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B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
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.
Industrial terminal blocks
Different types of cat food in in bowls on grey surface with copy space
SFP Optical Transceiver Module. A transceiver device used in computer networking and automation.
Inside protein molecule
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
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
H2 Hydrogen Molecule Fuel Cell Element Vehicle
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
Food containing natural iron. Fe: Liver, avocado, broccoli, spinach, parsley, beans, nuts, on a white background. Top view.
Dryed soy meat
Modern black laptop battery charger isolated on white.
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.
Sata cable, usb and ide cables
HER2 (light blue)  locked in the inactive conformation by Trastuzumab (left) and Pertuzumab. Trastuzumab has drastically improved the prognosis of HER2-positive breast cancer patients.
DNA A-T Pair
Sa Fregula Sarda on a white background
Dried soybeans isolated on white background
Kozinak with sesame seeds on a white background. A traditional sweet of Southwest Asia.
Assortment of products containing magnesium. Healthy diet food. Top view
3D cartoon and Gaussian surface models, PDB 4cmh, white background
High angle view of a group of food with high calcium content arranged at the right leaving copy space at the left. The composition includes dairy products souch milk, yogurt, butter, various cheeses, mozzarella cheese, eggs, sliced orange, broccoli, mixed beans, sardines, almonds among others. High resolution 42Mp studio digital capture taken with SONY A7rII and Zeiss Batis 40mm F2.0 CF lens
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.
High content of dietary fiber food, rich fiber sources vegan food arrangement including fruits and vegetables, seeds beans, whole grain carbohydrates, nuts and legumes ingredients.
Adapter and USB Cable new package set, on black dark stone table 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.
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