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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.

Frataxin (human) mitochondrial protein. Reduced expression causes Friedreich's ataxia. 3D illustration. Cartoon & wireframe representation.

Maltose or maltobiose or malt sugar is a disaccharide formed from two units of glucose joined with an alpha bond. 3d illustration

Model commonly used in education.

3D cartoon model, PDB 2e5d, white background

Molecular model of lactose, a disaccharide sugar in milk.

Anthrax oedema factor. Molecular model of oedema factor (EF) from the anthrax bacterium Bacillus antracis complexed with a calmodulin protein molecule. EF is one of three protein components that form the anthrax toxin. It is an enzyme that interferes with water homeostasis, leading to the accumulation of fluid in the tissues. Anthrax most commonly affects cattle, sheep and goats, but can also infect humans.

A molecule of sucrose, showing thermal ellipsoids.

3D rendering illustrations of DNA molecules, with masks

A ribbons model of an antibody, also known as immunoglobin. The immune system produces antibodies (using white blood cells) which then identify and attack viruses and bacteria.

Prostaglandin D2 or PGD2 is a prostaglandin that binds to the receptor PTGDR as well as CRTH2. 3d illustration

3d structure of l-glucose molecule.

Ball and stick model of sucrose molecule against a white background

Complex formula of an organic molecule.

3D ball-and-stick and Gaussian surface model, PDB 2mi1, white background

Vitamin C or Ascorbic acid are hydroxyl, carbonyl and ether respectively. It can be used for group, functional,scientific,ring, chemical structure, organic compound, liquid, structural,skeletal, isolated, 3d, ball, model, molecular, organic, element, chain, abstract, bond, compound, structure, chemical, atomic, illustration, solvent, molecule, atom, background, black, carbon, chemistry, formula, hydrogen, science, vector, white,alkyl,radical,isomeric, alkyl.

A ball and stick + ribbons model of Bowman-Birk Protease Inhibitor, more commonly abbreviated to BBI. It is used clinically to treat and help prevent cancer.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

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

Thioredoxin antioxidant enzyme. 3D illustration. Atoms shown as spheres with conventional color coding.

Chemical Formulas Medical Experiment

3D cartoon model, PDB 2wby, white background

Chemical structure of Vitamin C (Ascorbic acid). Also known as ascorbate. Formula: C6H8O6. 3D illustration. Chemical structure model: Ball and Stick. RGB + Alpha(Transparent) channel.

A ball and stick model of Human Insulin. Isolated on black.

Borazine with Li cation and hydrogen molecules as hydrogen storage system. 3d illustration

Interleukin 13 (IL-13) cytokine protein. 3D illustration. Atoms shown as spheres with conventional color coding.

Render of molecule in hi-key

Free Images: "bestof:Ribose Held in Complex of Enzyme (H-bonds and Mg ions shown).png Transferred from http //en wikipedia org en wikipedia; transferred to Commons by User FSII"

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