+
Open data
-
Basic information
Entry | Database: PDB / ID: 8g94 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Structure of CD69-bound S1PR1 coupled to heterotrimeric Gi | ||||||||||||
![]() |
| ||||||||||||
![]() | IMMUNE SYSTEM / CD69 / S1PR1 / Sphingosine-1-phosphate / lymphocyte egress / GPCR | ||||||||||||
Function / homology | ![]() cardiac muscle tissue growth involved in heart morphogenesis / sphingolipid binding / blood vessel maturation / sphingosine-1-phosphate receptor activity / Lysosphingolipid and LPA receptors / T cell migration / endothelial cell differentiation / heart trabecula morphogenesis / regulation of metabolic process / regulation of bone mineralization ...cardiac muscle tissue growth involved in heart morphogenesis / sphingolipid binding / blood vessel maturation / sphingosine-1-phosphate receptor activity / Lysosphingolipid and LPA receptors / T cell migration / endothelial cell differentiation / heart trabecula morphogenesis / regulation of metabolic process / regulation of bone mineralization / sphingosine-1-phosphate receptor signaling pathway / leukocyte chemotaxis / regulation of bone resorption / positive regulation of positive chemotaxis / negative regulation of stress fiber assembly / lamellipodium assembly / transmission of nerve impulse / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / regulation of cell adhesion / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / positive regulation of smooth muscle cell proliferation / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / neuron differentiation / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / brain development / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / response to peptide hormone / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / transmembrane signaling receptor activity / GPER1 signaling / GDP binding / chemotaxis / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / cellular response to xenobiotic stimulus / signaling receptor complex adaptor activity / cell migration / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / actin cytoskeleton organization / G alpha (s) signalling events / carbohydrate binding / G alpha (q) signalling events / angiogenesis / Interleukin-4 and Interleukin-13 signaling / cell population proliferation / Potential therapeutics for SARS / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell cycle / cell adhesion / endosome Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.15 Å | ||||||||||||
![]() | Chen, H. / Li, X. | ||||||||||||
Funding support | ![]()
| ||||||||||||
![]() | ![]() Title: Transmembrane protein CD69 acts as an S1PR1 agonist. Authors: Hongwen Chen / Yu Qin / Marissa Chou / Jason G Cyster / Xiaochun Li / ![]() Abstract: The activation of Sphingosine-1-phosphate receptor 1 (S1PR1) by S1P promotes lymphocyte egress from lymphoid organs, a process critical for immune surveillance and T cell effector activity. Multiple ...The activation of Sphingosine-1-phosphate receptor 1 (S1PR1) by S1P promotes lymphocyte egress from lymphoid organs, a process critical for immune surveillance and T cell effector activity. Multiple drugs that inhibit S1PR1 function are in use clinically for the treatment of autoimmune diseases. Cluster of Differentiation 69 (CD69) is an endogenous negative regulator of lymphocyte egress that interacts with S1PR1 in cis to facilitate internalization and degradation of the receptor. The mechanism by which CD69 causes S1PR1 internalization has been unclear. Moreover, although there are numerous class A GPCR structures determined with different small molecule agonists bound, it remains unknown whether a transmembrane protein per se can act as a class A GPCR agonist. Here, we present the cryo-EM structure of CD69-bound S1PR1 coupled to the heterotrimeric G complex. The transmembrane helix (TM) of one protomer of CD69 homodimer contacts the S1PR1-TM4. This interaction allosterically induces the movement of S1PR1-TMs 5-6, directly activating the receptor to engage the heterotrimeric G. Mutations in key residues at the interface affect the interactions between CD69 and S1PR1, as well as reduce the receptor internalization. Thus, our structural findings along with functional analyses demonstrate that CD69 acts in cis as a protein agonist of S1PR1, thereby promoting G-dependent S1PR1 internalization, loss of S1P gradient sensing, and inhibition of lymphocyte egress. | ||||||||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 223 KB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 173 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 45.9 KB | Display | |
Data in CIF | ![]() | 70 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 29861MC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
-Protein , 2 types, 3 molecules AFG
#1: Protein | Mass: 40083.781 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
---|---|
#6: Protein | Mass: 23912.793 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules BCD
#2: Protein | Mass: 40445.059 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
---|---|
#3: Protein | Mass: 37728.152 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody , 1 types, 1 molecules E
#5: Antibody | Mass: 27784.896 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: Complex of CD69-bound S1PR1 coupled to heterotrimeric Gi Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
---|---|
Molecular weight | Value: 0.2 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 10 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293 K |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-
Processing
Software | Name: PHENIX / Version: 1.16_3549: / Classification: refinement | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EM software |
| ||||||||||||||||||||||||
CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.15 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 293516 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
|