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The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.
Nirmatrelvir inhibits the 3C-like protease of the SARS-CoV 2 virus. The coronavirus 3CL hydrolase enzyme, also known as the main protease, is essential for the maturation of the virus.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background
A ball and stick + ribbons model of beta-secretase - a protein that is important in forming healthy peripheral nerve cells, but is also involved in the onset of Alzheimer's disease.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Molecular Model of Infliximab, or Remicade, a monoclonal antibody against tumour necrosis factor alpha (TNF-α), which is used to treat autoimmune diseases
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
Immunoglobulin G (IgG) - 3d rendered image. Microbiology illustration  the structure of an antibody. The Y-shaped structure. IgG is the most common type of antibody.
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Ovarian Cancer Cell
The GABAA receptor is an ionotropic receptor and ligand-gated ion channel. Its endogenous ligand is γ-aminobutyric acid, the major inhibitory neurotransmitter in the central nervous system. 3D cartoon model with reduced opacity, white background.
Natural abstract fluid art painting in alcohol ink technique. Soft dreamy colors create transparent wavy lines.
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.
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
Recombinant human insulin. 3d cartoon model based on protein data bank
Freshness capsule
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
DNA A-T Pair
3D cartoon and Gaussian surface models. PDB 2aai, white background.
Fictitious molecule model inside red and blue pill isolated on white.
Abstract Pink And Green Knot
A ball and stick + ribbons model of HIV protease - an enzyme that is the target of much AIDS and HIV research.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Liquid bubbles up Fluid Twirl
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
3D cartoon and Gaussian surface models, PDB 3hg3, white background
Molecular model of Thymine, 1 of 4 nucleobases to form DNA
Maltose or maltobiose or malt sugar is a disaccharide formed from two units of glucose joined with an alpha bond. 3d illustration
Medical Laboratory Research Background
Free Images: "bestof:PDB 1pu9 EBI.jpg Alpha and beta proteins a+b Acyl-CoA N-acyltransferases Nat Acyl-CoA N-acyltransferases Nat N-acetyl transferase NAT Catalytic domain of GCN5"
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(Portrait of Nat King Cole, New York, N.Y., ca. June 1947) (LOC) (4843738572).jpg
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(Portrait of Oscar Moore, Nat King Cole, and Wesley Prince, New York, N.Y., ca. July 1946) (LOC) (4931765097).jpg
(Portrait of Oscar Moore, Nat King Cole, and Wesley Prince, New York, N.Y., ca. July 1946) (LOC) (4932356396).jpg
(Portrait of Wesley Prince, Nat King Cole, and Oscar Moore, between 1938 and 1948) (LOC) (5268904477).jpg
(Portrait of Oscar Moore, Nat King Cole, and Wesley Prince, between 1938 and 1948) (LOC) (5269515462).jpg
(Portrait of Wesley Prince, Nat King Cole, and Oscar Moore, New York, N.Y., ca. July 1946) (LOC) (5268904625).jpg
(Portrait of Wesley Prince, Oscar Moore, and Nat King Cole, Zanzibar, New York, N.Y., ca. July 1946) (LOC) (4843124039).jpg
(Portrait of Wesley Prince, Oscar Moore, and Nat King Cole, Zanzibar, New York, N.Y., ca. July 1946) (LOC) (4931764613).jpg
(Portrait of Eddy Duchin, Wesley Prince, Nat King Cole, and Oscar Moore, New York, N.Y., ca. July 1946) (LOC) (4931771889).jpg
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