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A ball and stick model of Human Insulin. Isolated on black.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Biological protein and molecule, 3d rendering. 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.
3D cartoon and Gaussian surface models. chain id color scheme, PDB 5zjd, white background.
Inside protein molecule
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
Backgrounds of Bacteria and Mold under the microscope in Lab.
Liver Fluke Section under light microscope with white background
After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
DNA A-T Pair
Biological protein and molecule, 3d rendering. 3D illustration.
A ribbons model of Human Insulin. Isolated on white.
Dna structure on science background. 3d illustration
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Molecular Model of Human Insulin with disulfide bonds shown.
Metastatic plasmacytoma, metastatic undifferentiated sarcoma. Microscopically show cellular material of mostly plasmacytiod cells. atypical mitoses are present. plasma cell tumor.
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
PAPS Smear study of a young women under microscopy showing Atrophic changes in uterus which is unusual at young age.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
HER2 (light blue)  locked in the inactive conformation by Trastuzumab (left) and Pertuzumab. Trastuzumab has drastically improved the prognosis of HER2-positive breast cancer patients.
Models of an antibody broadly antagonistic to HIV.  A challenge in AIDS and HIV research is producing a vaccine which elicits antibodies effective against the many variations of HIV proteins.Isolated on white.
3D cartoon and Gaussian surface models, chain id color scheme,  PDB 2iw2, white background
Lymphocytic myocarditis. Myocarditis is an inflammation of the heart muscle. Lymphocytic refers to the type of cell seen in the affected tissue. A lymphocyte is a type of immune function cell.
Free Images: "bestof:PDB 1smx EBI.jpg All beta proteins OB-fold Nucleic acid-binding proteins Cold shock DNA-binding domain-like S1-domain of Ribonuclease E EBI License 1smx"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
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