Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
The cytokin interleukin 11 (IL-11) plays an important role in autoimmune diseases, fibrotic complications, and solid cancers. Blocking IL-11 can extend lifespan and improve health.
3D cartoon model, secondary structure color scheme, PDB 2ygt, white background
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.
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
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.
Recombinant human insulin. 3d cartoon model based on protein data bank
Freshness capsule
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
chromosome,Human genome concept
Resistin also known as adipose tissue-specific secretory factor (ADSF) or C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein (XCP1) is a cysteine-rich peptide hormone derived from adipose tissue that in humans is encoded by the RETN gene. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 1rfx, white background
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
GABA B receptors  are G protein-coupled receptors, also called metabotropic receptors.  Binding of  an agonist (baclofen, red) leads to a G-protein coupled C-AMP signaling pathway. Source: PDB entries 7eb2, 6r3q,.
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.
Concept image of an anticancer drug called ADC. 3d rendering
Molecular Model of Infliximab, or Remicade, a monoclonal antibody against tumour necrosis factor alpha (TNF-α), which is used to treat autoimmune diseases
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
Abstract geometric shape
3D cartoon and Gaussian surface models, PDB 6vg8, white background
Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus
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 HIV protease - an enzyme that is the target of much AIDS and HIV research.
3d rendering of scattered immunoglobulin A, or IgA, molecules in conjunction with secretory protein
DNA A-T Pair
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
Abstract geometric shape
3D cartoon and Gaussian surface models. PDB 2aai, white background.
Multi-colored connected spheres building a molecular structure.
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.
A ball and stick model of a molecule of Human Glucagon, a hormone produced in the pancreas and used by the body to raise levels of glucose in the blood. Glucagon worksin the opposite manner to Insulin, which lowers levels of glucose in the blood - together they work to keep glucose levels stable.
Free Images: "bestof:PDB 1gb4 EBI.jpg Alpha and beta proteins a+b beta-Grasp ubiquitin-like Immunoglobulin-binding domains Immunoglobulin-binding domains Immunoglobulin-binding"
PDB 1gb4 EBI.jpg
PDB 1igd EBI.jpg
PDB 1mhx EBI.jpg
PDB 1pga EBI.jpg
PDB 1em7 EBI.jpg
PDB 3gb1 EBI.jpg
PDB 1p7f EBI.jpg
PDB 1fcl EBI.jpg
PDB 2igg EBI.jpg
PDB 2nmq EBI.jpg
PDB 1hz5 EBI.jpg
PDB 1k50 EBI.jpg
PDB 2ptl EBI.jpg
PDB 2igd EBI.jpg
PDB 1pgx EBI.jpg
PDB 1pgb EBI.jpg
PDB 1mi0 EBI.jpg
PDB 1mvk EBI.jpg
PDB 1p7e EBI.jpg
PDB 2oed EBI.jpg
PDB 1fd6 EBI.jpg
PDB 2gb1 EBI.jpg
PDB 2igh EBI.jpg
PDB 1gb1 EBI.jpg
PDB 1mpe EBI.jpg
PDB 2plp EBI.jpg
PDB 1q10 EBI.jpg
PDB 1hz6 EBI.jpg
PDB 1k51 EBI.jpg
PDB 1kh0 EBI.jpg
PDB 1k52 EBI.jpg
PDB 1k53 EBI.jpg
PDB 1jml EBI.jpg
PDB 1d4b EBI.jpg
PDB 1c9f EBI.jpg
PDB 1f2r EBI.jpg
PDB 1ibx EBI.jpg
PDB 1oey EBI.jpg
PDB 1ip9 EBI.jpg
PDB 1ipg EBI.jpg
PDB 1pqs EBI.jpg
PDB 1tz1 EBI.jpg
PDB 1q1o EBI.jpg
PDB 1wmh EBI.jpg
PDB 1vd2 EBI.jpg
PDB 1wi0 EBI.jpg
PDB 2npt EBI.jpg
PDB 2bkf EBI.jpg
PDB 1wj6 EBI.jpg
PDB 2cu1 EBI.jpg
PDB 2c60 EBI.jpg
PDB 2o2v EBI.jpg
PDB 1jq4 EBI.jpg
PDB 1dee EBI.jpg
PDB 1fc2 EBI.jpg
PDB 3dvg EBI.png
PDB 3dvn EBI.png
PDB 1feh EBI.jpg
PDB 1c4c EBI.jpg
PDB 1c4a EBI.jpg
PDB 3c8y EBI.png
PDB 3b9j EBI.png
PDB 3cir EBI.png
PDB 1lp1 EBI.jpg
PDB 1edl EBI.jpg
PDB 1edi EBI.jpg
PDB 1edk EBI.jpg
PDB 1h0t EBI.jpg
PDB 1edj EBI.jpg
PDB 1q2n EBI.jpg
PDB 2spz EBI.jpg
PDB 1ss1 EBI.jpg
PDB 1bdc EBI.jpg
PDB 1bdd EBI.jpg
PDB 2jwd EBI.png
PDB 1ogw EBI.jpg
PDB 2d3g EBI.jpg
PDB 2j7q EBI.jpg
PDB 1wrd EBI.jpg
PDB 1ubi EBI.jpg
PDB 1ubq EBI.jpg
PDB 2hd5 EBI.jpg
PDB 2oob EBI.jpg
PDB 1uzx EBI.jpg
PDB 1s1q EBI.jpg
PDB 2g45 EBI.jpg
PDB 2ibi EBI.jpg
PDB 1aar EBI.jpg
PDB 2o6v EBI.jpg
PDB 1tbe EBI.jpg
PDB 1wr6 EBI.jpg
PDB 2gmi EBI.jpg
PDB 1f9j EBI.jpg
PDB 1yd8 EBI.jpg
PDB 1d3z EBI.jpg
PDB 1gjz EBI.jpg
PDB 1zgu EBI.jpg
PDB 2den EBI.jpg
PDB 2bgf EBI.jpg
PDB 1g6j EBI.jpg
Terms of Use   Search of the Day