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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.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
A ball and stick + ribbons model of Human Growth Hormone, also known as Somatotropin.
Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.
Inside protein molecule
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
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.
mRNA (multicoloured strand) is decoded in a ribosome to produce an aminoacid chain, that folds into a protein (red). tRNA (dark violet) molecules carry single aminoacids that are incoporated into the growing chain.
Chromosome structure with telomeres at the ends.
3D cartoon and Gaussian surface models, PDB 2j0D, white background.
Abstract large group of metallic sphere particles background. Metaverse background concept.
A ball and stick model of Human Insulin. Isolated on black.
Biological protein and molecule, 3d rendering. 3D illustration.
Ribonucleic acid strands consisting of nucleotides important for protein bio-synthesis - 3d illustration
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.
Alzheimer's disease. Pathological Tau protein (red-orange) phosphorylation (yellow) leads to disintegration of microtubuli and aggregation to neurofibrillary tangles (orange) in a neuron axon. The transport of synaptic vesicles(spheres) is disrupted.
Cells in the body examined by endoscope
3D cartoon and Gaussian surface models, chain id color scheme,  PDB 2iw2, white background
DNA A-T Pair
3d rendering of Antibody drug conjugates (ADCs) are targeted medicines that deliver chemotherapy agents to cancer cells
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
Biological protein and molecule, 3d rendering. 3D illustration.
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).
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.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Slice of natural crystal for patterns and textures use with high resolution.
Free Images: "bestof:PDB 2ems EBI.png All alpha proteins Acyl-CoA binding protein-like Second domain of FERM Second domain of FERM Radixin All beta proteins PH domain-like barrel PH"
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