7wf9
From Proteopedia
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[7wf9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7WF9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7WF9 FirstGlance]. <br> | <table><tr><td colspan='2'>[[7wf9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7WF9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7WF9 FirstGlance]. <br> | ||
| - | </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=7wf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7wf9 OCA], [https://pdbe.org/7wf9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7wf9 RCSB], [https://www.ebi.ac.uk/pdbsum/7wf9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7wf9 ProSAT]</span></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]] 2.55Å</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=7wf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7wf9 OCA], [https://pdbe.org/7wf9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7wf9 RCSB], [https://www.ebi.ac.uk/pdbsum/7wf9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7wf9 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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As a subgroup of sorting nexins (SNXs) that contain regulator of G protein signaling homology (RH) domain, SNX-RH proteins, including SNX13, SNX14 and SNX25, were proposed to play bifunctional roles in protein sorting and GPCR signaling regulation. However, mechanistic details of SNX-RH proteins functioning via RH domain remain to be illustrated. Here, we delineate crystal structures of the RH domains of SNX13 and SNX25, revealing a homodimer of SNX13 RH domain mediated by unique extended alpha4 and alpha5 helices, and a thiol modulated homodimer of SNX25-RH triggered by a unique cysteine on alpha6 helix. Further studies showed that RH domains of SNX-RH do not possess binding capacity toward Galpha subunits, owing to the lack of critical residues for interaction. Thus, this study identifies a group of novel non-canonical RH domains that can act as a dimerization module in sorting nexins, which provides structural basis for mechanism studies on SNX-RH protein functions. | As a subgroup of sorting nexins (SNXs) that contain regulator of G protein signaling homology (RH) domain, SNX-RH proteins, including SNX13, SNX14 and SNX25, were proposed to play bifunctional roles in protein sorting and GPCR signaling regulation. However, mechanistic details of SNX-RH proteins functioning via RH domain remain to be illustrated. Here, we delineate crystal structures of the RH domains of SNX13 and SNX25, revealing a homodimer of SNX13 RH domain mediated by unique extended alpha4 and alpha5 helices, and a thiol modulated homodimer of SNX25-RH triggered by a unique cysteine on alpha6 helix. Further studies showed that RH domains of SNX-RH do not possess binding capacity toward Galpha subunits, owing to the lack of critical residues for interaction. Thus, this study identifies a group of novel non-canonical RH domains that can act as a dimerization module in sorting nexins, which provides structural basis for mechanism studies on SNX-RH protein functions. | ||
| - | Structural Studies Reveal Unique Non-canonical Regulators of G Protein Signaling Homology (RH) Domains in Sorting Nexins.,Zhang Y, Chen R, Dong Y, Zhu J, Su K, Liu J, Xu J J Mol Biol. 2022 | + | Structural Studies Reveal Unique Non-canonical Regulators of G Protein Signaling Homology (RH) Domains in Sorting Nexins.,Zhang Y, Chen R, Dong Y, Zhu J, Su K, Liu J, Xu J J Mol Biol. 2022 Nov 15;434(21):167823. doi: 10.1016/j.jmb.2022.167823. Epub 2022 , Sep 11. PMID:36103920<ref>PMID:36103920</ref> |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 7wf9" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 7wf9" style="background-color:#fffaf0;"></div> | ||
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| + | ==See Also== | ||
| + | *[[Sorting nexin 3D structures|Sorting nexin 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Current revision
Crystal structure of mouse SNX25 RGS domain in space group P41212
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Categories: Large Structures | Mus musculus | Liu J | Xu J | Zhang Y
