Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
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.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
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 human Interleukin 2 or IL-2. Interleukin is a hormone which acts as a signalling molecule for the immune system.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Collagen protein molecule. Molecular model. 3D rendering. Illustration
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Top view of various kinds of vegan protein sources like tofu, tempeh, soy beans, soy milk, mushrooms, wakame, lentils, peanuts, spinach and chick peas. All the objects are on a gray bluish backdrop. Studio shot taken with Canon EOS 6D Mark II and Canon EF 24-105 mm f/4L
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Dna structure digital concept
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.
Food containing natural iron. Fe: Liver, avocado, broccoli, spinach, parsley, beans, nuts, on a white background. Top view.
Fresh vegetables, fruits and seeds on black table, flat lay. Sources of essential amino acids
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Inside protein molecule
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Abs Virus - 3d rendered image like colorized scanning electron micrograph. Scene showing virus (yellow)  emerging from infected cell.\nConcept of coronavirus that’s causing a global pandemic. Covid-19, Sars-cov-2 alpha, betta, gamma, delta, lambda variant, 2019-nCoV, Coronavirus.\nSEM, TEM, hologram view.
Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration
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.
A quadrant streak of the bacterium Staphylococcus aureus cultured or inoculated on Baird-Parker agar with egg tellurite .
Hemp Floral Wax in a petri dish
3d render Set of 3d render Probiotic Bacteria Bulgaricus, Lactobacillus, Propionbacterium. Lactococcus, Streptococcus Thermofillus, Bifidobacterium. Volume illustration.
In vitro bacterial culture
Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.
Abstract Lactobacillus Bulgaricus Bacteria - 3d rendered microbiology image. Medical research, health-care concept. SEM (TEM)scanning view. Hologram digital display, HUD, FUI.
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.
Candida albicans grown on chromogenic agar plates. Candida albicans, a fungus naturally present in small quantities on the body, inhabits areas such as the mouth, skin, and intestines. When the balance with healthy bacteria is disrupted, Candida can lead to infections like thrush and vaginal yeast infections. These infections are frequent and typically addressed with antifungal medications.
Free Images: "bestof:PDB 2ewj EBI.jpg Multi-domain proteins alpha and beta Replication terminator protein Tus Replication terminator protein Tus Replication terminator protein Tus"
egg-egg-carton-protein-proteins-319544.jpg
fried-eggs-eat-egg-food-snack-547389.jpg
ham-sausage-turkey-ham-turkey-meat-74197.jpg
scrambled-eggs-breakfast-plate-939251.jpg
scrambled-eggs-egg-eat-breakfast-1042653.jpg
veal-shank-meat-veal-steakes-haxe-74307.jpg
meat-pork-pork-belly-tuna-belly-74214.jpg
marrowbone-beef-meat-bone-raw-eat-897982.jpg
beef-meat-bone-raw-eat-food-red-897977.jpg
deep-fat-frying-sear-fry-oil-74242.jpg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Proteinoxidation 03.svg
Epicocconone protein.svg
Protein 7 domen.svg
Main protein structure levels pl - secondary structure.svg
Main protein structure levels pl.svg
Protein primary structure zh (zh-tw).svg
PKARII.svg
Proteinoxidation.svg
Glicoprotein.svg
Laminin sketch.svg
Proteinoxidation 02.svg
Primärstruktur von Proteinen2.svg
Alpha sheet bonding schematic-color.svg
Beta sheet bonding antiparallel-color.svg
Beta sheet bonding parallel-color.svg
AminoAcid length distribution 2010.svg
IFT particle chlamydomonas.svg
Pseaa figure1.svg
Beta-Faltblatt.svg
Steatosis.svg
8-oxoG forming Hoogsten base pair with dA.svg
TOM complex.svg
ProteinQS.svg
Lipid raft organisation scheme.svg
Genetic code mk.svg
Complement pathway.svg
Intermediate filament.svg
Stat domain structure (zh-cn).svg
Genetic code.svg
Ribosome mRNA translation tr.svg
Molbio-Header-2.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Cell membrane detailed diagram blank.svg
Hepatitis B virus v2.svg
Molbio-Header.svg
PDB 2ewj EBI.jpg
PDB 2i05 EBI.png
PDB 1ecr EBI.jpg
PDB 2i06 EBI.png
PDB 1bm9 EBI.jpg
PDB 1j0r EBI.jpg
PDB 2dpd EBI.jpg
PDB 2efw EBI.png
PDB 1f4k EBI.jpg
PDB 2dpu EBI.jpg
PDB 1l5i EBI.jpg
PDB 1l2m EBI.jpg
PDB 1f08 EBI.jpg
PDB 1ksy EBI.jpg
PDB 1ksx EBI.jpg
PDB 1r9w EBI.jpg
PDB 1m55 EBI.jpg
PDB 1uut EBI.jpg
PDB 1rz9 EBI.jpg
PDB 2e9x EBI.png
PDB 2q9q EBI.png
PDB 2eho EBI.png
Tus-Ter complex 1ecr.png
PDB 2c5r EBI.jpg
PDB 2bnk EBI.jpg
PDB 1zae EBI.jpg
PDB 1rep EBI.jpg
PDB 1hkq EBI.jpg
PDB 2z9o EBI.png
PDB 2nra EBI.png
PDB 2b3g EBI.jpg
PDB 2b29 EBI.jpg
PDB 1fgu EBI.jpg
PDB 1jmc EBI.jpg
PDB 1l1o EBI.jpg
PDB 1ewi EBI.jpg
PDB 1quq EBI.jpg
PDB 1v1q EBI.jpg
PDB 1txy EBI.jpg
PDB 2ccz EBI.jpg
PDB 2pi2 EBI.png
PDB 2pqa EBI.png
PDB 2z6k EBI.png
PDB 1vdd EBI.jpg
PDB 1ad2 EBI.jpg
PDB 1i2a EBI.jpg
PDB 1cjs EBI.jpg
PDB 1u63 EBI.jpg
PDB 1dwu EBI.jpg
PDB 1mzp EBI.jpg
PDB 1su8 EBI.jpg
PDB 1su7 EBI.jpg
PDB 1suf EBI.jpg
Terms of Use   Search of the Day