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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.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
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.
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Abstract geometric shape
3D cartoon and Gaussian surface models. PDB 2aai, 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.
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Artificial molecular structure in many colors. Horizontal composition, isolated on white background.
The amyloid beta peptide (light blue) is a component of the amyloid precursor protein, which is bound to a cell membrane. The gamma secretase enzyme cuts the free form, that aggregates to amyloid plaques. Source: PDB entries 2beg, 1mwp
3d structure of l-glucose molecule.
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.
Abstract geometric shape
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, 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.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Structure of Escherichia Coli
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
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
Beta-alanine or β-Alanine molecule. It is naturally occurring beta amino acid. Molecular model. 3D rendering. Illustration
3D cartoon and Gaussian surface models, PDB 7s03, 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.
Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.
molecular model of Sovaldi (generic name: Sofosbuvir), the most popular drug to treat hepatitis C infection
PETase (left) degrades  polyethylene terephtalate (PET) into monohydroxyethyl terephthalate (MHET) and MHETase degrades MHET ethylene glycol (EG) and terephthalic acid (TPA).
Scientific background. 3D render.
Free Images: "bestof:PDB 1uta EBI.jpg Alpha and beta proteins a+b Ferredoxin-like Sporulation related repeat Sporulation related repeat Cell division protein FtsN EBI License 1uta"
Notable mutations.svg
Burlington_County_Prison_(INTERIOR_-_MURDERER'S_CELL_-_SECOND_FLOOR).jpg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Adherens Junctions structural proteins-fr.svg
Adherens Junctions structural proteins.svg
Cellular tight junction-en.svg
Cellular tight junction-fr.svg
St clair tunnel train.jpg
Burlington_County_Prison_(EXTERIOR_-_MAIN_ENTRANCE).jpg
Burlington_County_Prison_(EXTERIOR_-_DETAIL_STEPS_AND_DOOR_-_WEST_ELEVATION).jpg
Burlington_County_Prison_(INTERIOR_-_MAIN_DOOR_WITH_ORIGINAL_HARDWARE).jpg
North from the Smithsonian Institution4a11698v.jpg
Washington, D.C. east from Smithsonian Institute4a11697v.jpg
Great flying birdcage, zoo park 4a13184v.jpg
An Autumn pathway, zoo park 4a13181v.jpg
Black birches, Zoo park 4a30548v.jpg
Snow, Washington, D.C. 41914v.jpg
Washington from the Monument 4a10393v.jpg
Washington from the Monument 4a10395v.jpg
Bowery men waiting for bread in bread line, New York City, Bain Collection.jpg
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portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
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