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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.
Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.
Inside protein molecule
3D cartoon and Gaussian surface models, PDB 7las, chain id color scheme, white background
Textured cells under heavy magnification
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
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.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Antibodies in vivo. Antibody-based therapies have recently been studied. They ar\ne often the focus of attention in chemistry topics. It is a topic that should be developed very much. They are not generated by AI.
3D CG rendered image of scientifically accurate Feline Panleukopenia Virus (cat distemper virus) Capsid Structure based on PDB : 1FPV (surface style)
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
3D cartoon and Gaussian surface models, PDB 2j0D, white background.
Particles, medical concept
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.
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.
c-Myc and Max transcription factors bound to DNA. 3D illustration. Atoms shown as spheres with conventional color coding.
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
Biological protein and molecule, 3d rendering. 3D illustration.
DNA A-T Pair
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Freshness capsule
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
A model of the phospholipid bilayer structure that makes up living cells and their contents. Its raw, beautiful appearance evokes images of biology and biochemistry. It can be used in magazines and textbooks and on the covers of presentations.\nThis image was not created by AI.
3d rendered Gastric inhibitory polypeptide (GIP, glucose-dependent insulinotropic peptide) endocrine protein hormone, 3D illustration
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Chain of amino acid or bio molecules called protein - 3d illustration
Cells in the body examined by endoscope
Free Images: "bestof:PDB 1dg3 EBI.jpg All alpha proteins Interferon-induced guanylate-binding protein 1 GBP1 C-terminal domain Interferon-induced guanylate-binding protein 1 GBP1"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Complement pathway.svg
Stat domain structure (zh-cn).svg
Hepatitis B virus v2.svg
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