1ek9: Difference between revisions

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==2.1A X-RAY STRUCTURE OF TOLC: AN INTEGRAL OUTER MEMBRANE PROTEIN AND EFFLUX PUMP COMPONENT FROM ESCHERICHIA COLI==
The line below this paragraph, containing "STRUCTURE_1ek9", creates the "Structure Box" on the page.
<StructureSection load='1ek9' size='340' side='right'caption='[[1ek9]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1ek9]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The November 2007 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Multidrug Resistance Transporters''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2007_11 10.2210/rcsb_pdb/mom_2007_11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EK9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EK9 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
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<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>
{{STRUCTURE_1ek9|  PDB=1ek9  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ek9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ek9 OCA], [https://pdbe.org/1ek9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ek9 RCSB], [https://www.ebi.ac.uk/pdbsum/1ek9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ek9 ProSAT]</span></td></tr>
 
</table>
===2.1A X-RAY STRUCTURE OF TOLC: AN INTEGRAL OUTER MEMBRANE PROTEIN AND EFFLUX PUMP COMPONENT FROM ESCHERICHIA COLI===
== Function ==
 
[https://www.uniprot.org/uniprot/TOLC_ECOLI TOLC_ECOLI] Outer membrane channel, which is required for the function of several efflux systems such as AcrAB-TolC, AcrEF-TolC, EmrAB-TolC and MacAB-TolC. These systems are involved in export of antibiotics and other toxic compounds from the cell. TolC is also involved in import of colicin E1 into the cells.<ref>PMID:6337123</ref> <ref>PMID:11274125</ref> <ref>PMID:15228545</ref> <ref>PMID:18955484</ref> <ref>PMID:23176499</ref>
 
== Evolutionary Conservation ==
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ek/1ek9_consurf.spt"</scriptWhenChecked>
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==About this Structure==
  </jmolCheckbox>
1EK9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Additional information on 1EK9 is available in a page on [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb95_1.html Multidrug Resistance Transporters] at the RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EK9 OCA].  
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ek9 ConSurf].
 
<div style="clear:both"></div>
==Reference==
== References ==
Crystal structure of the bacterial membrane protein TolC central to multidrug efflux and protein export., Koronakis V, Sharff A, Koronakis E, Luisi B, Hughes C, Nature. 2000 Jun 22;405(6789):914-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10879525 10879525]
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Multidrug Resistance Transporters]]
[[Category: Multidrug Resistance Transporters]]
[[Category: Single protein]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Hughes, C.]]
[[Category: Hughes C]]
[[Category: Koronakis, E.]]
[[Category: Koronakis E]]
[[Category: Koronakis, V.]]
[[Category: Koronakis V]]
[[Category: Luisi, B.]]
[[Category: Luisi B]]
[[Category: Sharff, A J.]]
[[Category: Sharff AJ]]
[[Category: Alpha helical barrel]]
[[Category: Beta barrel]]
[[Category: Integral membrane protein]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 23 10:50:04 2008''

Latest revision as of 13:03, 20 March 2024

2.1A X-RAY STRUCTURE OF TOLC: AN INTEGRAL OUTER MEMBRANE PROTEIN AND EFFLUX PUMP COMPONENT FROM ESCHERICHIA COLI2.1A X-RAY STRUCTURE OF TOLC: AN INTEGRAL OUTER MEMBRANE PROTEIN AND EFFLUX PUMP COMPONENT FROM ESCHERICHIA COLI

Structural highlights

1ek9 is a 3 chain structure with sequence from Escherichia coli. The November 2007 RCSB PDB Molecule of the Month feature on Multidrug Resistance Transporters by David S. Goodsell is 10.2210/rcsb_pdb/mom_2007_11. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.1Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

TOLC_ECOLI Outer membrane channel, which is required for the function of several efflux systems such as AcrAB-TolC, AcrEF-TolC, EmrAB-TolC and MacAB-TolC. These systems are involved in export of antibiotics and other toxic compounds from the cell. TolC is also involved in import of colicin E1 into the cells.[1] [2] [3] [4] [5]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

  1. ↑ Morona R, Manning PA, Reeves P. Identification and characterization of the TolC protein, an outer membrane protein from Escherichia coli. J Bacteriol. 1983 Feb;153(2):693-9. PMID:6337123
  2. ↑ Kobayashi K, Tsukagoshi N, Aono R. Suppression of hypersensitivity of Escherichia coli acrB mutant to organic solvents by integrational activation of the acrEF operon with the IS1 or IS2 element. J Bacteriol. 2001 Apr;183(8):2646-53. PMID:11274125 doi:http://dx.doi.org/10.1128/JB.183.8.2646-2653.2001
  3. ↑ Touze T, Eswaran J, Bokma E, Koronakis E, Hughes C, Koronakis V. Interactions underlying assembly of the Escherichia coli AcrAB-TolC multidrug efflux system. Mol Microbiol. 2004 Jul;53(2):697-706. PMID:15228545 doi:http://dx.doi.org/10.1111/j.1365-2958.2004.04158.x
  4. ↑ Lin HT, Bavro VN, Barrera NP, Frankish HM, Velamakanni S, van Veen HW, Robinson CV, Borges-Walmsley MI, Walmsley AR. MacB ABC transporter is a dimer whose ATPase activity and macrolide-binding capacity are regulated by the membrane fusion protein MacA. J Biol Chem. 2009 Jan 9;284(2):1145-54. doi: 10.1074/jbc.M806964200. Epub 2008, Oct 27. PMID:18955484 doi:http://dx.doi.org/10.1074/jbc.M806964200
  5. ↑ Zakharov SD, Sharma O, Zhalnina M, Yamashita E, Cramer WA. Pathways of colicin import: utilization of BtuB, OmpF porin and the TolC drug-export protein. Biochem Soc Trans. 2012 Dec 1;40(6):1463-8. doi: 10.1042/BST20120211. PMID:23176499 doi:http://dx.doi.org/10.1042/BST20120211

1ek9, resolution 2.10Å

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