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After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
plant Zea Stem C.S. under light mircoscope with white background
Artificial Intelligence: Simplified image of the principles of convolutional neural networks with input, hidden, output layers. It classifies geometric forms - in this case a cube
Intricate bubble texture macro in bright colors for abstract background. Liquid bubbles lit from below with colors injected into the liquid as a design or art abstract.
Logical Graph
closeup brown cutting mat, equipment in office
Social Media, Account, USA, Connect
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
plant rape flower cross section under light mircoscope with white background
How a lithium ion battery works, 3d render, section. Battery charging and discharging. Ions flow from the anode to the cathode separated by a liquid electrolyte as the battery discharges energy
Burkitt lymphoma is a form of non-Hodgkin's lymphoma in which cancer starts in immune cells called B-cells. Recognized as a fast growing human tumor, Burkitt lymphoma is associated with impaired immunity and is rapidly fatal if left untreated.
A simple dark background with cubes, blockchain representation
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Skin cells and molecular structure, 3d rendering. Computer digital drawing.
4K Resolution Infographic Animation
The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation). Blocking the CGRP receptor diminishes the quantity of migraine attacks.\
New financial services linked to credit cards
Big data analytics, abstract concept. Graphs and charts showing information and groups of people on a black background. Digital 3D rendering.
graphs and charts  Financial data analyzing
3D cartoon and Gaussian surface models with a putative membrane shown, PDB 4p02, white background
Haematocysts of single-celled green algae,
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
corn stem micrograph with dye
Host cells with spores (mold) are inside wood under the microscope for education.
Cryptococcal pneumonia. Cryptococcal pneumonia is a fungal infection caused by Cryptococcus neoformans predominantly in immunosuppressed individuals and rarely in the immunocompetent population.
GABA B receptors  are G protein-coupled receptors, also called metabotropic receptors.  Binding of  an agonist (here baclofen, red) leads to a G-protein coupled C-AMP signaling pathway. Source: PDB entries 7eb2, 6r3q,.
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy
3D cartoon and Gaussian surface models, PDB 6gu2, white background
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
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(Downbeat, New York, N.Y., ca. 1948) (LOC) (4843742508).jpg
(Portrait of Duke Ellington, William P. Gottlieb's home, Maryland, 1941) (LOC) (4932366128).jpg
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(Portrait_of_Bud_Freeman,_Eddie_Condon's(?),_New_York,_N.Y.,_between_1946_and_1948)_(LOC)_(5306966898).jpg
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(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5269517304).jpg
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(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5268905963).jpg
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(Portrait_of_Walter_Hendl,_Tony_Aless,_Billy_Bauer,_Chubby_Jackson,_Don_Lamond,_Woody_Herman,_and_Flip_Phillips,_Carnegie_Hall(?),_New_York,_N.Y.(?),_ca._Apr._1946)_(LOC)_(4843746780).jpg
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IGFarbenGoetterrat.jpg
Bartholomeus_van_der_Helst,_Banquet_of_the_Amsterdam_Civic_Guard_in_Celebration_of_the_Peace_of_Münster.jpg
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