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A ball and stick model of a molecule of Human Glucagon, a hormone produced in the pancreas and used by the body to raise levels of glucose in the blood. Glucagon worksin the opposite manner to Insulin, which lowers levels of glucose in the blood - together they work to keep glucose levels stable.
Frataxin (human) mitochondrial protein. Reduced expression causes Friedreich's ataxia. 3D illustration. Cartoon & wireframe representation.
3D rendering of biotinylated antibody, an engineered protein designed to bind to specific molecules. Biotin allows researchers to easily track and manipulate these antibodies.
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.
Segment of human collagen isolated on a white background
Abstract geometric shape
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
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.
A ball-and-stick plus ribbons molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
Interleukin 13 (IL-13) cytokine protein. 3D illustration. Cartoon representation combined with semi-transparent surfaces.
Afamelanotide is a synthetic peptide stimulating hormone used to prevent skin damage from the sun. 3d illustration
Background created by fractal geometry.
Anthrax lethal factor, molecular model. This enzyme is one of three protein components that form the anthrax toxin produced by the bacterium Bacillus anthracis. Lethal factor (LF) disrupts cellular signalling pathways in an infected cell, eventually leading to cell death. Anthrax most commonly affects cattle, sheep and goats, but can also infect humans.
DNA A-T Pair
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Abstract geometric shape
3D cartoon and Gaussian surface models, chain id color scheme, PDB 4ci9, white background
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.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
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PETase (left) degrades  polyethylene terephtalate (PET) into monohydroxyethyl terephthalate (MHET) and MHETase degrades MHET ethylene glycol (EG) and terephthalic acid (TPA). The substrates in the binding sites are depicted in red.
Freshness capsule
3D cartoon and Gaussian surface models, PDB 3hg3, 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.
hormone medicine science chemistry oxytocin love health care chemical oxytocin molecular formular biology concept atom icon object brain organic structure drug element feeling human dopamine serotonin
Human had writing word endorphins and chemical formula. Endorphins are among the brain chemicals known as neurotransmitters, which function to transmit electrical signals within the nervous system
Bovine beta-lactoglobulin protein, 3D structure. Major whey protein, present in cow milk. Important food allergen.
Molecular Model of Cyclosporine, an immunosuppressant drug widely used in organ transplantation to prevent rejection.
Free Images: "bestof:PDB 1pef EBI.jpg Designed proteins Peptide f amphiphilic octadecapeptide Peptide f amphiphilic octadecapeptide Peptide f amphiphilic octadecapeptide Peptide f"
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TOM complex.svg
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IFT particle chlamydomonas.svg
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Phycocyanobilin peptide linked.svg
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Uronium peptide coupling reagents HATU HBTU HCTU COMU.svg
Planar peptide group uk.svg
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Mesomeric peptide bond.svg
Peptide Nucleic Acid.svg
Beefy meaty peptide.svg
Pegdinetanib non-peptide structure.svg
Peptide group cis trans isomerism uk.svg
Urodilatin peptide depiction.svg
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Glycyl-L-histidyl-L-lysine.svg
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Merrifield Synthesis 1 V.1.svg
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Cysteinprotease Reaktionsmechanismus.svg
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Diketopiperazine Structural Formulae V.2.svg
Aceturic acid skeletal.svg
Heatsetting wool.svg
Merrifield Synthesis 4 V.2.svg
Endocrine Alimentary system en.svg
Thyrotropin-releasing hormone.svg
Tiopronin.svg
Sincalide.svg
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Peptid bond formation uk.svg
Amide bond formation of 2,5-DKPs via Dipeptide Cyclization.svg
Acetylleucine.svg
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Polyvalent single-chain variable fragments.svg
Small modular immunopharmaceutical.svg
Blood values sorted by mass and molar concentration.svg
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