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| | ==BamACDE complex, outer membrane beta-barrel assembly machinery (BAM) complex== | | ==BamACDE complex, outer membrane beta-barrel assembly machinery (BAM) complex== |
| - | <StructureSection load='5d0q' size='340' side='right' caption='[[5d0q]], [[Resolution|resolution]] 3.50Å' scene=''> | + | <StructureSection load='5d0q' size='340' side='right'caption='[[5d0q]], [[Resolution|resolution]] 3.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5d0q]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5D0Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5D0Q FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5d0q]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5D0Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5D0Q FirstGlance]. <br> |
| - | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5d0o|5d0o]]</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=5d0q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5d0q OCA], [https://pdbe.org/5d0q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5d0q RCSB], [https://www.ebi.ac.uk/pdbsum/5d0q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5d0q 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=5d0q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5d0q OCA], [http://pdbe.org/5d0q PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5d0q RCSB], [http://www.ebi.ac.uk/pdbsum/5d0q PDBsum]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/BAME_ECOLI BAME_ECOLI]] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Nonessential member of the complex that stabilizes the interaction between the essential proteins BamA and BamD. May modulate the conformation of BamA, likely through interactions with BamD.<ref>PMID:17404237</ref> <ref>PMID:20378773</ref> <ref>PMID:21823654</ref> <ref>PMID:22178970</ref> <ref>PMID:21207987</ref> <ref>PMID:21586578</ref> [[http://www.uniprot.org/uniprot/BAMA_ECOLI BAMA_ECOLI]] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Constitutes, with BamD, the core component of the assembly machinery.<ref>PMID:15951436</ref> <ref>PMID:16102012</ref> <ref>PMID:16824102</ref> <ref>PMID:20378773</ref> <ref>PMID:21823654</ref> [[http://www.uniprot.org/uniprot/BAMD_ECOLI BAMD_ECOLI]] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Constitutes, with BamA, the core component of the assembly machinery. Probably involved in transient protein interactions.[HAMAP-Rule:MF_00922]<ref>PMID:16824102</ref> <ref>PMID:20378773</ref> <ref>PMID:21586578</ref> <ref>PMID:21823654</ref> <ref>PMID:22281737</ref> [[http://www.uniprot.org/uniprot/BAMC_ECOLI BAMC_ECOLI]] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Nonessential member of the complex that stabilizes the interaction between the essential proteins BamA and BamD.[HAMAP-Rule:MF_00924]<ref>PMID:20378773</ref> <ref>PMID:21823654</ref> <ref>PMID:22178970</ref> | + | [https://www.uniprot.org/uniprot/BAMA_ECOLI BAMA_ECOLI] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Constitutes, with BamD, the core component of the assembly machinery.<ref>PMID:15951436</ref> <ref>PMID:16102012</ref> <ref>PMID:16824102</ref> <ref>PMID:20378773</ref> <ref>PMID:21823654</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 5d0q" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 5d0q" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Bam complex 3D structures|Bam complex 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Dong, C]] | + | [[Category: Escherichia coli]] |
| - | [[Category: Dong, H]] | + | [[Category: Large Structures]] |
| - | [[Category: Gu, Y]] | + | [[Category: Dong C]] |
| - | [[Category: Paterson, N]] | + | [[Category: Dong H]] |
| - | [[Category: Wang, W]] | + | [[Category: Gu Y]] |
| - | [[Category: Zeng, Y]]
| + | [[Category: Paterson N]] |
| - | [[Category: E coli]] | + | [[Category: Wang W]] |
| - | [[Category: Outer membrane beta-barrel assembly machinery complex]] | + | [[Category: Zeng Y]] |
| - | [[Category: Outer membrane biogenesis]] | + | |
| - | [[Category: Outer membrane insertion]]
| + | |
| - | [[Category: Protein transport]]
| + | |
| Structural highlights
Function
BAMA_ECOLI Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Constitutes, with BamD, the core component of the assembly machinery.[1] [2] [3] [4] [5]
Publication Abstract from PubMed
All Gram-negative bacteria, mitochondria and chloroplasts have outer membrane proteins (OMPs) that perform many fundamental biological processes. The OMPs in Gram-negative bacteria are inserted and folded into the outer membrane by the beta-barrel assembly machinery (BAM). The mechanism involved is poorly understood, owing to the absence of a structure of the entire BAM complex. Here we report two crystal structures of the Escherichia coli BAM complex in two distinct states: an inward-open state and a lateral-open state. Our structures reveal that the five polypeptide transport-associated domains of BamA form a ring architecture with four associated lipoproteins, BamB-BamE, in the periplasm. Our structural, functional studies and molecular dynamics simulations indicate that these subunits rotate with respect to the integral membrane beta-barrel of BamA to induce movement of the beta-strands of the barrel and promote insertion of the nascent OMP.
Structural basis of outer membrane protein insertion by the BAM complex.,Gu Y, Li H, Dong H, Zeng Y, Zhang Z, Paterson NG, Stansfeld PJ, Wang Z, Zhang Y, Wang W, Dong C Nature. 2016 Mar 3;531(7592):64-9. doi: 10.1038/nature17199. Epub 2016 Feb 22. PMID:26901871[6]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Doerrler WT, Raetz CR. Loss of outer membrane proteins without inhibition of lipid export in an Escherichia coli YaeT mutant. J Biol Chem. 2005 Jul 29;280(30):27679-87. Epub 2005 Jun 10. PMID:15951436 doi:http://dx.doi.org/M504796200
- ↑ Werner J, Misra R. YaeT (Omp85) affects the assembly of lipid-dependent and lipid-independent outer membrane proteins of Escherichia coli. Mol Microbiol. 2005 Sep;57(5):1450-9. PMID:16102012 doi:http://dx.doi.org/MMI4775
- ↑ Malinverni JC, Werner J, Kim S, Sklar JG, Kahne D, Misra R, Silhavy TJ. YfiO stabilizes the YaeT complex and is essential for outer membrane protein assembly in Escherichia coli. Mol Microbiol. 2006 Jul;61(1):151-64. PMID:16824102 doi:http://dx.doi.org/10.1111/j.1365-2958.2006.05211.x
- ↑ Hagan CL, Kim S, Kahne D. Reconstitution of outer membrane protein assembly from purified components. Science. 2010 May 14;328(5980):890-2. doi: 10.1126/science.1188919. Epub 2010 Apr, 8. PMID:20378773 doi:10.1126/science.1188919
- ↑ Hagan CL, Kahne D. The reconstituted Escherichia coli Bam complex catalyzes multiple rounds of beta-barrel assembly. Biochemistry. 2011 Sep 6;50(35):7444-6. doi: 10.1021/bi2010784. Epub 2011 Aug 11. PMID:21823654 doi:10.1021/bi2010784
- ↑ Gu Y, Li H, Dong H, Zeng Y, Zhang Z, Paterson NG, Stansfeld PJ, Wang Z, Zhang Y, Wang W, Dong C. Structural basis of outer membrane protein insertion by the BAM complex. Nature. 2016 Mar 3;531(7592):64-9. doi: 10.1038/nature17199. Epub 2016 Feb 22. PMID:26901871 doi:http://dx.doi.org/10.1038/nature17199
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