Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
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.
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
A ball and stick + ribbons model of Human Growth Hormone, also known as Somatotropin.
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Molecular model of amylose
Abstract Pink And Green Knot
Abstract technological design of an artificial molecular structure in many colors. Horizontal wide composition.
3D cartoon model, secondary structure color scheme, PDB 2gte, white background
3D Illustration of Vitamin C Molecule
Beta-amyloid (Abeta) peptide, 3D rendering. Major component of plaques found in Alzheimer's disease. Cartoon representation.
Abstract geometric shape
Low-Fiber Diet Risks Gut Health & Allergies
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.
A 3D rendering of a SpyTag-SpyCatcher conjugate, the molecular interaction between these biomolecules. This is used in various biotechnological applications for protein labeling and purification.
Background created by fractal geometry.
3D cartoon and Gaussian surface models, PDB 2zva, white background
Molecular Model of Vitamin E.
Aromatase (estrogen synthase) enzyme. Protein responsible for the key step in the synthesis of estrogens. 3D illustration. Cartoon representation.
Spiral Balls
organic chemistry, model of the protein molecule - illustration of a biological particle
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
Neurotoxin concept Neurotoxin of type A of bacterium Clostridium botulinum which causes food intoxication botulism, molecular model 3d rendering
Background created by fractal geometry.
3D cartoon and Gaussian surface models, PDB 2e5d, white background
Molecular model of Adenosine triphosphate,  or Adenosine-5'-triphosphate (ATP)
Bovine beta-lactoglobulin protein, 3D structure. Major whey protein, present in cow milk. Important food allergen.
Rendered Remdesivir molecule in 3D, an experimental drug from Gilead, used to cure the first case of 2019-nCoV in the United States (for a patient at Seattle, Washington). The model showed accurate atom connection and stereochemistry, based on the chemical structure available in public space from U.S. National Library of Medicine, which was professionally checked. Color symbols - green=carbon, red=oxygen, blue=nitrogen, white=hydrogen, purple=phosphorus
The epidermal growth factor activates the EGF receptor by binding to it. The activated receptor promotes migration, adhesion and proliferation  of cells. Source: PDB entries, 1 EGF
A model of a nucleosome. Isolated on black.
Free Images: "bestof:2B9R.png en Structure of PDB 2B9R human cyclin B rendered with PyMol DeLano Scientific Freeware PDB file deposited by Petri E T Errico A Escobedo L Hunt T and"
Naked human male body front anterior (annotated-en).png
Naked human male body front anterior (annotated-id).png
Naked human male body front anterior.png
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
ProtonFiveQuarkStructure.svg
Protein primary structure zh (zh-tw).svg
Primärstruktur von Proteinen2.svg
Zeppelin-LZ-127 gas cells.svg
Glycogen structure.svg
Trisops machine.svg
Zeppelin-LZ-127 internal.svg
Zeppelin-LZ-127 internal and gas cells.svg
Zeppelin-LZ-127 internal opaque.svg
Departure_for_the_Hunt.jpg
Glosario del APWeb - gineceo y pistilo.svg
2B9R.png
Neuroligin4.png
Ornithine Decarboxylase Publication View.png
TRNA all2.png
Artemin Tertiary Structure.png
1NLRribbon.png
ECadherin repeating unit.png
Crystal Structure of Human Diamine Oxidase.png
3D0E Ribbon.png
1C1G Tropomyosin crystal.png
Apobec.J.Steinfeld.D.png
CD32ray.png
IL22 Crystal Structure.png
Profilin actin complex.png
IL19 Crystal Structure.png
IL6 Crystal Structure.png
IL8 Crystal Structure.png
IL2 Crystal Structure.png
Cystatin C 1r4c.png
2ILA.png
CD86 structure.gif
CTLA4 Crystal Structure.jpg
Interferon Gamma.png
Calcineurin 1AUI.png
NeuropeptideY 1RON.png
Relaxin.png
1st2.png
MSPdimer.png
HCG structure.png
Rhodopsin numbering.png
1UTN.png
Prolactin 1N9D.png
ERF1.png
Preproghrelin 1P7X.png
Sorbitol dehydrogenase pymol image.png
Zp3 structure 3d4g.png
Annexin.png
Parathormon 1BWX.png
PARP1 1UK0.png
3RZE-human histamine H1 receptor-pdb.jpg
IL4 Crystal Structure recombinant.png
IL5 Crystal Structure.rsh.png
IL10 Crystal Structure.rsh.png
IL12 Crystal Structure.rsh.png
IL18 Solution Structure.rsh.png
IL8 Solution Structure.rsh.png
IL13 Solution Structure.rsh.png
BCL2 Crystal Structure.rsh.png
Plasmin2.png
TPH1 1MLW.png
DDAH1.png
IL1a Crystal Structure.png
31BI.png
IL6 Crystal Structure.rsh.png
GMCSF Crystal Structure.rsh.png
OncostatinM Crystal Structure.rsh.png
GCSF Crystal Structure.rsh.png
Sorbitol dehydrogenase pymol image-2.png
1KLT.png
2HNX.png
IL12b Crystal Structure.rsh.png
Aromatase 1TQA.png
Guanylin 1O8R.png
Streptokinase 1BML.png
CYP21 2GEG.jpg
ALDH2 1CW3.png
1pn2.png
1CQ0 crystallography.png
Crystal structure of SopE.png
Human CD40L Crystal Structure.rsh.png
FSHA+B+receptor 1XWD.png
NRas 3CON.png
Pepsin+Pepstatin 1PSO.png
Glutathionperoxidase 2F8A.png
UROD 1URO.png
Glucuronidase 1BHG.png
2FO0 (c-Abl inactive).png
PEPCK 1KHF.png
1L9H (Bovine Rhodopsin) 2.png
PSA 2ZCK.png
CD4+MHCII 1JL4.png
ALB structure.png
Ceruloplasmin 1KCW.png
HLA-A2.png
Thioredoxin 1AIU.png
Terms of Use   Search of the Day