Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
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.
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.
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
A combined image of various micro organisms in colorhttp://195.154.178.81/DATA/istock_collage/0/shoots/785093.jpg
Chromosome structure with telomeres at the ends.
Recombinant human insulin. 3d cartoon model based on protein data bank
3d render Probiotic bacteria types set in circle shape. Good microbiota with healthy prebiotic bacillus. Lactobacillus, streptococcus, bifidobacteria and other microorganisms. Volume simple elements.
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 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.
3D cartoon and Gaussian surface models, PDB 6vg8, white background
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Ovarian Cancer Cell
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.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Calreticulin, a protein which binds to misfolded proteins and prevents them from being exported from the endoplasmic reticulum to the Golgi apparatus. 3d rendering.
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.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Freshness capsule
3D cartoon and Gaussian surface models, PDB 2zva, white background
Inside microorganism cloud
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Image of drug delivery using micelles made with nanotechnology technology to deliver drugs directly to the affected area
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. 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 model of a protein molecule. Endothelial tyrosine kinase receptor, a marker of angiogenesis.
dna
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
This computer-generated image vividly illustrates the invasive Group A Streptococcal bacteria, as they would appear under a microscope. This visual representation helps to understand the microscopic world of Group A Streptococcus and its potential to cause serious diseases.
Free Images: "bestof:PDB 1i2g EBI.jpg Alpha and beta proteins a+b Microbial ribonucleases Microbial ribonucleases Fungal ribonucleases RNase T1 EBI License 1i2g November 16 2008"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Equilateral pentagon.SVG
Portret van Jan van Huysum Rijksmuseum SK-A-5008.jpeg.jpg
Japan Electricity Production 1980-2014.svg
PDB 1i2g EBI.jpg
PDB 1i0v EBI.jpg
PDB 9rnt EBI.jpg
PDB 1lov EBI.jpg
PDB 1loy EBI.jpg
PDB 4gsp EBI.jpg
PDB 1rga EBI.jpg
PDB 8rnt EBI.jpg
PDB 1i0x EBI.jpg
PDB 2rnt EBI.jpg
PDB 2gsp EBI.jpg
PDB 1hyf EBI.jpg
PDB 1rgk EBI.jpg
PDB 4bir EBI.jpg
PDB 1i3i EBI.jpg
PDB 3rnt EBI.jpg
PDB 2aae EBI.jpg
PDB 5gsp EBI.jpg
PDB 1rn4 EBI.jpg
PDB 1fzu EBI.jpg
PDB 1q9e EBI.jpg
PDB 6rnt EBI.jpg
PDB 5bu4 EBI.jpg
PDB 3gsp EBI.jpg
PDB 1i2e EBI.jpg
PDB 2hoh EBI.jpg
PDB 1rhl EBI.jpg
PDB 1g02 EBI.jpg
PDB 4bu4 EBI.jpg
PDB 1bvi EBI.jpg
PDB 3bu4 EBI.jpg
PDB 3hoh EBI.jpg
PDB 1bir EBI.jpg
PDB 1rls EBI.jpg
PDB 2aad EBI.jpg
PDB 1i2f EBI.jpg
PDB 5hoh EBI.jpg
PDB 1bu4 EBI.jpg
PDB 1rgl EBI.jpg
PDB 1rgc EBI.jpg
PDB 1lra EBI.jpg
PDB 5bir EBI.jpg
PDB 1fys EBI.jpg
PDB 7gsp EBI.jpg
PDB 7rnt EBI.jpg
PDB 1det EBI.jpg
PDB 1rnt EBI.jpg
PDB 2bu4 EBI.jpg
PDB 1low EBI.jpg
PDB 1b2m EBI.jpg
PDB 4hoh EBI.jpg
PDB 1gsp EBI.jpg
PDB 1rn1 EBI.jpg
PDB 6gsp EBI.jpg
PDB 4rnt EBI.jpg
PDB 1trq EBI.jpg
PDB 1ch0 EBI.jpg
PDB 1i3f EBI.jpg
PDB 3bir EBI.jpg
PDB 2bir EBI.jpg
PDB 1trp EBI.jpg
PDB 5rnt EBI.jpg
PDB 1iyy EBI.jpg
PDB 1ygw EBI.jpg
PDB 1hz1 EBI.jpg
PDB 1fut EBI.jpg
PDB 1rtu EBI.jpg
PDB 1rms EBI.jpg
PDB 1rds EBI.jpg
PDB 1fus EBI.jpg
PDB 1rcl EBI.jpg
PDB 1rck EBI.jpg
PDB 1lni EBI.jpg
PDB 1t2h EBI.jpg
PDB 1t2i EBI.jpg
PDB 1rge EBI.jpg
PDB 1rgg EBI.jpg
PDB 1i8v EBI.jpg
PDB 1rgh EBI.jpg
PDB 1rgf EBI.jpg
PDB 1i70 EBI.jpg
PDB 1gmp EBI.jpg
PDB 1box EBI.jpg
PDB 1gmq EBI.jpg
PDB 1gmr EBI.jpg
PDB 1uci EBI.jpg
PDB 1rsn EBI.jpg
PDB 1uck EBI.jpg
PDB 2sar EBI.jpg
PDB 1ucl EBI.jpg
PDB 1sar EBI.jpg
PDB 1ucj EBI.jpg
PDB 1c54 EBI.jpg
PDB 1mgr EBI.jpg
PDB 1mgw EBI.jpg
PDB 1ay7 EBI.jpg
Terms of Use   Search of the Day