Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
Vitamin B12 Concept
3D cartoon and Gaussian surface models, PDB 6vg8, white background
A space-filling molecular model of collagen, a fibrous protein that provides structural support in animals. It has a distinctive triple helix structure. Isolated on black.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
Inside protein molecule
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
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
29 October Republic Day of Türkiye text on a red shiny sphere with a partial Turkish flag on white background. Easy to crop for all your print sizes and social media needs.
3D cartoon and Gaussian surface models, PDB 7las, 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 structure of the protein molecule, tumor marker glioblastoma. X-ray crystalline model of the protein encoded by the MELK gene. 3D rendering.
Pink podiums on a tree branch with scattered colorful beads,
3D CG rendered image of scientifically accurate Enterobacteria Bacteriophage phiX174 Capsid Structure based on PDB : 1CD3 (capsomere)
Infinity sign made out of multiple spheres and circular shapes against grey background.
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
Drug in capsule that begins to dissolve in the body
3D cartoon and Gaussian surface models. PDB 2aai, white background.
Abstract geometric shape
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
DNA A-T Pair
Beta-alanine or β-Alanine molecule. It is naturally occurring beta amino acid. Molecular model. 3D rendering. Illustration
Artificial molecular structure in many colors. Horizontal composition, isolated on white background.
PETase (left) degrades  polyethylene terephtalate (PET) into monohydroxyethyl terephthalate (MHET) and MHETase degrades MHET ethylene glycol (EG) and terephthalic acid (TPA). The substrates in the binding sites are depicted in red.
Red cellular tissue, executives and pill-shaped pills
3D cartoon and Gaussian surface models, PDB 4bci, white background
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.
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Free Images: "bestof:PDB 1gm9 EBI.jpg Alpha and beta proteins a+b Ntn hydrolase-like N-terminal nucleophile aminohydrolases Ntn hydrolases Penicillin acylase catalytic domain"
PDB 1gm9 EBI.jpg
PDB 1gk9 EBI.jpg
PDB 1gkf EBI.jpg
PDB 1gm7 EBI.jpg
PDB 1e3a EBI.jpg
PDB 1h2g EBI.jpg
PDB 1fxh EBI.jpg
PDB 1gm8 EBI.jpg
PDB 1pnk EBI.jpg
PDB 1ajq EBI.jpg
PDB 1kec EBI.jpg
PDB 1k5q EBI.jpg
PDB 1ajp EBI.jpg
PDB 1jx9 EBI.jpg
PDB 1fxv EBI.jpg
PDB 1k7d EBI.jpg
PDB 1ai4 EBI.jpg
PDB 1ai5 EBI.jpg
PDB 1ajn EBI.jpg
PDB 1ai7 EBI.jpg
PDB 1ai6 EBI.jpg
PDB 1pnl EBI.jpg
PDB 1pnm EBI.jpg
PDB 1k5s EBI.jpg
PDB 1cp9 EBI.jpg
PDB 1fm2 EBI.jpg
PDB 1jw0 EBI.jpg
PDB 1keh EBI.jpg
PDB 1jvz EBI.jpg
PDB 1or0 EBI.jpg
PDB 1gk1 EBI.jpg
PDB 1gk0 EBI.jpg
PDB 1ghd EBI.jpg
PDB 1oqz EBI.jpg
PDB 2pva EBI.jpg
PDB 3pva EBI.jpg
PDB 2nlz EBI.jpg
PDB 1yar EBI.jpg
PDB 1ya7 EBI.jpg
PDB 1yau EBI.jpg
PDB 1pma EBI.jpg
PDB 1j2q EBI.jpg
PDB 1g0u EBI.jpg
PDB 1g65 EBI.jpg
PDB 2gpl EBI.jpg
PDB 2fak EBI.jpg
PDB 1ryp EBI.jpg
PDB 2f16 EBI.jpg
PDB 2fny EBI.jpg
PDB 1jd2 EBI.jpg
PDB 1z7q EBI.jpg
PDB 1iru EBI.jpg
PDB 1q5q EBI.jpg
PDB 1q5r EBI.jpg
PDB 1j2p EBI.jpg
PDB 2h6j EBI.jpg
PDB 3c91 EBI.png
PDB 3c92 EBI.png
PDB 3d29 EBI.png
PDB 2zcy EBI.png
PDB 3bdm EBI.png
PDB 3e47 EBI.png
PDB 1xfg EBI.jpg
PDB 1xff EBI.jpg
PDB 1ao0 EBI.jpg
PDB 1gph EBI.jpg
PDB 1ecf EBI.jpg
PDB 1ecg EBI.jpg
PDB 1ecc EBI.jpg
PDB 1ecj EBI.jpg
PDB 1ecb EBI.jpg
PDB 2j6h EBI.jpg
PDB 1jxa EBI.jpg
PDB 2bpl EBI.jpg
PDB 1e94 EBI.jpg
PDB 1ht1 EBI.jpg
PDB 1ht2 EBI.jpg
PDB 1hqy EBI.jpg
PDB 1g4a EBI.jpg
PDB 1g4b EBI.jpg
PDB 1ofh EBI.jpg
PDB 1kyi EBI.jpg
PDB 1ofi EBI.jpg
PDB 1g3i EBI.jpg
PDB 1ct9 EBI.jpg
PDB 2vdc EBI.png
PDB 1te5 EBI.jpg
PDB 1ned EBI.jpg
PDB 1g3k EBI.jpg
PDB 1jjw EBI.jpg
PDB 1m4y EBI.jpg
PDB 1apy EBI.jpg
PDB 1apz EBI.jpg
PDB 2gac EBI.jpg
PDB 1ayy EBI.jpg
PDB 2gaw EBI.jpg
PDB 1p4k EBI.jpg
PDB 9gaf EBI.jpg
PDB 1p4v EBI.jpg
PDB 9gac EBI.jpg
Terms of Use   Search of the Day