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- PDB-7zly: Crystal structure of human GPCR Niacin receptor (HCA2) expressed ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7zly | ||||||||||||||||||
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Title | Crystal structure of human GPCR Niacin receptor (HCA2) expressed from Spodoptera frugiperda | ||||||||||||||||||
![]() | Hydroxycarboxylic acid receptor 2,Soluble cytochrome b562 | ||||||||||||||||||
![]() | MEMBRANE PROTEIN / Niacin receptor / hydroxycarboxylic acid receptor 2 / HCA2 / GPCR / membrane protein structure | ||||||||||||||||||
Function / homology | ![]() nicotinic acid receptor activity / Hydroxycarboxylic acid-binding receptors / neutrophil apoptotic process / positive regulation of neutrophil apoptotic process / Class A/1 (Rhodopsin-like receptors) / positive regulation of adiponectin secretion / negative regulation of lipid catabolic process / electron transport chain / cell junction / G alpha (i) signalling events ...nicotinic acid receptor activity / Hydroxycarboxylic acid-binding receptors / neutrophil apoptotic process / positive regulation of neutrophil apoptotic process / Class A/1 (Rhodopsin-like receptors) / positive regulation of adiponectin secretion / negative regulation of lipid catabolic process / electron transport chain / cell junction / G alpha (i) signalling events / periplasmic space / electron transfer activity / iron ion binding / G protein-coupled receptor signaling pathway / heme binding / plasma membrane Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||||||||
Method | ![]() ![]() ![]() | ||||||||||||||||||
![]() | Yang, Y. / Kang, H.J. / Gao, R.G. / Wang, J.J. / FiBerto, J.F. / Wu, L.J. / Tong, J.H. / Han, G.W. / Qu, L. / Wu, Y.R. ...Yang, Y. / Kang, H.J. / Gao, R.G. / Wang, J.J. / FiBerto, J.F. / Wu, L.J. / Tong, J.H. / Han, G.W. / Qu, L. / Wu, Y.R. / Pileski, R. / Li, X.M. / Zhang, X.C. / Zhao, S.W. / Kenakin, T. / Wang, Q. / Stevens, R.C. / Peng, W. / Roth, B.L. / Rao, Z.H. / Liu, Z.J. | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural insights into the human niacin receptor HCA2-G signalling complex. Authors: Yang Yang / Hye Jin Kang / Ruogu Gao / Jingjing Wang / Gye Won Han / Jeffrey F DiBerto / Lijie Wu / Jiahui Tong / Lu Qu / Yiran Wu / Ryan Pileski / Xuemei Li / Xuejun Cai Zhang / Suwen Zhao ...Authors: Yang Yang / Hye Jin Kang / Ruogu Gao / Jingjing Wang / Gye Won Han / Jeffrey F DiBerto / Lijie Wu / Jiahui Tong / Lu Qu / Yiran Wu / Ryan Pileski / Xuemei Li / Xuejun Cai Zhang / Suwen Zhao / Terry Kenakin / Quan Wang / Raymond C Stevens / Wei Peng / Bryan L Roth / Zihe Rao / Zhi-Jie Liu / ![]() ![]() ![]() Abstract: The hydroxycarboxylic acid receptor 2 (HCA2) agonist niacin has been used as treatment for dyslipidemia for several decades albeit with skin flushing as a common side-effect in treated individuals. ...The hydroxycarboxylic acid receptor 2 (HCA2) agonist niacin has been used as treatment for dyslipidemia for several decades albeit with skin flushing as a common side-effect in treated individuals. Extensive efforts have been made to identify HCA2 targeting lipid lowering agents with fewer adverse effects, despite little being known about the molecular basis of HCA2 mediated signalling. Here, we report the cryo-electron microscopy structure of the HCA2-G signalling complex with the potent agonist MK-6892, along with crystal structures of HCA2 in inactive state. These structures, together with comprehensive pharmacological analysis, reveal the ligand binding mode and activation and signalling mechanisms of HCA2. This study elucidates the structural determinants essential for HCA2 mediated signalling and provides insights into ligand discovery for HCA2 and related receptors. | ||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 175.4 KB | Display | ![]() |
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PDB format | ![]() | 138.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 16 KB | Display | |
Data in CIF | ![]() | 20.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7xk2C ![]() 7zl9C ![]() 4pxzS S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 49817.527 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: HCAR2, GPR109A, HCA2, HM74A, NIACR1, cybC / Production host: ![]() ![]() | ||||
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#2: Chemical | ChemComp-OLA / #3: Chemical | ChemComp-OLC / ( | Has ligand of interest | Y | |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.88 Å3/Da / Density % sol: 57.37 % |
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Crystal grow | Temperature: 293 K / Method: lipidic cubic phase Details: 100mM pH5.4 sodium citrate, 60mM ammonium citrate, 36% PEG400, and 3% Additive 80 (40% PPG) |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Nov 27, 2015 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2.7→47.972 Å / Num. obs: 25559 / % possible obs: 95.76 % / Redundancy: 5.6 % / CC1/2: 0.99 / Net I/σ(I): 10.18 |
Reflection shell | Resolution: 2.7→2.752 Å / Num. unique obs: 1101 / CC1/2: 0.69 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 4PXZ Resolution: 2.7→47.97 Å / Cross valid method: THROUGHOUT
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Displacement parameters | Biso max: 193.39 Å2 / Biso min: 37.94 Å2 | ||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.7→47.97 Å
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