Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
3D cartoon model, secondary structure color scheme, PDB 2ygt, white background
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
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.
Rapamycin, also known as sirolimus is a macrolide compound that has immunosuppressant functions and prevents transplant rejection through the inhibition of  the protein complex mTORC1.
DNA A-T Pair
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
Recombinant human insulin. 3d cartoon model based on protein data bank
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
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. Hologram view. SEM.
Resistin also known as adipose tissue-specific secretory factor (ADSF) or C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein (XCP1) is a cysteine-rich peptide hormone derived from adipose tissue that in humans is encoded by the RETN gene. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 1rfx, white background
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.
3D model of a protein molecule. The spatial oriented structure of the macromolecule.
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.
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy
Isolated The Gram-negative cell wall is composed of an outer membrane, a peptidoglycan layer, and a periplasm 3d rendering
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
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. PDB 2aai, white background.
Molecular Model of Infliximab, or Remicade, a monoclonal antibody against tumour necrosis factor alpha (TNF-α), which is used to treat autoimmune diseases
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
GABA B receptors  are G protein-coupled receptors, also called metabotropic receptors.  Binding of  an agonist (here baclofen, red) leads to a G-protein coupled C-AMP signaling pathway. Source: PDB entries 7eb2, 6r3q,.
Freshness capsule
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
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.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background
A ball and stick + ribbons model of Bowman-Birk Protease Inhibitor, more commonly abbreviated to BBI. It is used clinically to treat and help prevent cancer.
Brain-derived neurotrophic factor (3d), also known as BDNF, a protein that supports the survival of existing neurons, and encourages the growth and differentiation of new neurons and synapses.
Molecular Model of Human Insulin with disulfide bonds shown.
Free Images: "bestof:PDB 2j8f EBI.png All beta proteins beta-hairpin stack Cell wall binding repeat Cell wall binding repeat C-terminal domain of endolysin Alpha and beta proteins a"
saying-font-red-wall-prison-472218.jpg
tiles-baroque-pattern-texture-554601.jpg
jail-cells-jail-penitentiary-police-429638.jpg
wall-texture-backdrop-surface-554599.jpg
jail-prison-police-crime-law-429633.jpg
penitentiary-jail-police-crime-law-429634.jpg
jail-prisoner-captive-police-crime-429639.jpg
payphone-urban-phone-public-street-1616405.jpg
bee_19992,_f,_face,_kenya_2014-08-07-14.58.57_ZS_PMax.jpg
bee_19992,_f,_angle,_kenya_2014-08-07-14.44.23_ZS_PMax.jpg
WHAT_YOUR_KIDS_ARE_BEING_TAUGHT.jpg
Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Complement pathway.svg
Cell membrane detailed diagram blank.svg
Cell membrane detailed diagram en.svg
UnitCell.svg
Stat domain structure (zh-cn).svg
Prokaryote cell diagram international.svg
Adherens Junctions structural proteins gl.svg
Insulin glucose metabolism ZP (it).svg
Cellular tight junction-gl.svg
Engineered monoclonal antibodies.svg
Plant cell structure svg labels.svg
Notable mutations.svg
Beta fluorine unit cell.svg
Plant cell wall diagram-en.svg
Plant cell wall diagram mk.svg
Plant cell wall nl.svg
Plant cell wall diagram gl.svg
Plant cell wall diagram-uk.svg
bacterium-nucleoid-cytoplasm-cell-307660.svg
Adherens Junctions structural proteins-LangNeutral.svg
Adherens Junctions structural proteins.svg
Adherens Junctions structural proteins-ja.svg
Bacteria.svg
Adherens Junctions structural proteins-fr.svg
Schema pflanzliche Zellwand.svg
Adherens Junctions structural proteins it.svg
background-brick-bricks-graffiti-1298101.svg
Intermediate filament-HE.svg
seamless-texture-wallpapers-1356920.jpg
seamless-tile-background-abstract-1315261.jpg
seamless-tile-background-abstract-1315263.jpg
seamless-tile-background-abstract-1315262.jpg
Beta oksydacja.svg
Turgor pressure on plant cells diagram.svg
Plasmolyse Pflanzenzelle.svg
Turgor pressure on plant cells diagram pl.svg
Turgor pressure on plant cells diagram-es.svg
Turgor pressure on plant cells diagram-it.svg
Sciana komorkowa roslin diagram pl.svg
CD8 receptor.svg
hexagon-hex-grid-abstract-design-866195.jpg
Endocytosis types.svg
Intermediate filament.svg
Endocytosis types-fr.svg
Turgor pressure on plant cells diagram (zh-tw).svg
Exocytosis types.svg
Turgor pressure on plant cells diagram (zh-cn).svg
Quadroma antibodies.svg
Proteinoxidation 03.svg
Insulin glucose metabolism ZP-he.svg
Stem cell division and differentiation.svg
Fremantle Prison map.svg
square-frame-geometry-design-869112.jpg
square-frame-geometry-design-869111.jpg
blocks-bricks-design-construction-724199.jpg
Adherens Junctions structural proteins-es.svg
Adherens Junctions structural proteins-uk.svg
Lipid raft organisation scheme.svg
Gumbel-Density.svg
Insulin glucose metabolism ZP (ru).svg
Endocytoza typy.svg
Pore schematic.svg
Beta oxidation (zh-cn).svg
Samuel_Palmer_-_Conway_Castle_-_Google_Art_Project.jpg
Human genome by functions.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Shifted chessboard.svg
Psychoacoustical tuning curves.svg
Triple-Spiral-labyrinth.svg
Triple-Spiral-labyrinth-variant.svg
P450cycle.svg
PDB 2j8f EBI.png
PDB 2j8g EBI.png
PDB 2ixv EBI.png
PDB 2ixu EBI.png
PDB 1h09 EBI.jpg
PDB 1oba EBI.jpg
PDB 2bib EBI.jpg
PDB 2bml EBI.jpg
PDB 1gvm EBI.jpg
PDB 1h8g EBI.jpg
PDB 1hcx EBI.jpg
PDB 3cir EBI.png
PDB 1w5b EBI.jpg
PDB 1w5a EBI.jpg
PDB 1w58 EBI.jpg
Terms of Use   Search of the Day