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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.
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.
3D cartoon and Gaussian surface models, PDB 2zva, white background
A molecular model of Human Insulin. Isolated on black.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Inside protein molecule
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
The prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3). The active site is the big cavity on the lower right side of the molecule
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
3D cartoon model, secondary structure color scheme, PDB 4krf, white background
Chromosome structure with telomeres at the ends.
Calreticulin, a protein which binds to misfolded proteins and prevents them from being exported from the endoplasmic reticulum to the Golgi apparatus. 3d rendering.
Candida Auris Cells.  3D Render
3D model of a protein molecule. Endothelial tyrosine kinase receptor, a marker of angiogenesis.
Ovarian Cancer Cell
Rapamycin, also known as sirolimus is a macrolide compound that has immunosuppressant functions and prevents transplant rejection through the inhibition of  the protein complex mTORC1.
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. Hologram view. SEM.
3D cartoon and Gaussian surface models. PDB 3kqg, chain id color scheme, white background.
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Abstract geometric shape
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
Yeast cells - 3d rendered image SEM (scanning electron micrograph) view of cells of brewer's yeast (Saccharomyces cerevisiae).  It is used in the production of beer, wine and bread.
Ferritin is a protein that contains iron and is the primary form of iron stored inside of cells. 3D cartoon model, PDB 4y08, white background
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Segment of human collagen isolated on a white background
Neuron Network in the Brain. 3d Render
Free Images: "bestof:PDB 1w8v EBI.jpg All beta proteins Cyclophilin-like Cyclophilin-like Cyclophilin peptidylprolyl isomerase Cyclophilin eukaryotic EBI License 1w8v November 16"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
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