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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.
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Collagen protein molecule. Molecular model. 3D rendering. Illustration
Inside protein molecule
Science background with molecule or atom
A ball and stick model of the common sugar sucrose.
Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.
3d render. Silver coin NFT  on black background  with the network.  Pay for unique collectibles in games or art.
Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration
3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.
Molecular model of insulin hormone, 3D illustration. It is produced by pancreas and takes part in glucose and lipid metabolism
Molecular structure of Sulfur dioxide SO2
3D cartoon and Gaussian surface models, PDB 5fwk, white background
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 rendering of benzene molecules conjugated gold (Au) nanoparticles (NPs) on the black background
Fictitious molecule model inside red and blue pill isolated on white.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Molecular model of Adenosine triphosphate,  or Adenosine-5'-triphosphate (ATP)
Immunity protection concept, Chromium. Hexagons with Chromium icon, blurry background.
Open capsule or pill with molecular structure. Nanotechnology concept
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
A molecular model of the plasticizer Dibutyl Phthalate or DBP.  As a plasticizer it has been used in many products including adhesives, textiles, cosmetics and children's toys. There are now concerns about its health effects, particularly its effect on male health and behaviour.   Isolated on white.
3D illustration of pyrrole molecule composed of carbon, hydrogen, nitrogen and oxygen atoms, isolated over gray background.
Green Go Button on Black Background with Clipping Path
Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration
Molecular Model of Vitamin D.
Immunity protection concept. Shield in doctor`s hands with Calcium icon.
Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus
The main hormones produced by the thyroid gland are thyroxine or tetraiodothyronine or T4 and triiodothyronine or T3 3d rendering
A molecular model of Bisphenol A or BPA.  It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses.   Isolated on white.
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