Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Ferritin is a protein that contains iron and is the primary form of iron stored inside of cells. 3D cartoon model, PDB 4y08, white background
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.
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 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.
CRISPR-Cas9 gene editing technology
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology.
A carboxypeptidase is a protease enzyme that hydrolyzes a peptide bond at the carboxy-terminal end of a protein or peptide. 3D cartoon model, secondary structure color scheme, PDB 2v77, white background.
dna helix
PETase is a bacterial enzyme that breaks down PET-plastic to monomeric molecules. The whole bacterial degradation process yields terephtalic acid and ethylene glycol, which are environmentally harmless.
Computer generated 3D abstract forms.
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.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Recombinant human insulin. 3d cartoon model based on protein data bank
DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology. Hologram view. HUD, FUI, SEM
3D cartoon and Gaussian surface models, chain entity color scheme, PDB 4oo8, white background
DNA colourful background abstract
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
DNA A-T Pair
Aztreonam (left, orange) inhibits the beta-lactamase from Acinetobacter species. Avibactam (red) inhibits the beta-lactamase (blue) of Clostridioides difficile.
A model of an Enhanceosome protein complex binding to a strand of DNA. This enhanceosome reacts to infection by viruses by accelerating the production of human interferon and triggering the defenses of the immune system.
3d render Probiotic bacteria types set in circle shape. Good microbiota with healthy prebiotic bacillus. Lactobacillus, streptococcus, bifidobacteria and other microorganisms. Volume simple elements.
Image of drug delivery using micelles made with nanotechnology technology to deliver drugs directly to the affected area
3D cartoon and Gaussian surface models, PDB 6vg8, white background
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 model of a protein molecule. The spatial oriented structure of the macromolecule.
dna helix
PKM2 plays key roles in reprogramming cancer cells from energy production to growth (Warburg Effect). The dimeric form of the enzyme is not only less active in glycolysis but can also move into the nucleus to promote the transcription of other cancer-causing genes. A substrate analogon (red) is bound to the active site. PKM2 is a target for anti-cancer therapies. PDB entry: 6WP3.
DNA and biotechnology concept
Free Images: "bestof:PDB 1jbg EBI.jpg All alpha proteins Putative DNA-binding domain Putative DNA-binding domain DNA-binding N-terminal domain of transcription activators Multidrug"
Boat_bows_(3).jpg
The_orange_fish_net_float..jpg
Airline_Terminal_Windows.jpg
The shallow water attention terminal swat boat.jpg
Denver international airport.jpg
Zebra_Dove.jpg
Great_Indian_Hornbill..jpg
Bursting_Into_Life.jpg
150610-Z-NI803-196.jpg
150610-Z-NI803-032.jpg
150610-Z-NI803-485.jpg
150610-Z-NI803-490.jpg
150610-Z-NI803-007.jpg
150610-Z-NI803-359.jpg
150610-Z-NI803-619.jpg
Redrosedust wright f2000.jpg
141218-Z-NI803-060.jpg
141218-Z-NI803-093.jpg
140701-Z-NI803-014.jpg
Stat domain structure (zh-cn).svg
RHAU domain architecture 02.svg
Greek lc alpha.svg
Alpha lowercase.svg
AminoAcidball.svg
Alpha-D-Galactopyranose.svg
Shop,_Kurseong,_India_c.1900.jpg
AlphaHelixSection (blue).svg
Alpha-Tropanol.svg
AminoAcidball rus.svg
Alpha Dive Flag.svg
2-hydroxy-2-methylbutyric acid.svg
Alpha-D-Mannofuranose.svg
Alpha-D-Mannopyranose.svg
Alpha-D-Altrofuranose.svg
Alpha-D-Altropyranose.svg
Alpha-D-Gulofuranose.svg
Alpha-D-Gulopyranose.svg
Alpha-D-Idofuranose.svg
Alpha-D-Idopyranose.svg
Alpha-D-Galactofuranose.svg
Alpha-D-Talofuranose.svg
Alpha-D-Talopyranose.svg
Alpha-D-Psicofuranose.svg
Alpha-D-Psicopyranose.svg
Alpha-D-Sorbofuranose.svg
Alpha-D-Sorbopyranose.svg
Alpha-D-Tagatofuranose.svg
Alpha-D-Tagatopyranose.svg
Alpha-D-Arabinofuranose.svg
Alpha-D-Arabinopyranose.svg
Alpha-D-Lyxofuranose.svg
Alpha-D-Lyxopyranose.svg
Alpha-D-Ribofuranose.svg
Alpha-D-Ribopyranose.svg
Alpha-D-Ribulofuranose.svg
Alpha-D-Xylulofuranose.svg
Alpha-D-Erythrofuranose.svg
Alpha-D-Threofuranose.svg
LogTay.svg
Example image.svg
Adherens Junctions structural proteins gl.svg
USACPI1800.svg
Logarithmic spiral.svg
Insulin glucose metabolism ZP (it).svg
Cellular tight junction-gl.svg
Mediterranean_Sea_political_map-mk.svg
Mediterranean_Sea_political_map-it.svg
Stem cell division and differentiation.svg
Cpi-2010.svg
BSicon KBHFa purple.svg
BSicon KBHFe jade.svg
BSicon KBHFe purple.svg
BSicon KBHFe denim.svg
Schottky barrier forward bias.svg
Schottky barrier zero bias.svg
Schottky barrier reverse bias.svg
Straddling gap heterojunction band diagram.svg
Band filling diagram.svg
Semiconductor vacuum junction.svg
Photoelectric diode forward bias.svg
Chunnel traffic.svg
ALAnumbering.svg
Schottky barrier minority carrier injection.svg
Metal semiconductor junction Schottky approximation.svg
Metal semiconductor junction Bardeen picture.svg
Thermionic diode reverse bias.svg
Thermionic diode forward bias.svg
Dallas County Texas Incorporated Areas.svg
Jakstat pathway PIAS.svg
Kelvin probe setup at flat vacuum.svg
Work function mismatch gold aluminum.svg
Mediterranean_Sea_political_map-en.svg
PlotDiscriminantsOfQuarticFields.svg
Pendant drop test.svg
Mediterranean_Sea_political_map-fr.svg
Pan Am Worldport.jpg
Chunnel traffic-fr.svg
World Organization of the Scout Movement-Eurasian Region purple.svg
Union Membership and Support.svg
Richard_Wagner_by_Caesar_Willich_ca_1862.jpg
Terms of Use   Search of the Day