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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.

A ball and stick model of a molecule of Human Interferon. Interferons are proteins important in the working of the immune system and are produced in large numbers in the presence of viruses, bacteria, tumors and parasites. Interferons are used in drugs to combat cancer, multiple sclerosis, hepatitis B and C and other diseases. Isolated on white.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

TNF-alfa (blue) is the most potent proinflammatory cytokine and is crucial in the pathogenesis of PsA. TNF- inhibitors considerably relieve symptons in patients. A therapeutic antibody (adalimumab) blocks the receptor binding site of TNF-.

Registered Trademark Symbol Under The Snow

Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

$Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.$

Honeycomb with honey on petri dish over white background

After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

$Model of DNA Base Pair adenine (A) and thymine (T)\n\nFind more molecules in the Lightbox [url=http://www.istockphoto.com/search/lightbox/7500191][i] 'World of Molecules'[/i][/url], or contact me on customized design/rendering of any molecules in 3D (see some examples below). \n\n[img]http://www.drugmodel.com/360/superglassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/capsule900.jpg[/img] \n[img]http://www.drugmodel.com/360/glassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/heart900.jpg[/img] \n[img]http://www.drugmodel.com/360/viruskiller900.jpg[/img] \n[img]http://www.drugmodel.com/360/mesh900.jpg[/img] \n[img]http://www.drugmodel.com/360/cartoon900.jpg[/img] \n[img]http://www.drugmodel.com/360/photo900.jpg[/img] \n[img]http://www.drugmodel.com/360/ovoid900.jpg[/img] \n[img]http://www.drugmodel.com/360/swirlcone900.jpg[/img] \n[img]http://www.drugmodel.com/360/super900.jpg[/img] \n[img]http://www.drugmodel.com/360/glowing900.jpg[/img]$

Tetradecylthioacetic acid molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.

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, chain id color scheme, PDB 2y73, white background

A new antibiotic (zosurabalpin, red) traps lipopolysaccharide (orange) in the intermembrane transporter of the Gram-negative bacterium Acinetobacter baylyi

Infinity sign made out of multiple spheres and circular shapes against grey background.

Zearalenone or ZEN or RAL is a potent estrogenic metabolite. 3d illustration

Taq polymerase PCR enzyme: a heat-stable DNA polymerase protein that is the key component that makes the polymerase chain reaction (PCR) possible, which is essential for DNA cloning and sequencing

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Substrate-level phosphorylation generating ATP.svg

Reaction scheme competitive enzyme inhibition.svg

Reaction scheme non-competitive enzyme inhibition.svg

Reaction scheme uncompetitive enzyme inhibition.svg

Michaelis-Menten plot substrate excess inhibition.svg

Édouard_Adam_-_The_full-rigger_King_Ceolric_running_under_full_sail_(1881).jpg

Reni,_Guido_-_Saint_Sebastian_-_Google_Art_Project.jpg

Ubiquitin-activating enzyme bound to Ubiquitin.png

Ubiquitin-activating enzyme bound to ATP and ubiquitin substrate.png

Mechanism for the binding of ATP and then Ubiquitin substrate to the ubiquitin activating enzyme.png

Ubiquitin activating enzyme cysteine highlighted.png

Cys and Arg active site of ubiquitin activating enzyme.png

Transpeptidase with bound penicillin.png

Quinacrine mustard in Trypanothione reductase active site.png