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==Crystal structure of the human KLHL2 Kelch domain in complex with a WNK4 peptide==
==Crystal structure of the human KLHL2 Kelch domain in complex with a WNK4 peptide==
<StructureSection load='4chb' size='340' side='right' caption='[[4chb]], [[Resolution|resolution]] 1.56&Aring;' scene=''>
<StructureSection load='4chb' size='340' side='right'caption='[[4chb]], [[Resolution|resolution]] 1.56&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4chb]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CHB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4CHB FirstGlance]. <br>
<table><tr><td colspan='2'>[[4chb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CHB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4CHB FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=12P:DODECAETHYLENE+GLYCOL'>12P</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.56&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4ch9|4ch9]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=12P:DODECAETHYLENE+GLYCOL'>12P</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </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=4chb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4chb OCA], [https://pdbe.org/4chb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4chb RCSB], [https://www.ebi.ac.uk/pdbsum/4chb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4chb ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4chb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4chb OCA], [http://pdbe.org/4chb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4chb RCSB], [http://www.ebi.ac.uk/pdbsum/4chb PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4chb ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/WNK4_HUMAN WNK4_HUMAN]] Defects in WNK4 are a cause of pseudohypoaldosteronism type 2B (PHA2B) [MIM:[http://omim.org/entry/614491 614491]]. PHAII is an autosomal dominant disease characterized by severe hypertension, hyperkalemia, and sensitivity to thiazide diuretics which may result from a chloride shunt in the renal distal nephron.<ref>PMID:11498583</ref> 
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/KLHL2_HUMAN KLHL2_HUMAN]] May play a role in organizing the actin cytoskeleton of the brain cells. [[http://www.uniprot.org/uniprot/WNK4_HUMAN WNK4_HUMAN]] Serine/threonine kinase which plays an important role in the regulation of electrolyte homeostasis, cell signaling, survival and proliferation. Acts as an activator and inhibitor of sodium-coupled chloride cotransporters and potassium-coupled chloride cotransporters respectively. Activates SCNN1A, SCNN1B, SCNN1D, SGK1, TRPV5 and TRPV6. Regulates the activity of the thiazide-sensitive Na-Cl cotransporter, SLC12A3, by phosphorylation which appears to prevent membrane trafficking of SLC12A3. Also inhibits the renal K(+) channel, KCNJ1, via a kinase-independent mechanism by which it induces clearance of the protein from the cell surface by clathrin-dependent endocytosis. WNK4 appears to act as a molecular switch that can vary the balance between NaCl reabsorption and K(+) secretion to maintain integrated homeostasis. Phosphorylates NEDD4L.<ref>PMID:20525693</ref> 
[https://www.uniprot.org/uniprot/KLHL2_HUMAN KLHL2_HUMAN] May play a role in organizing the actin cytoskeleton of the brain cells.
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<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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==See Also==
==See Also==
*[[Kelch-like protein|Kelch-like protein]]
*[[Kelch-like protein 3D structures|Kelch-like protein 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Non-specific serine/threonine protein kinase]]
[[Category: Large Structures]]
[[Category: Alessi, D R]]
[[Category: Alessi DR]]
[[Category: Arrowsmith, C H]]
[[Category: Arrowsmith CH]]
[[Category: Bountra, C]]
[[Category: Bountra C]]
[[Category: Bullock, A]]
[[Category: Bullock A]]
[[Category: Canning, P]]
[[Category: Canning P]]
[[Category: Cooper, C D.O]]
[[Category: Cooper CDO]]
[[Category: Delft, F von]]
[[Category: Edwards AM]]
[[Category: Edwards, A M]]
[[Category: Kopec J]]
[[Category: Kopec, J]]
[[Category: Krojer T]]
[[Category: Krojer, T]]
[[Category: Kurz T]]
[[Category: Kurz, T]]
[[Category: Newman J]]
[[Category: Newman, J]]
[[Category: Schumacher FR]]
[[Category: Schumacher, F R]]
[[Category: Sorrell FJ]]
[[Category: Sorrell, F J]]
[[Category: Williams E]]
[[Category: Williams, E]]
[[Category: Von Delft F]]
[[Category: Adaptor protein]]
[[Category: Kelch repeat]]
[[Category: Klhl3]]
[[Category: Protein-binding]]
[[Category: Signaling protein-transferase complex]]
[[Category: Ubiquitin]]
[[Category: Wnk signalling pathway]]

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