Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Prions are misfolded proteins with the ability to transmit their misfolded shape onto normal variants of the same protein. They characterize several fatal and transmissible neurodegenerative diseases in humans and many other animals.
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.
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Abstract geometric shape
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background
Immunoglobulin G (IgG) - 3d rendered image. Microbiology illustration  the structure of an antibody. The Y-shaped structure. IgG is the most common type of antibody.
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Ovarian Cancer Cell
Nirmatrelvir inhibits the 3C-like protease of the SARS-CoV 2 virus. The coronavirus 3CL hydrolase enzyme, also known as the main protease, is essential for the maturation of the virus.
Antibodies conjugated with drugs at the FC region are designed to attach a drug to the FC region of the antibody. This technology leverages the specificity of antibodies to deliver the drug directly to target cells. As a result, it can enhance the drug's effectiveness and reduce side effects. This approach is particularly promising in cancer treatment and therapies for autoimmune diseases.
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.
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
3D cartoon and Gaussian surface models. chain id color scheme, PDB 5zjd, white background.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Cholera toxin, molecular model. Cholera toxin (choleragen) is a protein complex secreted by the bacterium Vibrio cholerae, that causes the disease cholera. It is made up of a wedge-shaped A subunit (right part of illustration) and five B subunits (left part of illustration) that form a ring which binds to the intestinal lining. In its most severe forms, cholera is one of the most rapidly fatal illnesses known.
Molecular Model of Cyclosporine, an immunosuppressant drug widely used in organ transplantation to prevent rejection.
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
Freshness capsule
Low-Fiber Diet Risks Gut Health & Allergies
A ball-and-stick molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
3D cartoon and Gaussian surface models. PDB 2aai, white background.
Dengue virus cell. 3D Render
3D model of a protein molecule. The spatial oriented structure of the macromolecule.
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.
Rapamycin, also known as sirolimus is a macrolide compound that has immunosuppressant functions and prevents transplant rejection through the inhibition of  the protein complex mTORC1.
Abstract Genetics Disease - 3d rendered image.
Free Images: "bestof:PDB 3bqc EBI.png Alpha and beta proteins a+b Protein kinase-like PK-like Protein kinase-like PK-like Protein kinases catalytic subunit Protein kinase CK2 alpha"
egg-egg-carton-protein-proteins-319544.jpg
fried-eggs-eat-egg-food-snack-547389.jpg
ham-sausage-turkey-ham-turkey-meat-74197.jpg
scrambled-eggs-egg-eat-breakfast-1042653.jpg
scrambled-eggs-breakfast-plate-939251.jpg
veal-shank-meat-veal-steakes-haxe-74307.jpg
meat-pork-pork-belly-tuna-belly-74214.jpg
marrowbone-beef-meat-bone-raw-eat-897982.jpg
beef-meat-bone-raw-eat-food-red-897977.jpg
deep-fat-frying-sear-fry-oil-74242.jpg
tatry-protein-buried-642761.jpg
protein-nature-walnut-rodent-1036554.jpg
computer-generated-protein-model-604077.jpg
protein-tail-fluffy-walnut-524019.jpg
