6pa0: Difference between revisions

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

~~The entry~~ 6pa0 is ~~ON HOLD until Paper~~ Publication

==Structure of the G77A mutant in Sodium Chloride==

== Structural highlights ==

<table><tr><td colspan='2'>[[6pa0]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6PA0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6PA0 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]] 2.05Å</td></tr>

<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DGA:DIACYL+GLYCEROL'>DGA</scene>, <scene name='pdbligand=F09:NONAN-1-OL'>F09</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=6pa0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6pa0 OCA], [https://pdbe.org/6pa0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6pa0 RCSB], [https://www.ebi.ac.uk/pdbsum/6pa0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6pa0 ProSAT]</span></td></tr>

</table>

== Function ==

[https://www.uniprot.org/uniprot/KCSA_STRLI KCSA_STRLI] Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+).<ref>PMID:7489706</ref>

== Publication Abstract from PubMed ==

Here, we present the atomic resolution crystallographic structure, the function, and the ion-binding properties of the KcsA mutants, G77A and G77C, that stabilize the 2,4-ion-bound configuration (i.e., water, K(+), water, K(+)-ion-bound configuration) of the K(+) channel's selectivity filter. A full functional and thermodynamic characterization of the G77A mutant revealed wild-type-like ion selectivity and apparent K(+)-binding affinity, in addition to showing a lack of C-type inactivation gating and a marked reduction in its single-channel conductance. These structures validate, from a structural point of view, the notion that 2 isoenergetic ion-bound configurations coexist within a K(+) channel's selectivity filter, which fully agrees with the water-K(+)-ion-coupled transport detected by streaming potential measurements.

~~Authors: Cuello~~, L.G., ~~Guan, L~~.

Structure, function, and ion-binding properties of a K(+) channel stabilized in the 2,4-ion-bound configuration.,Tilegenova C, Cortes DM, Jahovic N, Hardy E, Hariharan P, Guan L, Cuello LG Proc Natl Acad Sci U S A. 2019 Aug 6. pii: 1901888116. doi:, 10.1073/pnas.1901888116. PMID:31387976<ref>PMID:31387976</ref>

~~Description~~: ~~Structure~~ of ~~the G77A mutant in Sodium Chloride~~

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

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

</div>

[[Category: ~~Guan, L~~]]

[[Category: Cuello, L.G]]

==See Also==

*[[Antibody 3D structures|Antibody 3D structures]]

*[[Potassium channel 3D structures|Potassium channel 3D structures]]

*[[3D structures of non-human antibody|3D structures of non-human antibody]]

== References ==

__TOC__

</StructureSection>

[[Category: Large Structures]]

[[Category: Mus musculus]]

[[Category: Streptomyces lividans]]

[[Category: Cuello LG]]

[[Category: Guan L]]

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@@ Line 1: / Line 1: @@
-'''Unreleased structure'''
-The entry 6pa0 is ON HOLD  until Paper Publication
+==Structure of the G77A mutant in Sodium Chloride==
+<StructureSection load='6pa0' size='340' side='right'caption='[[6pa0]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[6pa0]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6PA0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6PA0 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]] 2.05&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DGA:DIACYL+GLYCEROL'>DGA</scene>, <scene name='pdbligand=F09:NONAN-1-OL'>F09</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=6pa0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6pa0 OCA], [https://pdbe.org/6pa0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6pa0 RCSB], [https://www.ebi.ac.uk/pdbsum/6pa0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6pa0 ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/KCSA_STRLI KCSA_STRLI] Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+).<ref>PMID:7489706</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Here, we present the atomic resolution crystallographic structure, the function, and the ion-binding properties of the KcsA mutants, G77A and G77C, that stabilize the 2,4-ion-bound configuration (i.e., water, K(+), water, K(+)-ion-bound configuration) of the K(+) channel's selectivity filter. A full functional and thermodynamic characterization of the G77A mutant revealed wild-type-like ion selectivity and apparent K(+)-binding affinity, in addition to showing a lack of C-type inactivation gating and a marked reduction in its single-channel conductance. These structures validate, from a structural point of view, the notion that 2 isoenergetic ion-bound configurations coexist within a K(+) channel's selectivity filter, which fully agrees with the water-K(+)-ion-coupled transport detected by streaming potential measurements.
-Authors: Cuello, L.G., Guan, L.
+Structure, function, and ion-binding properties of a K(+) channel stabilized in the 2,4-ion-bound configuration.,Tilegenova C, Cortes DM, Jahovic N, Hardy E, Hariharan P, Guan L, Cuello LG Proc Natl Acad Sci U S A. 2019 Aug 6. pii: 1901888116. doi:, 10.1073/pnas.1901888116. PMID:31387976<ref>PMID:31387976</ref>
-Description: Structure of the G77A mutant in Sodium Chloride
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
-[[Category: Guan, L]]
+<div class="pdbe-citations 6pa0" style="background-color:#fffaf0;"></div>
-[[Category: Cuello, L.G]]
+==See Also==
+*[[Antibody 3D structures|Antibody 3D structures]]
+*[[Potassium channel 3D structures|Potassium channel 3D structures]]
+*[[3D structures of non-human antibody|3D structures of non-human antibody]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Large Structures]]
+[[Category: Mus musculus]]
+[[Category: Streptomyces lividans]]
+[[Category: Cuello LG]]
+[[Category: Guan L]]