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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

$The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.$

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

DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology.

A ball and stick + ribbons model of human Interleukin 2 or IL-2. Interleukin is a hormone which acts as a signalling molecule for the immune system.

DNA composed of two chains that form a double helix. DNA is a molecule inside cells contains genetic information responsible for the development and function of an organism.

Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation

Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.

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

A ball and stick + ribbons model of beta-secretase - a protein that is important in forming healthy peripheral nerve cells, but is also involved in the onset of Alzheimer's disease.

A 3D rendering of a SpyTag-SpyCatcher complex with antibody molecule in the white background

Top view of various kinds of vegan protein sources like tofu, tempeh, soy beans, soy milk, mushrooms, wakame, lentils, peanuts, spinach and chick peas. All the objects are on a gray bluish backdrop. Studio shot taken with Canon EOS 6D Mark II and Canon EF 24-105 mm f/4L

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

3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background

$Abs Virus - 3d rendered image like colorized scanning electron micrograph. Scene showing virus (yellow) emerging from infected cell.\nConcept of coronavirus that’s causing a global pandemic. Covid-19, Sars-cov-2 alpha, betta, gamma, delta, lambda variant, 2019-nCoV, Coronavirus.\nSEM, TEM, hologram view.$

Ingredients containing natural vitamin P, dietary fiber and minerals. Best food for healthy lifestyles

A model of an Enhanceosome protein complex binding to a strand of DNA. This enhanceosome reacts to infection by viruses by accelerating the production of human interferon and triggering the defenses of the immune system.

Fresh vegetables, fruits and seeds on black table, flat lay. Sources of essential amino acids

Isolated Poly Protein G with Detection Antibodies to enhance Immunoassays sensitivity 3d rendering

Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.

Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange), that is aggregated to amyloid beta fibrils, which build up amyloid plaques.

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