4d2e: Difference between revisions
New page: '''Unreleased structure''' The entry 4d2e is ON HOLD until sometime in the future Authors: Li, D., Boland, C., Caffrey, M. Description: Crystal structure of an integral membrane kinase... |
No edit summary |
||
| (10 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==Crystal structure of an integral membrane kinase - v2.3== | |||
<StructureSection load='4d2e' size='340' side='right'caption='[[4d2e]], [[Resolution|resolution]] 2.28Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4d2e]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D2E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4D2E 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]] 2.28Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=78M:(2S)-2,3-DIHYDROXYPROPYL(7Z)-PENTADEC-7-ENOATE'>78M</scene>, <scene name='pdbligand=78N:(2R)-2,3-DIHYDROXYPROPYL(7Z)-PENTADEC-7-ENOATE'>78N</scene>, <scene name='pdbligand=FLC:CITRATE+ANION'>FLC</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=4d2e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d2e OCA], [https://pdbe.org/4d2e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4d2e RCSB], [https://www.ebi.ac.uk/pdbsum/4d2e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4d2e ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/KDGL_ECOLI KDGL_ECOLI] Recycling of diacylglycerol produced during the turnover of membrane phospholipid. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Membrane proteins are key elements in cell physiology and drug targeting, but getting a high-resolution structure by crystallographic means is still enormously challenging. Novel strategies are in big demand to facilitate the structure determination process that will ultimately hasten the day when sequence information alone can provide a three-dimensional model. Cell-free or in vitro expression enables rapid access to large quantities of high-quality membrane proteins suitable for an array of applications. Despite its impressive efficiency, to date only two membrane proteins produced by the in vitro approach have yielded crystal structures. Here, we have analysed synergies of cell-free expression and crystallisation in lipid mesophases for generating an X-ray structure of the integral membrane enzyme diacylglycerol kinase to 2.28-A resolution. The quality of cellular and cell-free-expressed kinase samples has been evaluated systematically by comparing (1) spectroscopic properties, (2) purity and oligomer formation, (3) lipid content and (4) functionality. DgkA is the first membrane enzyme crystallised based on cell-free expression. The study provides a basic standard for the crystallisation of cell-free-expressed membrane proteins and the methods detailed here should prove generally useful and contribute to accelerating the pace at which membrane protein structures are solved. | |||
Cell-free expression and in meso crystallisation of an integral membrane kinase for structure determination.,Boland C, Li D, Shah ST, Haberstock S, Dotsch V, Bernhard F, Caffrey M Cell Mol Life Sci. 2014 Jul 11. PMID:25012698<ref>PMID:25012698</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4d2e" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Diacylglycerol kinase 3D structures|Diacylglycerol kinase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia coli K-12]] | |||
[[Category: Large Structures]] | |||
[[Category: Boland C]] | |||
[[Category: Caffrey M]] | |||
[[Category: Li D]] | |||
Latest revision as of 15:19, 20 December 2023
Crystal structure of an integral membrane kinase - v2.3Crystal structure of an integral membrane kinase - v2.3
Structural highlights
FunctionKDGL_ECOLI Recycling of diacylglycerol produced during the turnover of membrane phospholipid. Publication Abstract from PubMedMembrane proteins are key elements in cell physiology and drug targeting, but getting a high-resolution structure by crystallographic means is still enormously challenging. Novel strategies are in big demand to facilitate the structure determination process that will ultimately hasten the day when sequence information alone can provide a three-dimensional model. Cell-free or in vitro expression enables rapid access to large quantities of high-quality membrane proteins suitable for an array of applications. Despite its impressive efficiency, to date only two membrane proteins produced by the in vitro approach have yielded crystal structures. Here, we have analysed synergies of cell-free expression and crystallisation in lipid mesophases for generating an X-ray structure of the integral membrane enzyme diacylglycerol kinase to 2.28-A resolution. The quality of cellular and cell-free-expressed kinase samples has been evaluated systematically by comparing (1) spectroscopic properties, (2) purity and oligomer formation, (3) lipid content and (4) functionality. DgkA is the first membrane enzyme crystallised based on cell-free expression. The study provides a basic standard for the crystallisation of cell-free-expressed membrane proteins and the methods detailed here should prove generally useful and contribute to accelerating the pace at which membrane protein structures are solved. Cell-free expression and in meso crystallisation of an integral membrane kinase for structure determination.,Boland C, Li D, Shah ST, Haberstock S, Dotsch V, Bernhard F, Caffrey M Cell Mol Life Sci. 2014 Jul 11. PMID:25012698[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||