Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
3D model of a protein molecule. The spatial oriented structure of the macromolecule.
3D cartoon and Gaussian surface models. PDB 2aai, white background.
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.
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.
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.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Freshness capsule
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
Ovarian Cancer Cell
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.
The GABAA receptor is an ionotropic receptor and ligand-gated ion channel. Its endogenous ligand is γ-aminobutyric acid, the major inhibitory neurotransmitter in the central nervous system. 3D cartoon model with reduced opacity, white background.
Abstract background with molecules spheres
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.
Natural abstract fluid art painting in alcohol ink technique. Soft dreamy colors create transparent wavy lines.
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.
Freshness capsule
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background
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.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
3d Golgi apparatus
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.
DNA A-T Pair
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Scientific background. 3D render.
3D cartoon and Gaussian surface models, PDB 3hg3, white background
Abstract geometric shape
Free Images: "bestof:PDB 1r57 EBI.jpg Alpha and beta proteins a+b Acyl-CoA N-acyltransferases Nat Acyl-CoA N-acyltransferases Nat N-acetyl transferase NAT Hypothetical protein"
Hepatitis B virus v2.svg
Luther auf dem Totenbett Karlsruhe.jpg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
PDB 1r57 EBI.jpg
PDB 1mk4 EBI.jpg
PDB 2h5m EBI.jpg
PDB 2gan EBI.jpg
PDB 1yk3 EBI.jpg
PDB 2aj6 EBI.jpg
PDB 1yvk EBI.jpg
PDB 1xmt EBI.jpg
PDB 2q44 EBI.jpg
PDB 2evn EBI.jpg
PDB 1xeb EBI.jpg
PDB 1wwz EBI.jpg
PDB 1yx0 EBI.jpg
PDB 1y7r EBI.jpg
PDB 1yre EBI.jpg
PDB 1yvo EBI.jpg
PDB 2bl1 EBI.jpg
PDB 2d4p EBI.png
PDB 2d4o EBI.png
PDB 1ghe EBI.jpg
PDB 1j4j EBI.jpg
PDB 1s7k EBI.jpg
PDB 1s7f EBI.jpg
PDB 1z9u EBI.jpg
PDB 1s7n EBI.jpg
PDB 1s7l EBI.jpg
PDB 2fck EBI.jpg
PDB 1tiq EBI.jpg
PDB 1b87 EBI.jpg
PDB 1m4i EBI.jpg
PDB 1cm0 EBI.jpg
PDB 1m1d EBI.jpg
PDB 1q2d EBI.jpg
PDB 1q2c EBI.jpg
PDB 1qso EBI.jpg
PDB 1fy7 EBI.jpg
PDB 1mj9 EBI.jpg
PDB 1kuv EBI.jpg
PDB 1kuy EBI.jpg
PDB 1i21 EBI.jpg
PDB 1nsl EBI.jpg
PDB 1p0h EBI.jpg
PDB 1ozp EBI.jpg
PDB 1s3z EBI.jpg
PDB 1s5k EBI.jpg
PDB 1u6m EBI.jpg
PDB 2b5g EBI.jpg
PDB 2f5i EBI.jpg
PDB 2fxf EBI.jpg
PDB 2b4b EBI.jpg
PDB 2ge3 EBI.jpg
PDB 2bsw EBI.jpg
PDB 2atr EBI.jpg
PDB 2eui EBI.jpg
PDB 2i6c EBI.jpg
PDB 2fiw EBI.jpg
PDB 2vbq EBI.png
PDB 2jdd EBI.png
PDB 2rc4 EBI.png
PDB 1n71 EBI.jpg
PDB 2a4n EBI.jpg
PDB 1bo4 EBI.jpg
PDB 1m44 EBI.jpg
PDB 1m4g EBI.jpg
PDB 1m4d EBI.jpg
PDB 1ygh EBI.jpg
PDB 1qst EBI.jpg
PDB 1qsr EBI.jpg
PDB 1qsn EBI.jpg
PDB 1pu9 EBI.jpg
PDB 1pua EBI.jpg
PDB 5gcn EBI.jpg
PDB 1z4r EBI.jpg
PDB 1qsm EBI.jpg
PDB 1bob EBI.jpg
PDB 1mja EBI.jpg
PDB 1mjb EBI.jpg
PDB 1cjw EBI.jpg
PDB 1kux EBI.jpg
PDB 1b6b EBI.jpg
PDB 1l0c EBI.jpg
PDB 1i12 EBI.jpg
PDB 1i1d EBI.jpg
PDB 1ufh EBI.jpg
PDB 1on0 EBI.jpg
PDB 1q2y EBI.jpg
PDB 1vhs EBI.jpg
PDB 2c27 EBI.jpg
PDB 1s60 EBI.jpg
PDB 2cy2 EBI.jpg
PDB 1wk4 EBI.jpg
PDB 1vkc EBI.jpg
PDB 1y9w EBI.jpg
PDB 2g3t EBI.jpg
PDB 2b3u EBI.jpg
PDB 2jev EBI.jpg
PDB 2b58 EBI.jpg
Terms of Use   Search of the Day