3tif

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<StructureSection load='3tif' size='340' side='right'caption='[[3tif]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
<StructureSection load='3tif' size='340' side='right'caption='[[3tif]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3tif]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Metja Metja]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TIF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TIF FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3tif]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii_DSM_2661 Methanocaldococcus jannaschii DSM 2661]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TIF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TIF FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PI:HYDROGENPHOSPHATE+ION'>PI</scene></td></tr>
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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]] 1.7995&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1l2t|1l2t]]</div></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=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PI:HYDROGENPHOSPHATE+ION'>PI</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MJ0796 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=243232 METJA])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3tif FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tif OCA], [https://pdbe.org/3tif PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3tif RCSB], [https://www.ebi.ac.uk/pdbsum/3tif PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3tif ProSAT]</span></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=3tif FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tif OCA], [https://pdbe.org/3tif PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3tif RCSB], [https://www.ebi.ac.uk/pdbsum/3tif PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3tif ProSAT]</span></td></tr>
</table>
</table>
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<div style="background-color:#fffaf0;">
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== Function ==
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== Publication Abstract from PubMed ==
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[https://www.uniprot.org/uniprot/Y796_METJA Y796_METJA]
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Most ATP binding cassette (ABC) proteins are pumps that transport substrates across biological membranes using the energy of ATP hydrolysis. Functional ABC proteins have two nucleotide-binding domains (NBDs) that bind and hydrolyze ATP, but the molecular mechanism of nucleotide hydrolysis is unresolved. This is due in part to the limited kinetic information on NBD association and dissociation. Here, we show dimerization of a catalytically active NBD and follow in real time the association and dissociation of NBDs from the changes in fluorescence emission of a tryptophan strategically located at the center of the dimer interface. Spectroscopic and structural studies demonstrated that the tryptophan can be used as dimerization probe, and we showed that under hydrolysis conditions (millimolar MgATP), not only the dimer dissociation rate increases, but also the dimerization rate. Neither dimer formation or dissociation are clearly favored, and the end result is a dynamic equilibrium where the concentrations of monomer and dimer are very similar. We proposed that based on their variable rates of hydrolysis, the rate-limiting step of the hydrolysis cycle may differ among full-length ABC proteins.
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Kinetics of the association/dissociation cycle of an ATP-binding cassette nucleotide-binding domain.,Zoghbi ME, Fuson KL, Sutton RB, Altenberg GA J Biol Chem. 2012 Feb 3;287(6):4157-64. Epub 2011 Dec 9. PMID:22158619<ref>PMID:22158619</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 3tif" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Metja]]
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[[Category: Methanocaldococcus jannaschii DSM 2661]]
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[[Category: Sutton, R B]]
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[[Category: Sutton RB]]
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[[Category: Abc transporter atpase]]
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[[Category: Atp binding]]
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[[Category: Nucleotide-binding domain]]
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[[Category: Rna binding protein]]
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Current revision

Dimeric structure of a post-hydrolysis state of the ATP-binding cassette MJ0796 bound to ADP and Pi

PDB ID 3tif

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