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.
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 human Interleukin 2 or IL-2. Interleukin is a hormone which acts as a signalling molecule for the immune system.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Molecular Model of Human Insulin with disulfide bonds shown.
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
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.
3D cartoon and Gaussian surface models. chain id color scheme, PDB 5zjd, 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,.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
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.
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.
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.
A carboxypeptidase is a protease enzyme that hydrolyzes a peptide bond at the carboxy-terminal end of a protein or peptide. 3D cartoon model, secondary structure color scheme, PDB 2v77, white background.
Neuron Network in the Brain. 3d Render
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.
DNA A-T Pair
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
A 3D rendering of a SpyTag-SpyCatcher conjugate, the molecular interaction between these biomolecules. This is used in various biotechnological applications for protein labeling and purification.
Freshness capsule
3D cartoon model, secondary structure color scheme, PDB 2rfn, white background
chromosome,Human genome concept
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.
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 model of a protein molecule. The spatial oriented structure of the macromolecule.
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.
Free Images: "bestof:PDB 2itx EBI.jpg Alpha and beta proteins a+b Protein kinase-like PK-like Protein kinase-like PK-like Protein kinases catalytic subunit EGF receptor tyrosine"
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
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
meat-pork-pork-belly-tuna-belly-74214.jpg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
PKARII.svg
Protein 7 domen.svg
Proteinkinase 1.svg
Hesperadin.svg
Cabozantinib.svg
Crenolanib.svg
Quizartinib.svg
Motesanib.svg
Regorafenib.svg
Tivozanib.svg
SU6656.svg
Radotinib.svg
Brigatinib.svg
Proteinoxidation 03.svg
PP2 skeletal.svg
KT 5720.svg
Stauprimide.svg
Y-27632.svg
AEE788.svg
Tamatinib.svg
Fostamatinib.svg
Foretinib.svg
VX680.svg
ZM-447439.svg
Brivanib alaninate.svg
Canertinib.svg
CYT387.svg
Linsitinib.svg
Palbociclib.svg
Dinaciclib.svg
Dacomitinib.svg
TG101209.svg
Ceritinib.svg
Icotinib.svg
MK-2206.svg
Cediranib.svg
AZD2171.svg
Semaxanib.svg
Fostamatinib disodium.svg
Ombrabulin.svg
Tivantinib structure.svg
(+)-K252a.svg
Ibrutinib.svg
Lenvatinib metabolism.svg
ORs and GP.svg
Steatosis.svg
Lucitanib.svg
Toceranib.svg
Genetic code.svg
Genetic code mk.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Epicocconone protein.svg
Main protein structure levels pl - secondary structure.svg
Protein primary structure zh (zh-tw).svg
Main protein structure levels pl.svg
Proteinoxidation.svg
Glicoprotein.svg
Jak domain structure.svg
Laminin sketch.svg
Alpha sheet bonding schematic-color.svg
Beta sheet bonding antiparallel-color.svg
Beta sheet bonding parallel-color.svg
Proteinoxidation 02.svg
AminoAcid length distribution 2010.svg
Primärstruktur von Proteinen2.svg
Pseaa figure1.svg
Beta-Faltblatt.svg
IFT particle chlamydomonas.svg
TOM complex.svg
ProteinQS.svg
Sumatriptan binding site.svg
Lipid raft organisation scheme.svg
Complement pathway.svg
Intermediate filament.svg
Stat domain structure (zh-cn).svg
Jak domain structure (zh-cn).svg
Ribosome mRNA translation tr.svg
Human genome by functions.svg
Molbio-Header-2.svg
Notable mutations.svg
Cell membrane detailed diagram blank.svg
Molbio-Header.svg
Hepatitis B virus v2.svg
PDB 2itx EBI.jpg
PDB 1xkk EBI.jpg
PDB 2gs6 EBI.jpg
PDB 1m14 EBI.jpg
PDB 2gs2 EBI.jpg
Terms of Use   Search of the Day