8k5b: Difference between revisions
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==Cryo-EM structure of niacin bound human hydroxy-carboxylic acid receptor 2 (Local refinement)== | |||
<StructureSection load='8k5b' size='340' side='right'caption='[[8k5b]], [[Resolution|resolution]] 3.43Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8k5b]] is a 1 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=8K5B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8K5B 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]] 3.43Å</td></tr> | |||
[[Category: | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NIO:NICOTINIC+ACID'>NIO</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=8k5b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8k5b OCA], [https://pdbe.org/8k5b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8k5b RCSB], [https://www.ebi.ac.uk/pdbsum/8k5b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8k5b ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HCAR2_HUMAN HCAR2_HUMAN] Acts as a high affinity receptor for both nicotinic acid (also known as niacin) and (D)-beta-hydroxybutyrate and mediates increased adiponectin secretion and decreased lipolysis through G(i)-protein-mediated inhibition of adenylyl cyclase. This pharmacological effect requires nicotinic acid doses that are much higher than those provided by a normal diet. Mediates nicotinic acid-induced apoptosis in mature neutrophils. Receptor activation by nicotinic acid results in reduced cAMP levels which may affect activity of cAMP-dependent protein kinase A and phosphorylation of target proteins, leading to neutrophil apoptosis. The rank order of potency for the displacement of nicotinic acid binding is 5-methyl pyrazole-3-carboxylic acid = pyridine-3-acetic acid > acifran > 5-methyl nicotinic acid = acipimox >> nicotinuric acid = nicotinamide.<ref>PMID:17932499</ref> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Ishimoto N]] | |||
[[Category: Park JH]] | |||
[[Category: Park SY]] | |||
Latest revision as of 07:29, 22 November 2023
Cryo-EM structure of niacin bound human hydroxy-carboxylic acid receptor 2 (Local refinement)
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