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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
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.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
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.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Collagen protein molecule. Molecular model. 3D rendering. Illustration
Conceptual large group of Covid-19 viruses with copy space. Covid-19 virus illustration downloaded from CDC than layered and manipulated. for more information please visit Centers for Disease Control and Prevention web site: https://www.cdc.gov/media/subtopic/images.htm
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
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.
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
In vitro bacterial culture
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.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Different vegetables, seeds and fruits on black table, flat lay. Sources of essential amino acids
DNA and biotechnology concept
Inside protein molecule
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, 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.
Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration
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.
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
Hemp Floral Wax in a petri dish
A quadrant streak of the bacterium Staphylococcus aureus cultured or inoculated on Baird-Parker agar with egg tellurite .
Liver Fluke Section under light microscope with white background
3D cartoon and Gaussian surface models, PDB 6p8e, white background
In vitro bacterial culture
DNA A-T Pair
Tetradecylthioacetic acid molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Free Images: "bestof:PDB 2i05 EBI.png Multi-domain proteins alpha and beta Replication terminator protein Tus Replication terminator protein Tus Replication terminator protein Tus"
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