View source for 7xbd


==Cryo-EM structure of human galanin receptor 2==
<StructureSection load='7xbd' size='340' side='right'caption='[[7xbd]], [[Resolution|resolution]] 3.11&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7xbd]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] 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=7XBD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7XBD FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.11&#8491;</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=7xbd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xbd OCA], [https://pdbe.org/7xbd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xbd RCSB], [https://www.ebi.ac.uk/pdbsum/7xbd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xbd ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/GALA_HUMAN GALA_HUMAN] The disease is caused by variants affecting the gene represented in this entry.
== Function ==
[https://www.uniprot.org/uniprot/GALA_HUMAN GALA_HUMAN] Endocrine hormone of the central and peripheral nervous systems that binds and activates the G protein-coupled receptors GALR1, GALR2, and GALR3. This small neuropeptide may regulate diverse physiologic functions including contraction of smooth muscle of the gastrointestinal and genitourinary tract, growth hormone and insulin release and adrenal secretion.<ref>PMID:1370155</ref> <ref>PMID:1722333</ref> <ref>PMID:25691535</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Galanin is a neuropeptide expressed in the central and peripheral nervous systems, where it regulates various processes including neuroendocrine release, cognition, and nerve regeneration. Three G-protein coupled receptors (GPCRs) for galanin have been discovered, which is the focus of efforts to treat diseases including Alzheimer's disease, anxiety, and addiction. To understand the basis of the ligand preferences of the receptors and to assist structure-based drug design, we used cryo-electron microscopy (cryo-EM) to solve the molecular structure of GALR2 bound to galanin and a cognate heterotrimeric G-protein, providing a molecular view of the neuropeptide binding site. Mutant proteins were assayed to help reveal the basis of ligand specificity, and structural comparison between the activated GALR2 and inactive hbeta2AR was used to relate galanin binding to the movements of transmembrane (TM) helices and the G-protein interface.

Structure of the human galanin receptor 2 bound to galanin and Gq reveals the basis of ligand specificity and how binding affects the G-protein interface.,Heo Y, Ishimoto N, Jeon YE, Yun JH, Ohki M, Anraku Y, Sasaki M, Kita S, Fukuhara H, Ikuta T, Kawakami K, Inoue A, Maenaka K, Tame JRH, Lee W, Park SY PLoS Biol. 2022 Aug 1;20(8):e3001714. doi: 10.1371/journal.pbio.3001714. , eCollection 2022 Aug. PMID:35913979<ref>PMID:35913979</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7xbd" style="background-color:#fffaf0;"></div>

==See Also==
*[[Transducin 3D structures|Transducin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Ishimoto N]]
[[Category: Kita S]]
[[Category: Park SY]]