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A ball and stick + ribbons model of Human Growth Hormone, also known as Somatotropin.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.
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 and Gaussian surface models, PDB 2j0D, white background.
Inside protein molecule
3D rendering of forming human apoptosome molecule contains seven Apaf-1 molecules symmetrically arranged in a wheel-shaped structure to form a central hub
Cells in the body examined by endoscope
A model of a nucleosome. Isolated on black.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Biological protein and molecule, 3d rendering. 3D illustration.
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
molecular model of Sovaldi (generic name: Sofosbuvir), the most popular drug to treat hepatitis C infection
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
An ECG test chart with pills and a stethoscope
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Vitamin D Capsule with D3 Element. Dietary Supplements. 3D Render
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.
Liquid bubbles up Fluid Twirl
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
A model of a molecule of arginine, an amino acid. Amino acids are the building blocks of proteins and have many functions in metabolism. In particular, Arginine has an important function in the immune system, wound healing and cell division.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Chemical formula of Progesterone
Calcium-binding atopy-related autoantigen 1, a protein that in humans is encoded by the CBARA1 gene.  A calcium binding atopy-related autoantigen. 3d rendering.
Vitamin D3 Capsules. 3D Render
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.
DNA A-T Pair
3D cartoon and Gaussian surface models, chain id color scheme,  PDB 2iw2, white background
Conceptual large group of Covid-19 viruses with copy space. Covid-19 virus illustration downloaded from CDC than layered and manipulated. for more information please visit Centers for Disease Control and Prevention web site: https://www.cdc.gov/media/subtopic/images.htm
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2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Proteinoxidation 03.svg
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