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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

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.

Food supplement capsules with oil - vitamin A

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

3D cartoon and Gaussian surface models, PDB 5fwk, white background

DNA mutation, a mutation is a change in a DNA sequence, mutations can result from DNA copying mistakes made during cell division.

29 October Republic Day of Türkiye text on a red shiny sphere with a partial Turkish flag on white background. Easy to crop for all your print sizes and social media needs.

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.

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.

Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration

3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, white background

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Carbamide in Chemical Watch Glass with molecular structure. Chemical ingredient used in medical and public health issues.

A molecular model of the flavonoid Quercetin. An antioxidant and anti-inflamatory, it is used as a nutritional suplement. It is commonly found in many fruits and vegetables and is a significant chemical component of tea. Isolated on white.

The cytokin interleukin 11 (IL-11) plays an important role in autoimmune diseases, fibrotic complications, and solid cancers. Blocking IL-11 can extend lifespan and improve health.

Ball and stick 3D render of the caffeine molecular structure.

3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.

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.

Molecular model of amylose, one of the two sugar components in starch

Free Images: "bestof:PDB 1gln EBI.jpg All alpha proteins An anticodon-binding domain of class I aminoacyl-tRNA synthetases An anticodon-binding domain of class I aminoacyl-tRNA"

Coast guard helicopters divers jumping.jpg

Pronghorn antelope female antilocapra americana.jpg

Eland and topi Tanzania mammals animals.jpg

Oribi African mammal animal ourebia ourebi.jpg

Pronghorn antelope male antilocapra americana.jpg

Pronghorn antelope male in breeding plumage.jpg

Pronghorn antelope resting among trees.jpg

South African gemsbok oryx gazella African mammal.jpg

Herd of pronghorn antelope animals antilocapra americana.jpg

Pronghorn antelope runs gingerly across a meadow.jpg

Pronghorn does animals mammals antilocapra americana sonoriensis.jpg

Scenic view of several pronghorn grazing in forefront with hills.jpg

Antelope in a field at Sevilleta national wildlife refuge in New Mexico.jpg

South African oryx or gemsbok African mammal.jpg

Penisular pronghorn endengered mammal specie antilocapra americana peninsularis.jpg

London Bus 236 at its terminus at Finsbury Park Station.jpg

Miami Beach port with coast guard ships.jpg

Biological classification L Pengo tweaked.svg

21 electrodes of International 10-20 system for EEG.svg

I-201 class general arrangement sections.svg

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