2n6j

From Proteopedia

(Difference between revisions)

Revision as of 15:40, 8 June 2021

Solution structure of Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile

Structural highlights

2n6j is a 1 chain structure with sequence from Clostridioides difficile 630. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	zmp1, CD630_28300 (Clostridioides difficile 630)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ZMP1_PEPD6] Zinc-dependent endoprotease with a preference for proline residues surrounding the scissile bond. Efficiently cleaves the LPXTG cell surface proteins CD630_28310 and CD630_32460 at multiple cleavage sites. Is also able to cleave fibronectin and fibrinogen in vitro; cleaves at the N-terminus of the beta-chain of fibrinogen. Destabilizes the fibronectin network produced by human fibroblasts. Therefore, may have a role in the regulation of C.difficile adhesion versus motility by cleaving surface adhesion proteins, and may be important in key steps of clostridial pathogenesis by degrading extracellular matrix components associated with the gut epithelial cells. To a lesser extent, IgA1, IgA2, and human HSP 90-beta, but not HSP 90-alpha, are also substrates for the enzyme. Is not active on different collagen types, casein and gelatin.^[1] ^[2]

Publication Abstract from PubMed

Proteases are commonly secreted by microorganisms. In some pathogens, they can play a series of functional roles during infection, including maturation of cell surface or extracellular virulence factors, interference with host cell signaling, massive host tissue destruction, and dissolution of infection-limiting clots through degradation of the host proteins devoted to the coagulation cascade. We previously reported the identification and characterization of Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile, demonstrated that Zmp1 is able to degrade fibrinogen in vitro, and identified two residues necessary to the catalytic activity. In the present work, we solved the solution structure of Zmp1 by Nuclear Magnetic Resonance (NMR) and compared it with the recently solved X-ray structures of substrate-bound and substrate-free Zmp1, highlighting similarities and differences. We also combined the structural characterization to biochemical assays and site-directed mutagenesis, to provide new insights into the catalytic site and on the residues responsible for substrate specificity. The Zmp1 structure showed similarity to the catalytic domain of Anthrax Lethal Factor of Bacillus anthracis. Analogies and differences in the catalytic and in the substrate-binding sites of the two proteins are discussed.

Structural characterization of zinc-bound Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile.,Rubino JT, Martinelli M, Cantini F, Castagnetti A, Leuzzi R, Banci L, Scarselli M J Biol Inorg Chem. 2015 Dec 28. PMID:26711661^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Cafardi V, Biagini M, Martinelli M, Leuzzi R, Rubino JT, Cantini F, Norais N, Scarselli M, Serruto D, Unnikrishnan M. Identification of a novel zinc metalloprotease through a global analysis of Clostridium difficile extracellular proteins. PLoS One. 2013 Nov 26;8(11):e81306. doi: 10.1371/journal.pone.0081306., eCollection 2013. PMID:24303041 doi:http://dx.doi.org/10.1371/journal.pone.0081306
↑ Hensbergen PJ, Klychnikov OI, Bakker D, van Winden VJ, Ras N, Kemp AC, Cordfunke RA, Dragan I, Deelder AM, Kuijper EJ, Corver J, Drijfhout JW, van Leeuwen HC. A novel secreted metalloprotease (CD2830) from Clostridium difficile cleaves specific proline sequences in LPXTG cell surface proteins. Mol Cell Proteomics. 2014 May;13(5):1231-44. doi: 10.1074/mcp.M113.034728. Epub, 2014 Mar 12. PMID:24623589 doi:http://dx.doi.org/10.1074/mcp.M113.034728
↑ Rubino JT, Martinelli M, Cantini F, Castagnetti A, Leuzzi R, Banci L, Scarselli M. Structural characterization of zinc-bound Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile. J Biol Inorg Chem. 2015 Dec 28. PMID:26711661 doi:http://dx.doi.org/10.1007/s00775-015-1319-6

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2n6j"

@@ Line 1: / Line 1: @@
 ==Solution structure of Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile==
-<StructureSection load='2n6j' size='340' side='right' caption='[[2n6j]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
+<StructureSection load='2n6j' size='340' side='right'caption='[[2n6j]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2n6j]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Clostridioides_difficile_630 Clostridioides difficile 630]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N6J OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2N6J FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2n6j]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridioides_difficile_630 Clostridioides difficile 630]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N6J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2N6J FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">zmp1, CD630_28300 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=272563 Clostridioides difficile 630])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">zmp1, CD630_28300 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=272563 Clostridioides difficile 630])</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=2n6j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n6j OCA], [http://pdbe.org/2n6j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2n6j RCSB], [http://www.ebi.ac.uk/pdbsum/2n6j PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2n6j 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=2n6j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n6j OCA], [https://pdbe.org/2n6j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2n6j RCSB], [https://www.ebi.ac.uk/pdbsum/2n6j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2n6j ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/ZMP1_PEPD6 ZMP1_PEPD6]] Zinc-dependent endoprotease with a preference for proline residues surrounding the scissile bond. Efficiently cleaves the LPXTG cell surface proteins CD630_28310 and CD630_32460 at multiple cleavage sites. Is also able to cleave fibronectin and fibrinogen in vitro; cleaves at the N-terminus of the beta-chain of fibrinogen. Destabilizes the fibronectin network produced by human fibroblasts. Therefore, may have a role in the regulation of C.difficile adhesion versus motility by cleaving surface adhesion proteins, and may be important in key steps of clostridial pathogenesis by degrading extracellular matrix components associated with the gut epithelial cells. To a lesser extent, IgA1, IgA2, and human HSP 90-beta, but not HSP 90-alpha, are also substrates for the enzyme. Is not active on different collagen types, casein and gelatin.<ref>PMID:24303041</ref> <ref>PMID:24623589</ref>
+[[https://www.uniprot.org/uniprot/ZMP1_PEPD6 ZMP1_PEPD6]] Zinc-dependent endoprotease with a preference for proline residues surrounding the scissile bond. Efficiently cleaves the LPXTG cell surface proteins CD630_28310 and CD630_32460 at multiple cleavage sites. Is also able to cleave fibronectin and fibrinogen in vitro; cleaves at the N-terminus of the beta-chain of fibrinogen. Destabilizes the fibronectin network produced by human fibroblasts. Therefore, may have a role in the regulation of C.difficile adhesion versus motility by cleaving surface adhesion proteins, and may be important in key steps of clostridial pathogenesis by degrading extracellular matrix components associated with the gut epithelial cells. To a lesser extent, IgA1, IgA2, and human HSP 90-beta, but not HSP 90-alpha, are also substrates for the enzyme. Is not active on different collagen types, casein and gelatin.<ref>PMID:24303041</ref> <ref>PMID:24623589</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 24: / Line 24: @@
 </StructureSection>
 [[Category: Clostridioides difficile 630]]
+[[Category: Large Structures]]
 [[Category: Banci, L]]
 [[Category: Cantini, F]]

2n6j

From Proteopedia

Revision as of 15:40, 8 June 2021

Solution structure of Zmp1, a zinc-dependent metalloprotease secreted by Clostridium difficile

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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