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.
3D cartoon and Gaussian surface models, PDB 6vg8, white background
Ring formation of thumbs ups like logos scattered into groups, symbolizing varied demographic positive opinions, crystal glass renders.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
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.
PKM2 plays key roles in reprogramming cancer cells from energy production to growth (Warburg Effect). The dimeric form of the enzyme is not only less active in glycolysis but can also move into the nucleus to promote the transcription of other cancer-causing genes. A substrate analogon (red) is bound to the active site. PKM2 is a target for anti-cancer therapies. PDB entry: 6WP3.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
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.
RNA molecule,Epigenetics concept.
3D cartoon model, secondary structure color scheme, PDB 4krf, white background
Abstract organic 3d shape,  information moving in virtual space
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
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.
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.
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.
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
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy
3D cartoon model, secondary structure color scheme, PDB 2ygt, white background
Freshness capsule
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
Inside protein molecule
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.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Intestinal microbiome,Probiotics health benefits,Gut bacteria,lactococcus, propionibacterium, bifidobacterium.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, 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.
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.
Free Images: "bestof:PDB 1p12 EBI.jpg All beta proteins Trypsin-like serine proteases Trypsin-like serine proteases Prokaryotic proteases alpha-Lytic protease EBI License 1p12"
Thyroid hormone synthesis-it.svg
Thyroid hormone synthesis.svg
PDB 1p12 EBI.jpg
PDB 2h5c EBI.jpg
PDB 1ssx EBI.jpg
PDB 2h5d EBI.jpg
PDB 1qrw EBI.jpg
PDB 1qq4 EBI.jpg
PDB 1tal EBI.jpg
PDB 1qrx EBI.jpg
PDB 2alp EBI.jpg
PDB 1p11 EBI.jpg
PDB 2ull EBI.jpg
PDB 1gbj EBI.jpg
PDB 1p01 EBI.jpg
PDB 1p02 EBI.jpg
PDB 6lpr EBI.jpg
PDB 3pro EBI.jpg
PDB 7lpr EBI.jpg
PDB 1gbb EBI.jpg
PDB 1gbf EBI.jpg
PDB 1gba EBI.jpg
PDB 1gbk EBI.jpg
PDB 1p05 EBI.jpg
PDB 1gbc EBI.jpg
PDB 5lpr EBI.jpg
PDB 1gbl EBI.jpg
PDB 3lpr EBI.jpg
PDB 1p03 EBI.jpg
PDB 1gbd EBI.jpg
PDB 9lpr EBI.jpg
PDB 2lpr EBI.jpg
PDB 1p09 EBI.jpg
PDB 1gbm EBI.jpg
PDB 8lpr EBI.jpg
PDB 1gbh EBI.jpg
PDB 1gbi EBI.jpg
PDB 1p10 EBI.jpg
PDB 1gbe EBI.jpg
PDB 1p06 EBI.jpg
PDB 1p04 EBI.jpg
PDB 4pro EBI.jpg
PDB 1arb EBI.jpg
PDB 1arc EBI.jpg
PDB 2sga EBI.jpg
PDB 1sgc EBI.jpg
PDB 4sga EBI.jpg
PDB 2gkv EBI.jpg
PDB 2nu1 EBI.jpg
PDB 2nu0 EBI.jpg
PDB 1qy6 EBI.jpg
PDB 2qaa EBI.png
PDB 2qa9 EBI.png
PDB 1sgp EBI.jpg
PDB 1ct4 EBI.jpg
PDB 1ct2 EBI.jpg
PDB 3sgb EBI.jpg
PDB 1sgr EBI.jpg
PDB 1ct0 EBI.jpg
PDB 1sgq EBI.jpg
PDB 1sgd EBI.jpg
PDB 2nu3 EBI.jpg
PDB 1sgn EBI.jpg
PDB 2sge EBI.jpg
PDB 4sgb EBI.jpg
PDB 3sga EBI.jpg
PDB 5sga EBI.jpg
PDB 1hpg EBI.jpg
PDB 2nu2 EBI.jpg
PDB 2o8l EBI.jpg
PDB 1wcz EBI.jpg
PDB 1l1j EBI.jpg
PDB 2qf3 EBI.png
PDB 2rce EBI.png
PDB 2qf0 EBI.png
PDB 2r3u EBI.png
PDB 1ds2 EBI.jpg
PDB 1cso EBI.jpg
PDB 2nu4 EBI.jpg
PDB 2sgq EBI.jpg
PDB 2sgf EBI.jpg
PDB 3sgq EBI.jpg
PDB 1sge EBI.jpg
PDB 1sgy EBI.jpg
PDB 2sgd EBI.jpg
PDB 2sgp EBI.jpg
PDB 2z9i EBI.png
PDB 2r3y EBI.png
PDB 3cs0 EBI.png
PDB 2zle EBI.png
PDB 1os8 EBI.jpg
PDB 1sgt EBI.jpg
PDB 1oss EBI.jpg
PDB 2sfa EBI.jpg
PDB 1exf EBI.jpg
PDB 1dua EBI.jpg
PDB 1qtf EBI.jpg
PDB 1dt2 EBI.jpg
PDB 1p3c EBI.jpg
PDB 1p3e EBI.jpg
Terms of Use   Search of the Day