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organic chemistry, model of the protein molecule - illustration of a biological particle
Abstract geometric shape
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 Human Growth Hormone, also known as Somatotropin.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 4ci9, white background
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
A molecule of sucrose, showing thermal ellipsoids.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
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.
3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, white background
Molecular Model of Cytochrome P450, CYP2D6, a major protein for drug metabolism
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.
Multi-colored connected spheres building a molecular structure.
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.
Spherical molecule render. The model is isolated on white and could be easily extracted as well as used with the background.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
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.
3D cartoon and Gaussian surface models, PDB 2e5d, white background
Molecular Model of Cytochrome P450, CYP1A2, a major protein for drug metabolism
Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration
Caffeine Molecule with clipping path
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
3D molecule model isolated on black. Clipping path included.Similar images:
Bovine beta-lactoglobulin protein, 3D structure. Major whey protein, present in cow milk. Important food allergen.
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background
Molecular model of lactose, a disaccharide sugar in milk.
Free Images: "bestof:PDB 2ghk EBI.jpg All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases CCP-like Ascorbate peroxidase EBI License 2ghk November 16 2008"
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Thyroid hormone synthesis.svg
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