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A ball and stick model of Human Insulin. Isolated on black.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Biological protein and molecule, 3d rendering. 3D illustration.
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.
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Inside protein molecule
Proteasomes are molecular machines for breaking down proteins called proteolysis, only target proteins that have been marked for destruction called ubiquitin to the target protein, 3d rendering
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Cells in the body examined by endoscope
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
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. chain id color scheme, PDB 5zjd, white background.
DNA A-T Pair
Cosmetic serum Oil drop on Saggy skin cell, Skin Repair, moisturizer, collagen serum, advertising background ready to use, 3D rendering
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
Protein enzymes fold into their structure to fulfill their function - 3d illustration
Liquid-liquid phase separation (LLPS), which is the separation between liquids present in the cell. Organelle without membrane.Droplets usually have an important function, but can also cause disease if they lose their function.\nThis image was not created by AI.
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.
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.
Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.
A ball and stick model of a Polytetrafluoroethylene molecule, also known as PTFE or most commonly Teflon. It is a polymer consisting of only carbon and fluorine atoms. It is used as a non-stick coating for cookware, as a lubricant, and it is also used to contain highly reactive chemicals as it is extremely non-reactive.
Biological protein and molecule, 3d rendering. 3D illustration.
molecular structure digital concept
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
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.
Deacetoxycephalosporin-C synthase (DAOCS) is a mononuclear ferrous enzyme that transforms penicillins into cephalosporins. 3D cartoon and Gaussian surface models, chain instance color scheme, based on PDB 1uof, white background.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Free Images: "bestof:PDB 1nqe EBI.jpg Membrane and cell surface proteins and peptides Transmembrane beta-barrels Porins Ligand-gated protein channel Outer membrane cobalamin"
Lipid raft organisation scheme.svg
Hepatitis B virus v2.svg
Cell membrane detailed diagram blank.svg
TOM complex.svg
Human genome by functions.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Cellular tight junction keys.svg
Cell membrane detailed diagram id.svg
Cell membrane detailed diagram en.svg
Scheme facilitated diffusion in cell membrane-zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-en.svg
Scheme facilitated diffusion in cell membrane-zh.svg
Scheme facilitated diffusion in cell membrane-eo.svg
Scheme facilitated diffusion in cell membrane-ca.svg
Bacteria.svg
Euglenid pellicula scheme.svg
Exocytosis types.svg
Endocytosis types.svg
Endocytosis types-fr.svg
Diagram human cell nucleus numbered version.svg
CD8 receptor.svg
Insulin glucose metabolism ZP (it).svg
Insulin glucose metabolism ZP-he.svg
Lipid bilayer fusion.svg
Endocytoza typy.svg
Insulin glucose metabolism ZP (ru).svg
Adherens Junctions structural proteins-LangNeutral.svg
Adherens Junctions structural proteins.svg
Gap cell junction keys.svg
Design_Analysis_of_the_F6F-5_Hellcat.png
PDB 1nqe EBI.jpg
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PDB 7prn EBI.jpg
PDB 1h6s EBI.jpg
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