3sy2

From Proteopedia

(Difference between revisions)

Revision as of 11:05, 5 August 2016

Crystal structure of the Salmonella E3 ubiquitin ligase SopA in complex with the human E2 UbcH7

Structural highlights

3sy2 is a 4 chain structure with sequence from "bacillus_typhimurium"_loeffler_1892 "bacillus typhimurium" loeffler 1892 and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	sopA, STM2066 ("Bacillus typhimurium" Loeffler 1892), UBE2L3, UBCE7, UBCH7 (HUMAN)
Activity:	Ubiquitin--protein ligase, with EC number 6.3.2.19
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[SOPA_SALTY] Effector proteins function to alter host cell physiology and promote bacterial survival in host tissues. This protein is an E3 ubiquitin ligase that interferes with host's ubiquitination pathway. Required for inducing polymorphonuclear leukocytes migration across the intestinal epithelium. Preferentially uses host UBE2D1 (UBCH5A), UBE2D2 (UBCH5B) and UBE2L3 (UBCH7) as E2 ubiquitin-conjugating enzymes.^[1] ^[2] [UB2L3_HUMAN] Ubiquitin-conjugating enzyme E2 that specifically acts with HECT-type and RBR family E3 ubiquitin-protein ligases. Does not function with most RING-containing E3 ubiquitin-protein ligases because it lacks intrinsic E3-independent reactivity with lysine: in contrast, it has activity with the RBR family E3 enzymes, such as PARK2 and ARIH1, that function like function like RING-HECT hybrids. Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-11'-linked polyubiquitination. Involved in the selective degradation of short-lived and abnormal proteins. Down-regulated during the S-phase it is involved in progression through the cell cycle. Regulates nuclear hormone receptors transcriptional activity. May play a role in myelopoiesis.^[3] ^[4] ^[5] ^[6] ^[7] ^[8] ^[9]

Publication Abstract from PubMed

In eukaryotes, ubiquitination is an important posttranslational process achieved through a cascade of ubiquitin-activating (E1), conjugating (E2), and ligase (E3) enzymes. Many pathogenic bacteria deliver virulence factors into the host cell that function as E3 ligases. How these bacterial "Trojan horses" integrate into the eukaryotic ubiquitin system has remained a mystery. Here we report crystal structures of two bacterial E3s, Salmonella SopA and Escherichia coli NleL, both in complex with human E2 UbcH7. These structures represent two distinct conformational states of the bacterial E3s, supporting the necessary structural rearrangements associated with ubiquitin transfer. The E2-interacting surface of SopA and NleL has little similarity to those of eukaryotic E3s. However, both bacterial E3s bind to the canonical surface of E2 that normally interacts with eukaryotic E3s. Furthermore, we show that a glutamate residue on E3 is involved in catalyzing ubiquitin transfer from E3 to the substrate, but not from E2 to E3. Together, these results provide mechanistic insights into the ubiquitin pathway and a framework for understanding molecular mimicry in bacterial pathogenesis.

Crystal structures of two bacterial HECT-like E3 ligases in complex with a human E2 reveal atomic details of pathogen-host interactions.,Lin DY, Diao J, Chen J Proc Natl Acad Sci U S A. 2012 Feb 7;109(6):1925-30. Epub 2012 Jan 23. PMID:22308380^[10]

