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The LDL-receptor (red) is a membrane protein found in almost every human cell. It binds to the apoprotein B100 from LDL-particles and mediates their internalization (endocytosis) in the cell. This occurs in almost all cells but mainly in the liver where it removes about 70 % of LDL from the circulation.

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.

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

A ball and stick model of Human Insulin. Isolated on black.

3d rendered Gastric inhibitory polypeptide (GIP, glucose-dependent insulinotropic peptide) endocrine protein hormone, 3D illustration

3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background

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

Low-density lipoprotein (LDL) particles transport the water insoluble lipids like cholesterol, phospholipids, triglycerids and certain vitamins in blood plasma from the liver to other organs and tissues. A single LDL particle contains 3.000 to 6.000 fat molecules and a single apolipoprotein B molecule, a large protein (depicted in blue), building the surface with the phospholipids (depicted in orange with a blue cap) and cholesterol molecules (depicted in orange with a violet cap).

$What micro plastic is made of - Chemical ingredients.\nClose up of microplastic on finger concept of water pollution and global warming$

Gold serum with bubble inside drop on skin cell for professional skin treatment product. 3D rendering.

Intracellular transport, kinesin motor proteins, orange, transport molecules moving across microtubules, 3D illustration

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

p53 (blue) tagged with ubiquitin (yellow) is degraded into small peptides by a proteasome (violett). p53 prevents cancer formation and acts as a guardian of the genome. Mutations in the p53 gene contribute to about half of the cases of human cancer.

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

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

nanotechnology and abstract graphene structures

A Petri dish with colonies from a culture of Kluyveromyces lactis, a yeast commonly used for genetic studies and industrial applications

Chain or ribbon diatom, a type of algae.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 2iw2, white background

The binding of LDL particles to the LDL receptors mediates the endocytosis of the particles through clathrin coated vesicles, which a then processed in the inner cell.

Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.

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.

Coronavirus, SARS‐Cov‐2 infects a humain cell, the virus enter by using a spike protein attache to a receptor on cells called ACE2

Myxoid liposarcoma. Myxoid/round cell liposarcoma, or MRCLS, is one of several types of liposarcoma. Liposarcoma is a rare cancer that grows in the cells that store fat in the body. MRCLS usually grows in the arms and legs. These tumors grow slowly, and they can spread to other parts of the body

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