This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2a0l

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (08:14, 15 May 2024) (edit) (undo)
 
(11 intermediate revisions not shown.)
Line 1: Line 1:
-
{{Seed}}
 
-
[[Image:2a0l.png|left|200px]]
 
-
<!--
+
==Crystal structure of KvAP-33H1 Fv complex==
-
The line below this paragraph, containing "STRUCTURE_2a0l", creates the "Structure Box" on the page.
+
<StructureSection load='2a0l' size='340' side='right'caption='[[2a0l]], [[Resolution|resolution]] 3.90&Aring;' scene=''>
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
== Structural highlights ==
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
<table><tr><td colspan='2'>[[2a0l]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A0L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2A0L FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.9&#8491;</td></tr>
-
-->
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
-
{{STRUCTURE_2a0l| PDB=2a0l | SCENE= }}
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2a0l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a0l OCA], [https://pdbe.org/2a0l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2a0l RCSB], [https://www.ebi.ac.uk/pdbsum/2a0l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2a0l ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/KVAP_AERPE KVAP_AERPE] Mediates a strong voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient.
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a0/2a0l_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</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=2a0l ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Voltage-dependent ion channels gate open in response to changes in cell membrane voltage. This form of gating permits the propagation of action potentials. We present two structures of the voltage-dependent K(+) channel KvAP, in complex with monoclonal Fv fragments (3.9 A) and without antibody fragments (8 A). We also studied KvAP with disulfide cross-bridges in lipid membranes. Analyzing these data in the context of the crystal structure of Kv1.2 and EPR data on KvAP we reach the following conclusions: (i) KvAP is similar in structure to Kv1.2 with a very modest difference in the orientation of its voltage sensor; (ii) mAb fragments are not the source of non-native conformations of KvAP in crystal structures; (iii) because KvAP contains separate loosely adherent domains, a lipid membrane is required to maintain their correct relative orientations, and (iv) the model of KvAP is consistent with the proposal of voltage sensing through the movement of an arginine-containing helix-turn-helix element at the protein-lipid interface.
-
===Crystal structure of KvAP-33H1 Fv complex===
+
Structure of the KvAP voltage-dependent K+ channel and its dependence on the lipid membrane.,Lee SY, Lee A, Chen J, MacKinnon R Proc Natl Acad Sci U S A. 2005 Oct 25;102(43):15441-6. Epub 2005 Oct 13. PMID:16223877<ref>PMID:16223877</ref>
 +
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 +
</div>
 +
<div class="pdbe-citations 2a0l" style="background-color:#fffaf0;"></div>
-
<!--
+
==See Also==
-
The line below this paragraph, {{ABSTRACT_PUBMED_16223877}}, adds the Publication Abstract to the page
+
*[[Potassium channel 3D structures|Potassium channel 3D structures]]
-
(as it appears on PubMed at http://www.pubmed.gov), where 16223877 is the PubMed ID number.
+
== References ==
-
-->
+
<references/>
-
{{ABSTRACT_PUBMED_16223877}}
+
__TOC__
-
 
+
</StructureSection>
-
==About this Structure==
+
-
2A0L is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A0L OCA].
+
-
 
+
-
==Reference==
+
-
Structure of the KvAP voltage-dependent K+ channel and its dependence on the lipid membrane., Lee SY, Lee A, Chen J, MacKinnon R, Proc Natl Acad Sci U S A. 2005 Oct 25;102(43):15441-6. Epub 2005 Oct 13. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16223877 16223877]
+
[[Category: Aeropyrum pernix]]
[[Category: Aeropyrum pernix]]
 +
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
-
[[Category: Single protein]]
+
[[Category: Chen J]]
-
[[Category: Chen, J.]]
+
[[Category: Lee A]]
-
[[Category: Lee, A.]]
+
[[Category: Lee SY]]
-
[[Category: Lee, S Y.]]
+
[[Category: Mackinnon R]]
-
[[Category: Mackinnon, R.]]
+
-
[[Category: Ion channel]]
+
-
[[Category: K+ channel-fv complex]]
+
-
[[Category: Membrane protein]]
+
-
[[Category: Voltage sensor]]
+
-
[[Category: Voltage-dependent k+ channel]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 16:38:53 2008''
+

Current revision

Crystal structure of KvAP-33H1 Fv complex

PDB ID 2a0l

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2a0l"
Personal tools