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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
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Stomach cancer, symptoms, stages, treatment, 3d illustration
Molecular model of amylose, one of the two sugar components in starch.
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
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.
Tetradecylthioacetic acid molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Fictitious molecule model inside red and blue pill isolated on white.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Deacetoxycephalosporin-C synthase (DAOCS) is a mononuclear ferrous enzyme that transforms penicillins into cephalosporins. 3D cartoon and Gaussian surface models, chain instance color scheme, based on PDB 1uof, white background.
Chemical formula of Progesterone
business strategy concept infographic diagram illustration of balanced scorecard perspectives
Abstract Globe World Maps On White
Chemical formula of Testosterone on a blackboard
3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.
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.
Molecular structure of Sulfur dioxide SO2
Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration
Molecular model of lactose, a disaccharide sugar in milk.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
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.
Breast Cross Section of Fat .
Open capsule or pill with molecular structure. Nanotechnology concept
The epidermal growth factor (EGF, red) activates the EGF receptor by binding to it. The activated receptor promotes migration, adhesion and proliferation  of cells. Source: PDB entries, 1 EGF,  1nql, 1ivo, 2jwa, 1m17 and 2gs6.
Chemical formula of Testosterone
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Molecular Model of Vitamin E.
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Crystal Lattice
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