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The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.

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

3D cartoon and Gaussian surface models, PDB 6vg8, white background

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.

c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.

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.

DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology.

Molecular Model of Human Insulin with disulfide bonds shown.

Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration

3D cartoon model, secondary structure color scheme, PDB 4krf, white background

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

A ball and stick + ribbons model of human Interleukin 2 or IL-2. Interleukin is a hormone which acts as a signalling molecule for the immune system.

Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.

G-protein-coupled receptors (GPCRs) have central roles in intercellular communication. From left to right, Rhodopsin activated by light, T-cell receptor activated by MHC and antigen (green), dopamine receptor activated by dopamine (red), GABA B receptor activated by the agonist baclofen. G alpha proteins (light blue) activate the phosphodiesterase 6 (left), which degrades cGMP, and adenylyl cyclase (right), which produces cAMP. cAMP activates the protein kinase C. Source: PDB entries 6oy9, 7aue, 1jl4, 1fyt, 7eb2, 6r3q, 3tnp, 7jsn

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.

Brain-derived neurotrophic factor (3d), also known as BDNF, a protein that supports the survival of existing neurons, and encourages the growth and differentiation of new neurons and synapses.

3D cartoon model, secondary structure color scheme, PDB 2rfn, white background

Image of drug delivery using micelles made with nanotechnology technology to deliver drugs directly to the affected area

A ball and stick + ribbons model of HIV protease - an enzyme that is the target of much AIDS and HIV research.

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

Single strand ribonucleic acid, RNA research

Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.

Prions are misfolded proteins with the ability to transmit their misfolded shape onto normal variants of the same protein. They characterize several fatal and transmissible neurodegenerative diseases in humans and many other animals.

The protein responsible for Alzheimer's disease has recently been identified. It has been suggested that plaques formed by amyloid-β sheets may interfere with transmission at neuronal synapses. This image uses images of the plaques and the atrophied brain caused by Alzheimer's disease as a backdrop to illustrate the horror of the disease and the realistic phenomenon in vivo.

3D model of a protein molecule. The spatial oriented structure of the macromolecule.

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