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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.

$Abundant meningococci bacteria observed, with a notably absence of white blood cells in the spinal fluid from a critically ill meningitis patient. Meningococcal meningitis is the term used to describe a bacterial form of meningitis caused by Neisseria meningitidis. This form of meningitis is associated with high morbidity and mortality. \nSometimes the bacteria spread to people who have had close or lengthy contact with a patient with meningococcal disease. Those at increased risk of getting sick include: People in the same household, roommates and anyone with direct contact with the patient’s oral secretions, such as a kissing partner$

3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background

A simple dark background with cubes, blockchain representation

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

Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.

Solar radiation analysis of a public building. Multipurpose common public space analysis with parametric louvers to control sun exposure and radiation.

plant Stem-Collenchyma C.S. under light mircoscope with white background

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.

Squash preparation of onion root tip cells stained to reveal chromosomes, Bright field illumination, light microscopy. This image was taken with the X40 objective lens. Depth of focus is extremely low at this magnification. Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced. The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.

Vacuolar-type ATPase (V-ATPase) is a highly conserved evolutionarily ancient enzyme with remarkably diverse functions in eukaryotic organisms. V-ATPases acidify a wide array of intracellular organelles and pump protons across the plasma membranes of numerous cell types. 3D cartoon and Gaussian surface models, based on PDB 6wm2, white background.

Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.

Skin cells and molecular structure, 3d rendering. Computer digital drawing.

background colored macro bubbles of water

Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy

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,.

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.

3D cartoon and Gaussian surface models with a putative membrane shown, PDB 4p02, white background

Photomicrograph of rotifer. Rapidly rotating cilia at top of head, internal organs visible. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.

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.

DNA sequencing peaks show on touch pad with chemical structures

Host cells with spores (mold) are inside wood under the microscope for education.

The territory of the LNG plant with tanks, technological platforms, overpasses and other. White lines on a gradient blue background. 3d-rendering

Creative seamless pattern with hand drawn textures. Abstract background. Polka dot pattern.

$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

3D cartoon and Gaussian surface models, PDB 6gu2, white background

Abstract CGI background with bright segments and speckles of colours. Interconnected matrix of tech modules

Free Images: "bestof:Wallpaper group diagram cmm.svg Cell structure diagram of the wallpaper group cmm generated by self written XSLT available from the category overview created 22"

Polychrom arab epigraphy alhambra granada.jpg

(Downbeat, New York, N.Y., ca. 1948) (LOC) (4843742508).jpg

(Portrait of Duke Ellington, William P. Gottlieb's home, Maryland, 1941) (LOC) (4932366128).jpg

(Portrait_of_Duke_Ellington,_Howard_Theater(?),_Washington,_D.C.,_ca._June_1946)_(LOC)_(4932366288).jpg

(Portrait_of_Bob_Haggart,_Morey_Feld,_and_Mack_Shopnick,_New_York,_N.Y.(?),_ca._July_1947)_(LOC)_(4843130767).jpg

(Portrait_of_Bob_Haggart,_Morey_Feld,_and_Mack_Shopnick,_New_York,_N.Y.(?),_ca._July_1947)_(LOC)_(4976478687).jpg

(Portrait_of_Al_Hall_and_with_pit_band,_Broadway_show,_"Barefoot_Boy_With_Cheek"(?),_New_York,_N.Y.,_between_1946_and_1948)_(LOC)_(4976479331).jpg

(Portrait_of_Bud_Freeman_and_Frankie_Laine,_New_York,_N.Y.(?),_between_1938_and_1948)_(LOC)_(4976466127).jpg

(Portrait_of_Cliff_Jackson,_Café_Society_(Downtown)(?),_New_York,_N.Y.,_ca._Apr._1947)_(LOC)_(5020402178).jpg

(Portrait_of_Benny_Goodman,_Sid_Catlett,_and_Vido_Musso,_400_Restaurant(?),_New_York,_N.Y.,_between_1946_and_1948)_(LOC)_(4843744540).jpg

(Portrait_of_Billie_Holiday,_Downbeat(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(4843747486).jpg

(Portrait_of_Cat_Anderson,_Ray_Nance,_and_Taft_Jordan(?),_Aquarium,_New_York,_N.Y.,_ca._Nov._1946)_(LOC)_(4932367668).jpg

(Portrait_of_Ernie_Caceres,_Bobby_Hackett,_Freddie_Ohms,_and_George_Wettling,_Nick's_(Tavern)(?),_New_York,_N.Y.,_between_1946_and_1948)_(LOC)_(4977088868).jpg

(Portrait_of_Fran_Warren_and_Gene_Williams,_Hotel_Pennsylvania(?),_New_York,_N.Y.,_ca._Oct._1947)_(LOC)_(5148806648).jpg

(Portrait_of_Cozy_Cole,_New_York,_N.Y.(?),_ca._Sept._1946)_(LOC)_(5269515180).jpg

(Glenn_Miller_Orchestra(?),_New_York,_N.Y.(?),_between_1938_and_1948)_(LOC)_(5306384035).jpg

(Portrait_of_Bud_Freeman,_Eddie_Condon's(?),_New_York,_N.Y.,_between_1946_and_1948)_(LOC)_(5306966898).jpg

(Portrait_of_Billy_Kyle,_New_York,_N.Y.(?),_between_1938_and_1948)_(LOC)_(5354796148).jpg

(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5269517304).jpg

(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5268905963).jpg

(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

Wallpaper group diagram legend rotation2.svg

Wallpaper group diagram legend rotation4.svg

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(Portrait of Eve Knight, between 1938 and 1948) (LOC) (5354793602).jpg

(Portrait of Eve Knight, between 1938 and 1948) (LOC) (5354179795).jpg

(Portrait of Eve Knight, between 1938 and 1948) (LOC) (5354793962).jpg