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

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

3D cartoon and Gaussian surface models. PDB 1qxm, white background.

DNA mutation, a mutation is a change in a DNA sequence, mutations can result from DNA copying mistakes made during cell division.

Molecular model of lactose, a disaccharide sugar in milk.

Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.

An ECG test chart with pills and a stethoscope

Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering

From left to right: the NMDA and AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht, 3kg2, 6d6u

This footage shows the translation initiation complex, which consists of the ribosomal small subunit, transfer RNA (tRNA), and translation initiation factors. The golden ribbon represents the RNA.

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

Molecular structure of Sulfur dioxide SO2

Chemical formula of Bisphenol A (BPA) with black pen. Close-up.

nanotechnology and abstract graphene structures

Biological protein and molecule, 3d rendering. 3D illustration.

A new antibiotic (zosurabalpin, red) traps lipopolysaccharide (orange) in the intermembrane transporter of the Gram-negative bacterium Acinetobacter baylyi

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.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

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Microcrystalline wax with chemical formula on white laboratory table.

Abstract technological design of an artificial molecular structure in many colors. Horizontal wide composition.

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.

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 cartoon and Gaussian surface models, PDB 6vg8, white background

Molecular model of Adenosine triphosphate, or Adenosine-5'-triphosphate (ATP)

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