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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

alien structure made of white spheres and flowing glass liquid, molecular, hi-tech concept, abstract design element

Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering

A model of a transcription factor binding to a strand of DNA. Transcription factors are proteins which bind to specific sequences of DNA, enabling and controlling the copying of genetic data.

Science background with molecule or atom

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

3D cartoon and Gaussian surface models, PDB 4bci, white background

Proteasomes are a large molecular machine that degrade unneeded or damaged proteins that have been tagged with polyubiquitin (yellow). The ubiquitin hydrolase (violet) detaches ubiquitin from the protein, that is unfolded and degraded into small peptides (bottom). Source: PDB entry 5GJQ

Ball and stick 3D render of the caffeine molecular structure.

Fresh vegetables, fruits and seeds on black table, flat lay. Sources of essential amino acids

This computer-generated image vividly illustrates the invasive Group A Streptococcal bacteria, as they would appear under a microscope. This visual representation helps to understand the microscopic world of Group A Streptococcus and its potential to cause serious diseases.

Proliferating cell nuclear antigen (PCNA) is a DNA clamp that acts as a processivity factor for DNA polymerase δ in eukaryotic cells and is essential for replication. PCNA is a homotrimer and achieves its processivity by encircling the DNA, where it acts as a scaffold to recruit proteins involved in DNA replication, DNA repair, chromatin remodeling and epigenetics. 3D cartoon and Gaussian surface models, chain instance color scheme, based on PDB 3wgw, white background.

Molecule with biology and chemical concept, 3d rendering. Digital drawing.

A molecular model of Bisphenol A or BPA. It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses. Isolated on white.

Calcium carbonate chip in chemical watch glass with molecular structure on white laboratory table. Top view

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Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.

Close up of a Petri dish with blue specimens in it

Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration

Slice of natural crystal for patterns and textures use with high resolution.

The RNA dependent RNA polymerase (RdRP, blue) of catalyzes the replication of the viral RNA from an RNA template (violet) producing a complementary RNA strand (orange) by attachment of single ribonucleosides. Source: PDB entry 7l1f.

3D cartoon Gaussian surface models, chain instance color scheme, based on PDB 1jlh, white background.

Molecular model of lactose, a disaccharide sugar in milk.

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