-A crystal structures of the binding regions (BRs) of SRRP100-23 and SRRP53608 from L. reuteri ATCC 53608, revealing a unique beta-solenoid fold in this important adhesin family. SRRP53608-BR bound to host epithelial cells and DNA at neutral pH and recognized polygalacturonic acid (PGA), rhamnogalacturonan I, or chondroitin sulfate A at acidic pH. Mutagenesis confirmed the role of the BR putative binding site in the interaction of SRRP53608-BR with PGA. Long molecular dynamics simulations showed that SRRP53608-BR undergoes a pH-dependent conformational change. Together, these findings provide mechanistic insights into the role of SRRPs in host-microbe interactions and open avenues of research into the use of biofilm-forming probiotics against clinically important pathogens.
Structural basis for the role of serine-rich repeat proteins from Lactobacillus reuteri in gut microbe-host interactions.,Sequeira S, Kavanaugh D, MacKenzie DA, Suligoj T, Walpole S, Leclaire C, Gunning AP, Latousakis D, Willats WGT, Angulo J, Dong C, Juge N Proc Natl Acad Sci U S A. 2018 Mar 5. pii: 1715016115. doi:, 10.1073/pnas.1715016115. PMID:29507249[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Sequeira S, Kavanaugh D, MacKenzie DA, Suligoj T, Walpole S, Leclaire C, Gunning AP, Latousakis D, Willats WGT, Angulo J, Dong C, Juge N. Structural basis for the role of serine-rich repeat proteins from Lactobacillus reuteri in gut microbe-host interactions. Proc Natl Acad Sci U S A. 2018 Mar 5. pii: 1715016115. doi:, 10.1073/pnas.1715016115. PMID:29507249 doi:http://dx.doi.org/10.1073/pnas.1715016115
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