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

References

↑ Zhang Y, Higashide WM, McCormick BA, Chen J, Zhou D. The inflammation-associated Salmonella SopA is a HECT-like E3 ubiquitin ligase. Mol Microbiol. 2006 Nov;62(3):786-93. PMID:17076670 doi:10.1111/j.1365-2958.2006.05407.x
↑ Diao J, Zhang Y, Huibregtse JM, Zhou D, Chen J. Crystal structure of SopA, a Salmonella effector protein mimicking a eukaryotic ubiquitin ligase. Nat Struct Mol Biol. 2008 Jan;15(1):65-70. Epub 2007 Dec 9. PMID:18066077 doi:10.1038/nsmb1346
↑ Shimura H, Hattori N, Kubo S, Mizuno Y, Asakawa S, Minoshima S, Shimizu N, Iwai K, Chiba T, Tanaka K, Suzuki T. Familial Parkinson disease gene product, parkin, is a ubiquitin-protein ligase. Nat Genet. 2000 Jul;25(3):302-5. PMID:10888878 doi:10.1038/77060
↑ Verma S, Ismail A, Gao X, Fu G, Li X, O'Malley BW, Nawaz Z. The ubiquitin-conjugating enzyme UBCH7 acts as a coactivator for steroid hormone receptors. Mol Cell Biol. 2004 Oct;24(19):8716-26. PMID:15367689 doi:10.1128/MCB.24.19.8716-8726.2004
↑ Garside H, Waters C, Berry A, Rice L, Ardley HC, White A, Robinson PA, Ray D. UbcH7 interacts with the glucocorticoid receptor and mediates receptor autoregulation. J Endocrinol. 2006 Sep;190(3):621-9. PMID:17003263 doi:10.1677/joe.1.06799
↑ Marteijn JA, van der Meer LT, Smit JJ, Noordermeer SM, Wissink W, Jansen P, Swarts HG, Hibbert RG, de Witte T, Sixma TK, Jansen JH, van der Reijden BA. The ubiquitin ligase Triad1 inhibits myelopoiesis through UbcH7 and Ubc13 interacting domains. Leukemia. 2009 Aug;23(8):1480-9. Epub 2009 Apr 2. PMID:19340006 doi:leu200957
↑ Whitcomb EA, Dudek EJ, Liu Q, Taylor A. Novel control of S phase of the cell cycle by ubiquitin-conjugating enzyme H7. Mol Biol Cell. 2009 Jan;20(1):1-9. doi: 10.1091/mbc.E08-01-0036. Epub 2008 Oct, 22. PMID:18946090 doi:10.1091/mbc.E08-01-0036
↑ David Y, Ziv T, Admon A, Navon A. The E2 ubiquitin conjugating enzymes direct polyubiquitination to preferred lysines. J Biol Chem. 2010 Jan 8. PMID:20061386 doi:M109.089003
↑ Wenzel DM, Lissounov A, Brzovic PS, Klevit RE. UBCH7 reactivity profile reveals parkin and HHARI to be RING/HECT hybrids. Nature. 2011 Jun 2;474(7349):105-8. doi: 10.1038/nature09966. Epub 2011 May 1. PMID:21532592 doi:10.1038/nature09966
↑ Lin DY, Diao J, Chen J. Crystal structures of two bacterial HECT-like E3 ligases in complex with a human E2 reveal atomic details of pathogen-host interactions. Proc Natl Acad Sci U S A. 2012 Feb 7;109(6):1925-30. Epub 2012 Jan 23. PMID:22308380 doi:http://dx.doi.org/10.1073/pnas.1115025109

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3sy2"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the Salmonella E3 ubiquitin ligase SopA in complex with the human E2 UbcH7==
 <StructureSection load='3sy2' size='340' side='right' caption='[[3sy2]], [[Resolution|resolution]] 3.27&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3sy2]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_typhimurium Salmonella enterica subsp. enterica serovar typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3SY2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3SY2 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3sy2]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_typhimurium"_loeffler_1892 "bacillus typhimurium" loeffler 1892] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3SY2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3SY2 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">sopA, STM2066 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=90371 Salmonella enterica subsp. enterica serovar Typhimurium]), UBE2L3, UBCE7, UBCH7 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">sopA, STM2066 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=90371 "Bacillus typhimurium" Loeffler 1892]), UBE2L3, UBCE7, UBCH7 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] </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=3sy2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sy2 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3sy2 RCSB], [http://www.ebi.ac.uk/pdbsum/3sy2 PDBsum]</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=3sy2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sy2 OCA], [http://pdbe.org/3sy2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3sy2 RCSB], [http://www.ebi.ac.uk/pdbsum/3sy2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3sy2 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3sy2" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 26: / Line 28: @@
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Bacillus typhimurium loeffler 1892]]
-[[Category: Salmonella enterica subsp. enterica serovar typhimurium]]
+[[Category: Human]]
 [[Category: Ubiquitin--protein ligase]]
 [[Category: Chen, J]]

3sy2

From Proteopedia

Revision as of 11:05, 5 August 2016

Crystal structure of the Salmonella E3 ubiquitin ligase SopA in complex with the human E2 UbcH7

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox