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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
A ball and stick model of the common sugar sucrose.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
medical concept
Tetradecylthioacetic acid molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
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]
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Chemical formula of Cortisol
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.
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.
cod liver omega 3 capsules fish oil in the shape of a fish with a place for text on a blue background
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.
Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.
Molecular Model of Vitamin D.
Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.
Chemical formula of Progesterone
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Hexagonal Grid
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
Liquid bubbles up Fluid Twirl
Calcium carbonate chip in chemical watch glass with molecular structure on white laboratory table. Top view
Molecular Model of Penicillin,
Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering
Chemical formula of Testosterone
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
A molecular model of Bisphenol A or BPA.  It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses.   Isolated on white.
Science background with molecule or atom
Cancer Drug Molecule
Organic Carnauba Wax in Chemical Watch Glass with molecular structure place next to beaker and \nPlatycerium stemaria fern. Chemical ingredient used in cosmetic industry.
DNA A-T Pair
Free Images: "bestof:Mechanism for the binding of ATP and then Ubiquitin substrate to the ubiquitin activating enzyme.png en A mechanism showing how ATP and the ubiquitin substrate"
Simple mechanism.svg
Simple mechanism - PT.svg
P450cycle.svg
Substrate-level phosphorylation generating ATP.svg
ACAC mechanism (zh-cn).svg
PKARII.svg
Nucleotides syn1.svg
Steatosis.svg
KinEnzymo(en).svg
Binding sites enzyme inhibitors.svg
Fmoc-cleavage-e1cb.svg
Catalisi enzimatica.svg
KinEnzymo(sr).svg
KinEnzymo(pl).svg
Animal mitochondrion diagram en (edit).svg
Animal mitochondrion diagram unlabelled.svg
(Z)-9-tricosene biosynthesis.svg
Mechanism for the binding of ATP and then Ubiquitin substrate to the ubiquitin activating enzyme.png
Ubiquitin-activating enzyme bound to ATP and ubiquitin substrate.png
Ubiquitin-activating enzyme bound to Ubiquitin.png
Simple mechanism of enzyme reaction (zh-tw).png
Ubiquitin activating enzyme cysteine highlighted.png
Cys and Arg active site of ubiquitin activating enzyme.png
ACAC mechanism.png
Anthrax-toxin-edema-factor+calmodulin 1XVF.png
Enzyme-substrate binding.png
PDB 1yov EBI.jpg
PDB 1tt5 EBI.jpg
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PDB 3dbh EBI.png
PDB 3dbl EBI.png
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ATP-ADP Translocase.JPG
Induced fit.JPG
Nucleophilic Epoxidation Mechanism2.tiff
DFMO mechanism.png
PDB 2hgs EBI.jpg
PDB 1m0w EBI.jpg
PDB 1m0t EBI.jpg
1NBF-KGramatikoff.jpg
PDB 2io8 EBI.jpg
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1680x1050 pdh regulation.png
1400x1048 pdh regulation.png
Kynureninase reaction.png
Uracil base glycosidase.jpg
Ubiquitin 1UBQ surface.png
Substrate-like inhibitors and binding to the DPP-4 complex.png
Ubiquitin cartoon.png
Ubiquitin surface.png
ATP binding domain.png
Simple mechanism of enzyme reaction zh.png
PDB 1jw9 EBI.jpg
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Aromatase mechanism.png
BVR mechanism.png
PDB 2gmi EBI.jpg
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PDB 3gb1 EBI.jpg
PDB 1p7e EBI.jpg
PDB 1p7f EBI.jpg
PDB 2oed EBI.jpg
PDB 1fcl EBI.jpg
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