Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation). Blocking the CGRP receptor diminishes the quantity of migraine attacks.\
Intestinal microbiome,Probiotics health benefits,Gut bacteria,lactococcus, propionibacterium, bifidobacterium.
3D cartoon and Gaussian surface models, PDB 6vg8, white background
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
A molecular model of Human Insulin. Isolated on black.
The amyloid beta peptide (light blue) is a component of the amyloid precursor protein, which is bound to a cell membrane. The gamma secretase enzyme cuts the free form, that aggregates to amyloid plaques. Source: PDB entries 2beg, 1mwp
Recombinant plasmid formation involves construction of rDNA, in which a foreign DNA fragment is inserted into a plasmid 3d rendering
CD47 also known as integrin associated protein is a transmembrane protein that in humans is encoded by the CD47 gene. CD47 belongs to the immunoglobulin superfamily and partners with membrane integrins and also binds the ligands thrombospondin-1 and signal-regulatory protein alpha. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 2jjt, white background
3D Render of Rainbow Hearts Themed Font Plus Sign and Comma and Period
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Molecular Model of Human Insulin with disulfide bonds shown.
Segment of human collagen isolated on a white background
A ball and stick model of one of the proteins which form the fibres of spider's silk.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Isolated Proteasome with protein conjugated with ubiquitin 3d rendering
3D cartoon and Gaussian surface models, PDB 4cmh, white background
The crystal structure of the tumor marker protein. The 3D model of the biological macromolecule.
Taq polymerase (Thermus aquaticus polymerase) enzyme bound to DNA, 3D rendering. Protein used in PCR (polymerase chain reaction).
Molecular Model of Cetuximab or Erbitux, an epidermal growth factor receptor (EGFR) inhibitor, which is used for the treatment of metastatic colorectal cancer and head and neck cancer.
3D CG rendered image of scientifically accurate Enterobacteria Bacteriophage phiX174 Capsid Structure based on PDB : 1CD3 (capsomere)
A space-filling molecular model of collagen, a fibrous protein that provides structural support in animals. It has a distinctive triple helix structure. Isolated on black.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA with RNA strand in the cell 3d rendering
3D cartoon and Gaussian surface models. PDB 1qxm, white background.
Calcineurin B homologous protein 1, which serves as an essential cofactor which supports the physiological activity of NHE family members. 3d rendering.
Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.
Molecular Model of Human Insulin with disulfide bonds shown.
Free Images: "bestof:PDB 3bzf EBI.png All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains antibody constant domain-like beta2-microglobulin All beta"
Small modular immunopharmaceutical.svg
Heavy chain and common antibody.svg
Gumbel-Density.svg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
PDB 3bzf EBI.png
PDB 1kjv EBI.jpg
PDB 1ed3 EBI.jpg
PDB 1k5n EBI.jpg
PDB 1i4f EBI.jpg
PDB 1x7q EBI.jpg
PDB 1uxs EBI.jpg
PDB 1zhl EBI.jpg
PDB 2hn7 EBI.jpg
PDB 2fyy EBI.jpg
PDB 1m6o EBI.jpg
PDB 2gtz EBI.jpg
PDB 2gt9 EBI.jpg
PDB 2d4f EBI.jpg
PDB 1xr9 EBI.jpg
PDB 1zsd EBI.jpg
PDB 1lds EBI.jpg
PDB 1jf1 EBI.jpg
PDB 2bnq EBI.jpg
PDB 2axf EBI.jpg
PDB 1t1z EBI.jpg
PDB 2h26 EBI.jpg
PDB 1i7u EBI.jpg
PDB 1t1y EBI.jpg
PDB 2guo EBI.jpg
PDB 1vgk EBI.jpg
PDB 2av7 EBI.jpg
PDB 2fz3 EBI.jpg
PDB 1jge EBI.jpg
PDB 2axg EBI.jpg
PDB 1a1n EBI.jpg
PDB 1t1x EBI.jpg
PDB 1t22 EBI.jpg
PDB 2bsu EBI.jpg
PDB 1of2 EBI.jpg
PDB 1ydp EBI.jpg
PDB 1e27 EBI.jpg
PDB 1qew EBI.jpg
PDB 1agf EBI.jpg
PDB 1jht EBI.jpg
PDB 1w0v EBI.jpg
PDB 2clr EBI.jpg
PDB 1xr8 EBI.jpg
PDB 1agb EBI.jpg
PDB 1gzq EBI.jpg
PDB 1qvo EBI.jpg
PDB 1a1m EBI.jpg
PDB 2bsr EBI.jpg
PDB 1i1y EBI.jpg
PDB 3hla EBI.jpg
PDB 1sys EBI.jpg
PDB 2bck EBI.jpg
PDB 1eez EBI.jpg
PDB 1qlf EBI.jpg
PDB 2c7u EBI.jpg
PDB 1qqd EBI.jpg
PDB 2f54 EBI.jpg
PDB 2esv EBI.jpg
PDB 1b0g EBI.jpg
PDB 1mhe EBI.jpg
PDB 1hhi EBI.jpg
PDB 1zvs EBI.jpg
PDB 1i7t EBI.jpg
PDB 1hhj EBI.jpg
PDB 2f74 EBI.jpg
PDB 1a6z EBI.jpg
PDB 1r3h EBI.jpg
PDB 1b0r EBI.jpg
PDB 1efx EBI.jpg
PDB 1cg9 EBI.jpg
PDB 1ktl EBI.jpg
PDB 2d31 EBI.jpg
PDB 1c16 EBI.jpg
PDB 1uqs EBI.jpg
PDB 1ypz EBI.jpg
PDB 1lk2 EBI.jpg
PDB 1g7p EBI.jpg
PDB 1kpv EBI.jpg
PDB 1fzo EBI.jpg
PDB 1leg EBI.jpg
PDB 1t0n EBI.jpg
PDB 1wbx EBI.jpg
PDB 2akr EBI.jpg
PDB 1s7q EBI.jpg
PDB 1s7s EBI.jpg
PDB 1u58 EBI.jpg
PDB 1t0m EBI.jpg
PDB 1wbz EBI.jpg
PDB 1lek EBI.jpg
PDB 1vad EBI.jpg
PDB 1inq EBI.jpg
PDB 1jpf EBI.jpg
PDB 1s7u EBI.jpg
PDB 1kbg EBI.jpg
PDB 1kj3 EBI.jpg
PDB 1s7v EBI.jpg
Terms of Use   Search of the Day