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| | ==High resolution structure of Penicillium chrysogenum alpha-L-arabinanase complexed with arabinobiose== | | ==High resolution structure of Penicillium chrysogenum alpha-L-arabinanase complexed with arabinobiose== |
| - | <StructureSection load='3a72' size='340' side='right' caption='[[3a72]], [[Resolution|resolution]] 1.04Å' scene=''> | + | <StructureSection load='3a72' size='340' side='right'caption='[[3a72]], [[Resolution|resolution]] 1.04Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3a72]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_10106 Atcc 10106]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A72 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3A72 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3a72]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Penicillium_chrysogenum Penicillium chrysogenum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A72 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A72 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AHR:ALPHA-L-ARABINOFURANOSE'>AHR</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]] 1.04Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3a71|3a71]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AHR:ALPHA-L-ARABINOFURANOSE'>AHR</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-reducing_end_alpha-L-arabinofuranosidase Non-reducing end alpha-L-arabinofuranosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.55 3.2.1.55] </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=3a72 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a72 OCA], [https://pdbe.org/3a72 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3a72 RCSB], [https://www.ebi.ac.uk/pdbsum/3a72 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3a72 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=3a72 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a72 OCA], [http://pdbe.org/3a72 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a72 RCSB], [http://www.ebi.ac.uk/pdbsum/3a72 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3a72 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q7ZA77_PENCH Q7ZA77_PENCH] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| - | *[[Arabinanase|Arabinanase]] | + | *[[Arabinanase 3D structures|Arabinanase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 10106]] | + | [[Category: Large Structures]] |
| - | [[Category: Non-reducing end alpha-L-arabinofuranosidase]] | + | [[Category: Penicillium chrysogenum]] |
| - | [[Category: Sogabe, Y]] | + | [[Category: Sogabe Y]] |
| - | [[Category: Arabinase]]
| + | |
| - | [[Category: Glycosyl hydrolase]]
| + | |
| - | [[Category: Hydrolase]]
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| Structural highlights
Function
Q7ZA77_PENCH
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
Arabinanase Abnx from Penicillium chrysogenum 31B, which belongs to the GH93 family, releases arabinobiose from the nonreducing terminus of alpha-1,5-L-arabinan, which is distributed in the primary cell walls of higher plants. Crystal structures of Abnx and of its complex with arabinobiose were determined at the high resolutions of 1.14 A to an R(work) of 10.7% (R(free) = 12.8%) and 1.04 A to an R(work) of 10.4% (R(free) = 12.5%). Abnx has a six-bladed beta-propeller fold with a typical ring-closure mode called `Velcro', in which the last four-stranded beta-sheet is completed by the incorporation of a strand from the N-terminus. Catalytic residues which act as a nucleophile and an acid/base were proposed from the structures and confirmed by site-directed mutagenesis. The substrate-binding groove is enclosed at one end by two residues, Glu64 and Tyr66, which contribute to the recognition of the nonreducing chain end of the polysaccharide. A comparison with the related enzyme Arb93A which has a quite similar overall structure suggested that Abnx has different mechanisms to funnel substrates to the active site and/or to stabilize the transition state.
High-resolution structure of exo-arabinanase from Penicillium chrysogenum.,Sogabe Y, Kitatani T, Yamaguchi A, Kinoshita T, Adachi H, Takano K, Inoue T, Mori Y, Matsumura H, Sakamoto T, Tada T Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):415-22. Epub 2011, Apr 13. PMID:21543843[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Sogabe Y, Kitatani T, Yamaguchi A, Kinoshita T, Adachi H, Takano K, Inoue T, Mori Y, Matsumura H, Sakamoto T, Tada T. High-resolution structure of exo-arabinanase from Penicillium chrysogenum. Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):415-22. Epub 2011, Apr 13. PMID:21543843 doi:10.1107/S0907444911006299
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