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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.
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy
3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background
A conceptual image of an abstract network of multi-coloured organic strands arranged in a non regular pattern all connected together in a complex manner. The network is made from smaller multi-coloured squares and polyhedra, in vivid colours against a pastel toned background. Shows background and foreground elements to the structure.
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.
Acetylcholine receptors in the lipid layer of cell membrane.
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
Lily leaf c.s. under microscope
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.
Cells in the body examined by endoscope
Cells and cancer cells,Microscopic image of cells, 3d rendering, division of cancer cell
Particles, medical concept
Chaetoceros is the largest genus of marine planktonic diatoms, phytoplankton
Liver Fluke Section under light microscope with white background
Transmission electron microscope micrographs showing the aspect of muscle fiber sarcomere components in longitudinal (below) and transverse (above) sections at the Z-line, I and A bands and H zone
anaplastic thyroid carcinoma with heterologous differentiation (leiomyosarcoma)
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,.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Thyroid cancer: Microscopic image of Metastatic papillary carcinoma of thyroid. Reactive change. Lymph node carcinoma.
Computational tomography image of the abdominal and pelvic regions.
forming of underskin cellulite illustration
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens. Depth of focus is extremely shallow (just a few microns). Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
3D cartoon and Gaussian surface models, PDB 6kxs, white background
Diffuse epithelioid malignant mesothelioma. Site: Peritoneum. Diffuse epithelioid mesothelioma affects the lining of the organs, including the lungs, stomach, or heart.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).
Photomicrograph of flatworm,
Photomicrograph of Histological analysis of Intramedullary SOL showing Astrocytoma, WHO grade-4
Acute ordinary hepatitis liver biopsy under light microscopy
Human lung pathology under light microscope, The lungs is organs of the respiratory system in humans.
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
Free Images: "bestof:Thylakoid membrane bg.png Light-dependent reactions of photosynthesis at the thylakoid membrane It shows noncyclic phosphorylation noncyclic electron transport"
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