protein-park-living-nature-1010177.jpg
egg-shell-protein-brown-990764.jpg
protein-in-the-park-rodent-979924.jpg
protein-park-in-the-park-979921.jpg
eggs-food-protein-meals-tasty-215633.jpg
protein-food-sniff-rodent-trees-939191.jpg
hazelnut-nut-protein-1098182.jpg
hazelnut-nut-protein-1098181.jpg
pecan-nut-protein-1098179.jpg
protein-animals-living-nature-fauna-754828.jpg
protein-squirrel-animal-730267.jpg
squirrel-animal-protein-feeding-730501.jpg
protein-animal-animal-planet-1168140.jpg
squirrel-protein-animals-animal-815265.jpg
food-protein-balls-snacks-bowl-1518445.jpg
protein-animals-animals-in-nature-1471741.jpg
eggs-chicken-protein-brown-egg-1696310.jpg
protein-park-autumn-animals-rodent-1459172.jpg
protein-tree-prirodazhivotnoe-1687427.jpg
protein-animal-walnut-tree-nature-1687426.jpg
chicken-egg-animal-protein-eat-456645.jpg
summer-tree-animal-protein-tail-352434.jpg
animal-small-hairy-protein-tree-351593.jpg
whipped-slaughtered-tampa-protein-327946.jpg
eggs-brown-straw-protein-easter-933594.jpg
cashew-nut-nut-protein-1098177.jpg
pine-nuts-nut-protein-1098176.jpg
pine-nuts-nut-protein-1098175.jpg
macadamia-nuts-nut-protein-1098170.jpg
walnuts-nuts-snack-protein-brown-932080.jpg
dough-cookies-cookie-protein-1375769.jpg
egg-white-food-protein-eggshell-1618854.jpg
eggs-white-breakfast-protein-781156.jpg
mountains-tatry-river-protein-1431033.jpg
fried-fry-pan-egg-protein-596169.jpg
eggs-carton-food-healthy-protein-933722.jpg
food-drink-fresh-healthy-protein-88100.jpg
egg-burst-torn-expired-protein-696518.jpg
nest-egg-bird-food-protein-basket-716886.jpg
egg-burst-torn-expired-protein-696517.jpg
pancake-eat-fruit-healthy-protein-1205615.jpg
hemp-seeds-sativa-hemp-protein-1418324.jpg
Japanese-food.jpg
salad-olives-olive-oil-egg-protein-1454354.jpg
Heart-Shaped-Eggs.jpg
christmas-cookies-cookie-560716.jpg
christmas-cookies-cookie-560714.jpg
christmas-cookies-cookie-560713.jpg
christmas-cookies-cookie-560712.jpg
food-breakfast-healthy-clean-856893.jpg
alat2-human-alanine-872522.jpg
chocolate-marshmallow-mohrenkopf-1150559.jpg
Asian-calories-catering-cellulite-1239427.jpg
beef-sliced-gourmet-cooking-1701194.jpg
Oligodendrocyte.png
eggs-different-sizes-hen-food-651710.jpg
cheese-slicer-crackers-appetizers-650029.jpg
egg-fried-ramekins-pan-fry-596174.jpg
eggs-brown-white-dairy-chicken-533820.jpg
hela-cells-cultured-544312.jpg
beans-pink-white-food-edible-498593.jpg
quinoa-grains-seeds-edible-food-497210.jpg
egg-hen-s-egg-food-nutrition-463944.jpg
egg-hen-s-egg-food-nutrition-463943.jpg
egg-hen-s-egg-food-nutrition-463940.jpg
egg-glass-still-life-breakfeast-456218.jpg
pecan-hand-food-snack-nut-brown-423705.jpg
egg-egg-yolk-yellow-cracked-open-390676.jpg
egg-egg-yolk-yellow-cracked-open-390675.jpg
egg-egg-yolk-yellow-cracked-open-390674.jpg
chocolate-peanut-butter-juice-409439.jpg
chocolate-peanut-butter-juice-409437.jpg
egg-burst-boiled-egg-breakfast-egg-357562.jpg
meringue-sweet-pastries-pastry-shop-356734.jpg
breakfast-eggs-roll-jam-food-menu-111841.jpg
breakfast-eggs-roll-jam-food-menu-111842.jpg
breakfast-eggs-roll-jam-food-menu-111840.jpg
egg-quail-hand-holding-hold-85801.jpg
eggs-shells-easter-chicken-brown-70621.jpg
cashew-nuts-food-healthy-snack-931960.jpg
eggs-carton-dozen-food-healthy-933399.jpg
egg-yolk-flour-dough-ingredient-951588.jpg
fried-egg-yolk-breakfast-703904.jpg
shake-chocolate-banana-drink-straw-677437.jpg
fried-fry-pan-sizzle-egg-yolk-673254.jpg
cow-milk-dairy-cattle-farm-653296.jpg
Terms of Use   Search of the Day