|
|
| (One intermediate revision not shown.) |
| Line 1: |
Line 1: |
| | | | |
| | ==beta-fructofuranosidase from Bifidobacterium longum - complex with fructose== | | ==beta-fructofuranosidase from Bifidobacterium longum - complex with fructose== |
| - | <StructureSection load='3pij' size='340' side='right' caption='[[3pij]], [[Resolution|resolution]] 1.80Å' scene=''> | + | <StructureSection load='3pij' size='340' side='right'caption='[[3pij]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3pij]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/As_1.2186 As 1.2186]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PIJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3PIJ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3pij]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bifidobacterium_longum Bifidobacterium longum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PIJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PIJ 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=FRU:FRUCTOSE'>FRU</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]] 1.8Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3pig|3pig]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FRU:FRUCTOSE'>FRU</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EF216677 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=216816 AS 1.2186])</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=3pij FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pij OCA], [https://pdbe.org/3pij PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pij RCSB], [https://www.ebi.ac.uk/pdbsum/3pij PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pij ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-fructofuranosidase Beta-fructofuranosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.26 3.2.1.26] </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=3pij FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pij OCA], [http://pdbe.org/3pij PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3pij RCSB], [http://www.ebi.ac.uk/pdbsum/3pij PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3pij ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/A2TLS9_BIFLN A2TLS9_BIFLN] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 23: |
Line 23: |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: As 1 2186]] | + | [[Category: Bifidobacterium longum]] |
| - | [[Category: Beta-fructofuranosidase]] | + | [[Category: Large Structures]] |
| - | [[Category: Bielecki, S]] | + | [[Category: Bielecki S]] |
| - | [[Category: Bujacz, A]] | + | [[Category: Bujacz A]] |
| - | [[Category: Bujacz, G]] | + | [[Category: Bujacz G]] |
| - | [[Category: Krzepkowska-Jedrzejczak, M]] | + | [[Category: Krzepkowska-Jedrzejczak M]] |
| - | [[Category: Redzynia, I]] | + | [[Category: Redzynia I]] |
| - | [[Category: Five-bladed beta-propeller and beta-sandwich domain]]
| + | |
| - | [[Category: Fructose]]
| + | |
| - | [[Category: Glycoside hydrolase family 32]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Probiotic bacteria]]
| + | |
| Structural highlights
Function
A2TLS9_BIFLN
Publication Abstract from PubMed
We solved the 1.8 A crystal structure of beta-fructofuranosidase from Bifidobacterium longum KN29.1 - a unique enzyme that allows these probiotic bacteria to function in the human digestive system. The sequence of beta-fructofuranosidase classifies it as belonging to the glycoside hydrolase family 32 (GH32). GH32 enzymes show a wide range of substrate specificity and different functions in various organisms. All enzymes from this family share a similar fold, containing two domains: an N-terminal five-bladed beta-propeller and a C-terminal beta-sandwich module. The active site is located in the centre of the beta-propeller domain, in the bottom of a 'funnel'. The binding site, -1, responsible for tight fructose binding, is highly conserved among the GH32 enzymes. Bifidobacterium longum KN29.1 beta-fructofuranosidase has a 35-residue elongation of the N-terminus containing a five-turn alpha-helix, which distinguishes it from the other known members of the GH32 family. This new structural element could be one of the functional modifications of the enzyme that allows the bacteria to act in a human digestive system. We also solved the 1.8 A crystal structure of the beta-fructofuranosidase complex with beta-d-fructose, a hydrolysis product obtained by soaking apo crystal in raffinose. Database Coordinates and structure factors have been deposited in the Protein Data Bank under accession codes: 3PIG and 3PIJ Structured digital abstract * -fructofuranosidase binds to -fructofuranosidase by x-ray crystallography (View interaction).
Crystal structures of the apo form of beta-fructofuranosidase from Bifidobacterium longum and its complex with fructose.,Bujacz A, Jedrzejczak-Krzepkowska M, Bielecki S, Redzynia I, Bujacz G FEBS J. 2011 Mar 18. doi: 10.1111/j.1742-4658.2011.08098.x. PMID:21418142[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Bujacz A, Jedrzejczak-Krzepkowska M, Bielecki S, Redzynia I, Bujacz G. Crystal structures of the apo form of beta-fructofuranosidase from Bifidobacterium longum and its complex with fructose. FEBS J. 2011 Mar 18. doi: 10.1111/j.1742-4658.2011.08098.x. PMID:21418142 doi:10.1111/j.1742-4658.2011.08098.x
|
