Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
Intestinal microbiome,Probiotics health benefits,Gut bacteria,lactococcus, propionibacterium, bifidobacterium.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
A molecular model of Human Insulin. Isolated on black.
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
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
3D cartoon and Gaussian surface models, PDB 6vg8, white background
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.
Segment of human collagen isolated on a white background
Vitamin B12 Concept
Calmodulin is an intracelular target of calcium ions. Once activated by Ca2+ (red), calmodulin interacts with various target proteins such as kinases and phosphatases.. It plays an important role in long-term memory. and muscle contraction. CaM has 4 calcium binding sites. PDB entry 3CLN, 1CFD
Closeup of X chromosome with DNA inside
Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.
Infinity sign made out of multiple spheres and circular shapes against grey background.
3D cartoon model, secondary structure color scheme, PDB 4krf, white background
Collapse of a donut-shaped object
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.
Inside protein molecule
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange), that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
A ball and stick model of a Polytetrafluoroethylene molecule, also known as PTFE or most commonly Teflon. It is a polymer consisting of only carbon and fluorine atoms. It is used as a non-stick coating for cookware, as a lubricant, and it is also used to contain highly reactive chemicals as it is extremely non-reactive.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Spiral Balls
3D cartoon and Gaussian surface models. PDB 3kqg, chain id color scheme, white background.
Organic objects form a triangle. Artificial space incorporating organic materials.\nThis work was policy within one month. It is also an original work for this brief and cannot be used elsewhere.
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Abstract Globe World Maps On White
Main mutation site of the coronavirus variant B.1.531 emerged in South Africa. The spike protein (red) is bound to the angiotensin converting enzyme 2 (blue). The mutation is at the amino acid position 484 (yellow). Source: PDB entry 6cs2.
Molecular model of amylose, one of the two sugar components in starch
Free Images: "bestof:PDB 1e42 EBI.jpg All beta proteins Immunoglobulin-like beta-sandwich Clathrin adaptor appendage domain Alpha-adaptin ear subdomain-like Beta2-adaptin AP2 ear"
PDB 1e42 EBI.jpg
PDB 2g30 EBI.jpg
PDB 2iv9 EBI.jpg
PDB 2iv8 EBI.jpg
PDB 2vj0 EBI.png
PDB 1kyf EBI.jpg
PDB 1qts EBI.jpg
PDB 1qtp EBI.jpg
PDB 1kyu EBI.jpg
PDB 1b9k EBI.jpg
PDB 1w80 EBI.jpg
PDB 1kyd EBI.jpg
PDB 1ky6 EBI.jpg
PDB 1ky7 EBI.jpg
PDB 1r4x EBI.jpg
PDB 1pzd EBI.jpg
PDB 1gyv EBI.jpg
PDB 2a7b EBI.jpg
PDB 1gyu EBI.jpg
PDB 1iu1 EBI.jpg
PDB 1gyw EBI.jpg
PDB 1na8 EBI.jpg
PDB 2dwy EBI.jpg
PDB 1om9 EBI.jpg
PDB 2dwx EBI.jpg
PDB 1p4u EBI.jpg
PDB 1bgx EBI.jpg
PDB 1gw5 EBI.jpg
PDB 1l6x EBI.jpg
PDB 1oqo EBI.jpg
PDB 1oqx EBI.jpg
PDB 1qfu EBI.jpg
PDB 1eo8 EBI.jpg
PDB 1ken EBI.jpg
PDB 1qle EBI.jpg
PDB 1kb9 EBI.jpg
PDB 2ibz EBI.jpg
PDB 1ezv EBI.jpg
PDB 1p84 EBI.jpg
PDB 1kyo EBI.jpg
PDB 1ar1 EBI.jpg
PDB 1ots EBI.jpg
PDB 2exw EBI.jpg
PDB 2h2p EBI.jpg
PDB 1ott EBI.jpg
PDB 2h2s EBI.jpg
PDB 1otu EBI.jpg
PDB 2exy EBI.jpg
PDB 2fee EBI.jpg
PDB 1r3j EBI.jpg
PDB 1k4c EBI.jpg
PDB 1s5h EBI.jpg
PDB 1k4d EBI.jpg
PDB 1r3i EBI.jpg
PDB 1r3l EBI.jpg
PDB 1r3k EBI.jpg
PDB 1ors EBI.jpg
PDB 1orq EBI.jpg
PDB 1p7b EBI.jpg
PDB 1xl4 EBI.jpg
PDB 1xl6 EBI.jpg
PDB 1r0a EBI.jpg
PDB 2hmi EBI.jpg
PDB 1t03 EBI.jpg
PDB 1n6q EBI.jpg
PDB 1n5y EBI.jpg
PDB 1hys EBI.jpg
PDB 1j5o EBI.jpg
PDB 1n8z EBI.jpg
PDB 1s78 EBI.jpg
PDB 1gl4 EBI.jpg
PDB 1ob1 EBI.jpg
PDB 1txv EBI.jpg
PDB 1ty3 EBI.jpg
PDB 1ty6 EBI.jpg
PDB 1ty5 EBI.jpg
PDB 1tye EBI.jpg
PDB 1ty7 EBI.jpg
PDB 1flt EBI.jpg
PDB 1bj1 EBI.jpg
PDB 1cz8 EBI.jpg
PDB 1tzh EBI.jpg
PDB 2fjg EBI.jpg
PDB 1tzi EBI.jpg
PDB 1qty EBI.jpg
PDB 1rv6 EBI.jpg
PDB 1hcf EBI.jpg
PDB 2h9g EBI.jpg
PDB 1za3 EBI.jpg
PDB 1jma EBI.jpg
PDB 1nl0 EBI.jpg
PDB 1wej EBI.jpg
PDB 1dee EBI.jpg
PDB 1fc2 EBI.jpg
PDB 1f45 EBI.jpg
PDB 1v7m EBI.jpg
PDB 1v7n EBI.jpg
PDB 1lk3 EBI.jpg
PDB 1e6j EBI.jpg
PDB 1de4 EBI.jpg
Terms of Use   Search of the Day