4zir: Difference between revisions

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~~'''Unreleased structure'''~~

~~The entry~~ 4zir is ~~ON HOLD~~

==Crystal structure of EcfAA' heterodimer bound to AMPPNP==

== Structural highlights ==

<table><tr><td colspan='2'>[[4zir]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima_MSB8 Thermotoga maritima MSB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ZIR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4ZIR FirstGlance]. <br>

</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3Å</td></tr>

<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=4zir FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zir OCA], [https://pdbe.org/4zir PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4zir RCSB], [https://www.ebi.ac.uk/pdbsum/4zir PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4zir ProSAT]</span></td></tr>

</table>

== Function ==

[https://www.uniprot.org/uniprot/ECFA2_THEMA ECFA2_THEMA] ATP-binding (A) component of a common energy-coupling factor (ECF) ABC-transporter complex. Unlike classic ABC transporters this ECF transporter provides the energy necessary to transport a number of different substrates (Probable). Expression of the complex plus RibU in E.coli allows riboflavin uptake; uptake does not occur in the absence of RibU or the EcfA1A2T complex.<ref>PMID:23359690</ref>

== Publication Abstract from PubMed ==

ECF transporters are a family of active transporters for vitamins. They are composed of four subunits: a membrane-embedded substrate-binding subunit (EcfS), a transmembrane coupling subunit (EcfT) and two ATP-binding-cassette ATPases (EcfA and EcfA'). We have investigated the mechanism of the ECF transporter for riboflavin from the pathogen Listeria monocytogenes, LmECF-RibU. Using structural and biochemical approaches, we found that ATP binding to the EcfAA' ATPases drives a conformational change that dissociates the S subunit from the EcfAA'T ECF module. Upon release from the ECF module, the RibU S subunit then binds the riboflavin transport substrate. We also find that S subunits for distinct substrates compete for the ATP-bound state of the ECF module. Our results explain how ECF transporters capture the transport substrate and reproduce the in vivo observations on S-subunit competition for which the family was named.

~~Authors:~~ Karpowich, ~~N.K.~~, Cocco, N.~~, Song, J~~.M.~~, Wang, D~~.N.

ATP binding drives substrate capture in an ECF transporter by a release-and-catch mechanism.,Karpowich NK, Song JM, Cocco N, Wang DN Nat Struct Mol Biol. 2015 Jun 8. doi: 10.1038/nsmb.3040. PMID:26052893<ref>PMID:26052893</ref>

~~Description~~: ~~Crystal structure of EcfAA' heterodimer bound to AMPPNP~~

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

[[Category: ~~Unreleased~~ Structures]]

</div>

[[Category: Cocco, N]]

[[Category: ~~Song, J.M~~]]

== References ==

[[Category: ~~Wang, D.N~~]]

[[Category: ~~Karpowich, N.K~~]]

__TOC__

</StructureSection>

[[Category: Large Structures]]

[[Category: Thermotoga maritima MSB8]]

[[Category: Cocco N]]

[[Category: Karpowich NK]]

[[Category: Song JM]]

[[Category: Wang DN]]

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@@ Line 1: / Line 1: @@
-'''Unreleased structure'''
-The entry 4zir is ON HOLD
+==Crystal structure of EcfAA' heterodimer bound to AMPPNP==
+<StructureSection load='4zir' size='340' side='right'caption='[[4zir]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[4zir]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima_MSB8 Thermotoga maritima MSB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ZIR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4ZIR FirstGlance]. <br>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=4zir FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zir OCA], [https://pdbe.org/4zir PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4zir RCSB], [https://www.ebi.ac.uk/pdbsum/4zir PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4zir ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/ECFA2_THEMA ECFA2_THEMA] ATP-binding (A) component of a common energy-coupling factor (ECF) ABC-transporter complex. Unlike classic ABC transporters this ECF transporter provides the energy necessary to transport a number of different substrates (Probable). Expression of the complex plus RibU in E.coli allows riboflavin uptake; uptake does not occur in the absence of RibU or the EcfA1A2T complex.<ref>PMID:23359690</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+ECF transporters are a family of active transporters for vitamins. They are composed of four subunits: a membrane-embedded substrate-binding subunit (EcfS), a transmembrane coupling subunit (EcfT) and two ATP-binding-cassette ATPases (EcfA and EcfA'). We have investigated the mechanism of the ECF transporter for riboflavin from the pathogen Listeria monocytogenes, LmECF-RibU. Using structural and biochemical approaches, we found that ATP binding to the EcfAA' ATPases drives a conformational change that dissociates the S subunit from the EcfAA'T ECF module. Upon release from the ECF module, the RibU S subunit then binds the riboflavin transport substrate. We also find that S subunits for distinct substrates compete for the ATP-bound state of the ECF module. Our results explain how ECF transporters capture the transport substrate and reproduce the in vivo observations on S-subunit competition for which the family was named.
-Authors: Karpowich, N.K., Cocco, N., Song, J.M., Wang, D.N.
+ATP binding drives substrate capture in an ECF transporter by a release-and-catch mechanism.,Karpowich NK, Song JM, Cocco N, Wang DN Nat Struct Mol Biol. 2015 Jun 8. doi: 10.1038/nsmb.3040. PMID:26052893<ref>PMID:26052893</ref>
-Description: Crystal structure of EcfAA' heterodimer bound to AMPPNP
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
-[[Category: Cocco, N]]
+<div class="pdbe-citations 4zir" style="background-color:#fffaf0;"></div>
-[[Category: Song, J.M]]
+== References ==
-[[Category: Wang, D.N]]
+<references/>
-[[Category: Karpowich, N.K]]
+__TOC__
+</StructureSection>
+[[Category: Large Structures]]
+[[Category: Thermotoga maritima MSB8]]
+[[Category: Cocco N]]
+[[Category: Karpowich NK]]
+[[Category: Song JM]]
+[[Category: Wang DN]]