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.
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.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
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.
CRISPR-Cas9 gene editing technology
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. 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.
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.
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.
An antibody, also known as an immunoglobulin, is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. 3D cartoon and Gaussian surface models with differently colored chains, white background.
dna helix
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.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Brain-derived neurotrophic factor (3d), also known as BDNF, a protein that supports the survival of existing neurons, and encourages the growth and differentiation of new neurons and synapses.
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.
PETase is a bacterial enzyme that breaks down PET-plastic to monomeric molecules. The whole bacterial degradation process yields terephtalic acid and ethylene glycol, which are environmentally harmless.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
3D cartoon and Gaussian surface models, PDB 6vg8, white background
Freshness capsule
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.
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.
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
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.
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.
dna helix
3D cartoon and Gaussian surface models, chain entity color scheme, PDB 4oo8, white background
X chromosome with degrading or aging telomeres isolated on white background
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 1d5e EBI.jpg Alpha and beta proteins a+b RNase A-like RNase A-like Ribonuclease A-like Ribonuclease A also ribonuclease B S EBI License 1d5e November 16"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
PDB 1d5e EBI.jpg
PDB 1dy5 EBI.jpg
PDB 1kf3 EBI.jpg
PDB 1kf2 EBI.jpg
PDB 1kf4 EBI.jpg
PDB 1kf5 EBI.jpg
PDB 1kf8 EBI.jpg
PDB 1kf7 EBI.jpg
PDB 7rsa EBI.jpg
PDB 1o0h EBI.jpg
PDB 1o0o EBI.jpg
PDB 2blp EBI.jpg
PDB 2blz EBI.jpg
PDB 1ruv EBI.jpg
PDB 1rpg EBI.jpg
PDB 3rat EBI.jpg
PDB 2rat EBI.jpg
PDB 5rat EBI.jpg
PDB 6rat EBI.jpg
PDB 7rat EBI.jpg
PDB 4rat EBI.jpg
PDB 8rat EBI.jpg
PDB 1rat EBI.jpg
PDB 1rhb EBI.jpg
PDB 1eie EBI.jpg
PDB 1eic EBI.jpg
PDB 1eid EBI.jpg
PDB 2g8q EBI.jpg
PDB 1fs3 EBI.jpg
PDB 1z6s EBI.jpg
PDB 1izr EBI.jpg
PDB 1c8w EBI.jpg
PDB 1izp EBI.jpg
PDB 1z6d EBI.jpg
PDB 1bel EBI.jpg
PDB 1rnd EBI.jpg
PDB 1o0m EBI.jpg
PDB 1o0n EBI.jpg
PDB 2rns EBI.jpg
PDB 1rnc EBI.jpg
PDB 3rn3 EBI.jpg
PDB 1o0f EBI.jpg
PDB 9rat EBI.jpg
PDB 1rnu EBI.jpg
PDB 4rsd EBI.jpg
PDB 1rnv EBI.jpg
PDB 3rsd EBI.jpg
PDB 1rob EBI.jpg
PDB 1f0v EBI.jpg
PDB 1rbd EBI.jpg
PDB 1rbx EBI.jpg
PDB 3rsp EBI.jpg
PDB 1w4o EBI.jpg
PDB 2g8r EBI.jpg
PDB 1xps EBI.jpg
PDB 1rbi EBI.jpg
PDB 1afk EBI.jpg
PDB 1rnn EBI.jpg
PDB 1rbw EBI.jpg
PDB 1rbh EBI.jpg
PDB 1w4q EBI.jpg
PDB 8rsa EBI.jpg
PDB 1c9x EBI.jpg
PDB 1c9v EBI.jpg
PDB 1a5p EBI.jpg
PDB 1ras EBI.jpg
PDB 1afl EBI.jpg
PDB 1w4p EBI.jpg
PDB 1izq EBI.jpg
PDB 1rbg EBI.jpg
PDB 1rbe EBI.jpg
PDB 1rnw EBI.jpg
PDB 2rln EBI.jpg
PDB 1lsq EBI.jpg
PDB 9rsa EBI.jpg
PDB 1qhc EBI.jpg
PDB 1z3l EBI.jpg
PDB 1rno EBI.jpg
PDB 1rar EBI.jpg
PDB 1rnz EBI.jpg
PDB 1jvu EBI.jpg
PDB 1xpt EBI.jpg
PDB 1rha EBI.jpg
PDB 1rnx EBI.jpg
PDB 1rnm EBI.jpg
PDB 1rbf EBI.jpg
PDB 2g4x EBI.jpg
PDB 1rny EBI.jpg
PDB 1ssc EBI.jpg
PDB 5rsa EBI.jpg
PDB 1wbu EBI.jpg
PDB 1rnq EBI.jpg
PDB 1jvt EBI.jpg
PDB 1srn EBI.jpg
PDB 1rsm EBI.jpg
PDB 2g4w EBI.jpg
PDB 1z3p EBI.jpg
PDB 1aqp EBI.jpg
PDB 1rbn EBI.jpg
Terms of Use   Search of the Day