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3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
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.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Abstract geometric shape
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
DNA A-T Pair
Tafamidis is a medication used to delay loss of peripheral nerve function in adults with familial amyloid polyneuropathy. 3d illustration
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
3D cartoon and Gaussian surface models, PDB 6vg8, white background
A ball and stick + ribbons model of HIV protease - an enzyme that is the target of much AIDS and HIV research.
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.
Chemical science background
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
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Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration
Rendered Remdesivir molecule in 3D, an experimental drug from Gilead, used to cure the first case of 2019-nCoV in the United States (for a patient at Seattle, Washington). The model showed accurate atom connection and stereochemistry, based on the chemical structure available in public space from U.S. National Library of Medicine, which was professionally checked. Color symbols - green=carbon, red=oxygen, blue=nitrogen, white=hydrogen, purple=phosphorus
3D cartoon and Gaussian surface models, chain id color scheme, PDB 4ci9, white background
A ball and stick model of Ethyl Eicosapentaenoic Acid or E-EPA. It is an omega-3 polyunsaturated fatty acid.
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.
Human had writing word endorphins and chemical formula. Endorphins are among the brain chemicals known as neurotransmitters, which function to transmit electrical signals within the nervous system
hormone medicine science chemistry oxytocin love health care chemical oxytocin molecular formular biology concept atom icon object brain organic structure drug element feeling human dopamine serotonin
molecular model of Sovaldi (generic name: Sofosbuvir), the most popular drug to treat hepatitis C infection
Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration
3D cartoon and Gaussian surface models. PDB 3kqg, chain id color scheme, white background.
A ball and stick model of a molecule of Human Glucagon, a hormone produced in the pancreas and used by the body to raise levels of glucose in the blood. Glucagon worksin the opposite manner to Insulin, which lowers levels of glucose in the blood - together they work to keep glucose levels stable.
Abstract Pink And Green Knot
Computer-rendered drug molecule hydroxychloroquine, which showed efficacy to treat COVID-19 patients and was mentioned by President Trump at White House briefing. Color symbols - red=oxygen, blue=nitrogen, white=hydrogen, green-chlorine.
Interleukin 13 (IL-13) cytokine protein. 3D illustration. Atoms shown as spheres with conventional color coding.
Molecular model of Adenosine triphosphate,  or Adenosine-5'-triphosphate (ATP)
Free Images: "bestof:PDB 1r0r EBI.jpg Small proteins Kazal-type serine protease inhibitors Kazal-type serine protease inhibitors Ovomucoid domain III-like Ovomucoid domains EBI"
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