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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Chain of Amino Acid. Proteins consist of one or more chains of amino acids called polypeptides
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
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.
Cell Membrane and Molecules, 3d rendering. Computer digital drawing.
A model of a nucleosome. Isolated on black.
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
Bilayer Lipid Membrane - 3d rendered image of Cell Membrane Phospholipid Structure, Phospholipid bilayer of the cell membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Molecular Model of Human Insulin with disulfide bonds shown.
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
Chain of amino acid or bio molecules called protein - 3d illustration
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
ATP Synthase Protein - 3d rendered image. Medical microbiology concept.  Structure and conformational states of the bovine mitochondrial ATP (Adenosine triphosphate) synthase. Chemical energy is synthesized in eukaryotic cells primarily. Hydrolase. Hologram view. HUD, FUI
Chloride channels conduct chloride anions across cell membranes, regulating the electrical excitation of skeletal muscles and the flow of salt and water across epithelial barriers. They also play an importante role in  regulation of pH, volume homeostasis, organic solute transport, cell migration, cell proliferation and differentiation.Genetic defects in Cl- channels underlie several familial muscle and kidney diseases.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
3D cartoon and Gaussian surface models, PDB 2gjx, white background
A conceptual image of an abstract network of multi-coloured organic strands arranged in a non regular pattern all connected together in a complex manner. The network is made from smaller multi-coloured squares and polyhedra, in vivid colours against a pastel toned background. Shows background and foreground elements to the structure.
Biological protein and molecule, 3d rendering. 3D illustration.
Inside protein molecule
Dna structure on science background. 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.
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
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Close up of cristal beads
C-reactive protein (CRP), an annular (ring-shaped), protein found in blood plasma. It is thought to assist in complement binding to foreign and damaged cells and enhances phagocytosis by macrophages.
Cells in the body examined by endoscope
Free Images: "bestof:PDB 2fkw EBI.jpg Membrane and cell surface proteins and peptides Light-harvesting complex subunits Light-harvesting complex subunits Light-harvesting complex"
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