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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.

Cells in the body examined by endoscope

Microscopic photo of a thin section of calcareous tufa of Holocene age.

A ball and stick + ribbons model of Serotonin Acetyltransferase, an enzyme active in the production of serotonin in the body. Serotonin has an important role in controling mood, anxiety, anger and aggression as well as appetite and sleep.

3d rendered Gastric inhibitory polypeptide (GIP, glucose-dependent insulinotropic peptide) endocrine protein hormone, 3D illustration

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Science background with molecule or atom

Molecular structure formula. Concept. 3D Render

3D cartoon and Gaussian surface models, PDB 7bg9, white background.

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

Risdiplam drug molecule, 3D illustration. A medication used to treat spinal muscular atrophy, SMA

Firing Neurons Hologram - 3d rendered image of Neuron cell network on black background. Conceptual medical illustration. Healthcare concept. SEM [TEM] view. Glowing neurons signals.

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

A molecular model of the flavonoid Quercetin. An antioxidant and anti-inflamatory, it is used as a nutritional suplement. It is commonly found in many fruits and vegetables and is a significant chemical component of tea. Isolated on white.

3d structure of Gedatolisib, an agent targeting the phosphatidylinositol 3 kinase (PI3K) and mammalian target of rapamycin (mTOR) in the PI3K/mTOR pathway, with potential antineoplastic activity.

3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.

B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background

dna close-up 3D

Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration

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.

Cannabidiolic acid or CBDA cannabinoid molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.

A ball and stick model of a molecule of Human Interferon. Interferons are proteins important in the working of the immune system and are produced in large numbers in the presence of viruses, bacteria, tumors and parasites. Interferons are used in drugs to combat cancer, multiple sclerosis, hepatitis B and C and other diseases. Isolated on white.

TNF-alfa (blue) is the most potent proinflammatory cytokine and is crucial in the pathogenesis of PsA. TNF- inhibitors considerably relieve symptons in patients. A therapeutic antibody (adalimumab) blocks the receptor binding site of TNF-.

Limestone rocks and conifers in Polish mountains

3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background

$Clear cell renal cell carcinoma. Site: Kidney. Clear cell renal cell carcinoma is a cancer of the kidney. The name \$

Molecular model of insulin hormone, 3D illustration. It is produced by pancreas and takes part in glucose and lipid metabolism

3D rendering of microscopic molecular structure

Chain of amino acid or bio molecules called protein - 3d illustration

A ball-and-stick molecular model of the hormone Orexin, also known as Hypocretin. Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease. Isolated on white.

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