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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).

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

$The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.$

3D cartoon and Gaussian surface models, PDB 2j0D, white background.

Biological protein and molecule, 3d rendering. 3D illustration.

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.

DNA close-up, DNA Molecule Model, DNA Strands, DNA animation

Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation

Inhibition of mTORC1 by rapamycin leads to immunosuppression, prevention of trasplant rejection and inhibition of tumor growth.

Chromosome structure with telomeres at the ends.

Structure of novel coronavirus spike receptor-binding domain (pink) complexed with its receptor ACE2 (blue), surface modeel, white background

$Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.$

Ribonucleic acid strands consisting of nucleotides important for protein bio-synthesis - 3d illustration

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

IG-g like Antibodies binding to a foreign protein.

Textured cells under heavy magnification

orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).

Chain of Amino Acid. Proteins consist of one or more chains of amino acids called polypeptides

Conjugal of DNA to primary antibodies with protein G and linker for multiplexed cellular targeting: 3D rendering

A ball and stick + ribbons model of beta-secretase - a protein that is important in forming healthy peripheral nerve cells, but is also involved in the onset of Alzheimer's disease.

Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

Molecular Model of Human Insulin with disulfide bonds shown.

TRPV1 is an ion channel that senses heat, regulates the body temperature and contributes to pain sensation. Source: PDB entry 5is0.

organic chemistry, model of the protein molecule - illustration of a biological particle

A model of a nucleosome. Isolated on black.

Free Images: "bestof:PDB 3d5b EBI.png All alpha proteins PABP domain-like Ribosomal protein L20 Ribosomal protein L20 Ribosomal protein L20 All beta proteins L21p-like L21p-like"

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2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg

Main protein structure levels pl - secondary structure.svg

Protein primary structure zh (zh-tw).svg

Cell membrane detailed diagram blank.svg

Beta sheet bonding antiparallel-color.svg

Acides aminés propriétés diagramme Venn.svg