4w8q
From Proteopedia
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==Crystal structure of truncated hemolysin A from P. mirabilis at 1.4 Angstroms resolution== | ==Crystal structure of truncated hemolysin A from P. mirabilis at 1.4 Angstroms resolution== | ||
| - | <StructureSection load='4w8q' size='340' side='right' caption='[[4w8q]], [[Resolution|resolution]] 1.43Å' scene=''> | + | <StructureSection load='4w8q' size='340' side='right'caption='[[4w8q]], [[Resolution|resolution]] 1.43Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[4w8q]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4W8Q OCA]. For a <b>guided tour on the structure components</b> use [ | + | <table><tr><td colspan='2'>[[4w8q]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Proteus_mirabilis Proteus mirabilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4W8Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4W8Q FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.428Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4w8q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4w8q OCA], [https://pdbe.org/4w8q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4w8q RCSB], [https://www.ebi.ac.uk/pdbsum/4w8q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4w8q ProSAT]</span></td></tr> |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/HLYA_PROMI HLYA_PROMI] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Wild-type and variant forms of HpmA265 (truncated hemolysin A) from Proteus mirabilis reveal a right-handed, parallel beta-helix capped and flanked by segments of antiparallel beta-strands. The low-salt crystal structures form a dimeric structure via the implementation of on-edge main-chain hydrogen bonds donated by residues 243-263 of adjacent monomers. Surprisingly, in the high-salt structures of two variants, Y134A and Q125A-Y134A, a new dimeric interface is formed via main-chain hydrogen bonds donated by residues 203-215 of adjacent monomers, and a previously unobserved tetramer is formed. In addition, an eight-stranded antiparallel beta-sheet is formed from the flap regions of crystallographically related monomers in the high-salt structures. This new interface is possible owing to additional proteolysis of these variants after Tyr240. The interface formed in the high-salt crystal forms of hemolysin A variants may mimic the on-edge beta-strand positioning used in template-assisted hemolytic activity. | ||
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| + | Proteolysis of truncated hemolysin A yields a stable dimerization interface.,Novak WR, Bhattacharyya B, Grilley DP, Weaver TM Acta Crystallogr F Struct Biol Commun. 2017 Mar 1;73(Pt 3):138-145. doi:, 10.1107/S2053230X17002102. Epub 2017 Feb 21. PMID:28291749<ref>PMID:28291749</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 4w8q" style="background-color:#fffaf0;"></div> | ||
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| + | ==See Also== | ||
| + | *[[Hemolysin 3D structures|Hemolysin 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Proteus mirabilis]] |
| - | [[Category: | + | [[Category: Glasgow E]] |
| - | [[Category: | + | [[Category: Novak WRP]] |
| - | [[Category: | + | [[Category: Thompson JR]] |
| - | [[Category: | + | [[Category: Weaver TM]] |
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Current revision
Crystal structure of truncated hemolysin A from P. mirabilis at 1.4 Angstroms resolution
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