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GABA B receptors  are G protein-coupled receptors, also called metabotropic receptors.  Binding of  an agonist (baclofen, red) leads to a G-protein coupled C-AMP signaling pathway. Source: PDB entries 7eb2, 6r3q,.
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 Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Mammogram
Dna structure on science background. 3d illustration
Chain of Amino Acid. Proteins consist of one or more chains of amino acids called polypeptides
Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.
Chain of amino acid or bio molecules called protein - 3d illustration
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Cells in the body examined by endoscope
Cell membrane cholesterol is shown in pink. 3D cartoon and Gaussian surface models, PDB 7rpk, white background.
Hepatocellular adenoma (HCA; also termed hepatic adenoma) is an uncommon solid, benign liver lesion that develops in an otherwise normal-appearing liver. Typically, HCAs are solitary and are found in young women in association with use of estrogen-containing medications.
Acetylcholine receptors in the lipid layer of cell membrane.
Liver Fluke Section under light microscope with white background
Human hair with dandruff and close-up view of microscopic fungi Malassezia furfur that cause dandruff and seborrhoeic dermatitis, 3D 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.
Main mutation site of the coronavirus variant B.1.531 emerged in South Africa. The spike protein (red) is bound to the angiotensin converting enzyme 2 (blue). The mutation is at the amino acid position 484 (yellow). Source: PDB entry 6cs2.
3D Rendered Illustration, visualization of Neurons firing neurotransmitters in the synaptic gap.
3D cartoon and Gaussian surface models, PDB 3v6b, white background
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Nucleosome, molecular model. 3D illustration. The nucleosome consists of a DNA double helix wrapped around a core of histone proteins.
A ball-and-stick plus ribbons molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
copper hydroxide, pools abstract structure
Molecular Model of Vitamin E.
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.
ATP Synthase Protein - 3d rendered image. Medical microbiology concept.  Structure and conformational states of the bovine mitochondrial ATP (Adenosine triphosphate) synthase. Chemical energy is synthesized in eukaryotic cells primarily. Hydrolase. Hologram view. HUD, FUI
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Alveolar soft part sarcoma, or ASPS, is a cancer that can come from different types of soft tissue, such as muscle, fat, or nerves.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
plant Leaf of Nerium indicum T.S. under light mircoscope with white background
Free Images: "bestof:PDGFR-beta 3MJG.png en Ribbon image of human PDGF receptor beta in complex with PDGF-B This image was created using Pymol based on 3MJG in the Protein Data Bank"
Global tropical cyclone tracks-edit2.jpg
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Female with computer laptop.jpg
Hubble_Observes_Infant_Stars_in_Nearby_Galaxy_DVIDS727273.jpg
Tartan_Ribbon.jpg
Gristmill_Hopper_1938.gif
Enée & Anchise Lepautre Louvre M.R.2028 noir.jpg
Pygmy Goat At Las Vegas Zoo.JPG
Seleucus crater AS15-M-2621.jpg
Villarceau circles.gif
Lawrence_Brown_1943.jpg
Mug and Torus morph.gif
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Knight's tour anim 2.gif
Antarctica 6400px from Blue Marble.jpg
An-E2C-Hawkeye-from-the-Tigertails.jpg
Ray_Nance_1943.jpg
SLNSW 13194 Women volunteer workers doing up clothing parcels at the ACF rooms taken for Australian Comforts Fund.jpg
X-36_Being_Prepared_on_Lakebed_for_First_Flight_DVIDS708016.jpg
Petroglyph an image created by removing portions of the rock surface.jpg
Random-image.jpg
Ribbon seal phoca fasciata.jpg
Huslia Koyukuk river bank.jpg
Lake DeFuniak Sunset.JPG
Wheat and wheat based foods.jpg
Oldavai gorge.jpg
Crayfish in hand.jpg
Melania Trump 2016 RNC.jpg
Remington M1867.jpg
Bear claw marks on river bank.jpg
White horse.jpg
Child foot.jpg
A young girl handles a turtle.jpg
Lake bank erosion.jpg
Chopped vegetables.jpg
Meat onions presentation.jpg
Stuffed artichoke.jpg
Caribou using antlers (1).jpg
Diced vegetables.jpg
Quark liptauer cheese.jpg
Bank of little white flowers.jpg
Windy day on the river bank.jpg
Human footprints in snow.jpg
Baby sea turtles in hands.jpg
F 16s jets fighters airplanes.jpg
Human foot print in sand.jpg
A bull moose stands under birch tree.jpg
Personnel using controlled fire.jpg
Glyptemys muhlenbergii bog turtle in hands.jpg
Asparagus meat presentation food.jpg
Food dim sum squid.jpg
Created pools after rains which submerged vegetation.jpg
Cactus macro dark background.jpg
Anglers using backpack electroshocker to capture fish.jpg
Anglers using electro shock fishing techniques.jpg
Jets fighters planes.jpg
Scenic view of river bank in summer.jpg
Tree grove and eroding bank along river.jpg
Golden Christmas bauble with white ribbon.jpg
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Eye open close up.jpg
Eye opened close up.jpg
Corn and corn products.jpg
Corn chips close up.jpg
Fish plate presentation.jpg
Meat filet presentation.jpg
Szechwan beef broccoli food dinner.jpg
Artichoke hearts with scallop stuff.jpg
Food chili cheese bowls.jpg
Fried smelt food dinner cooked.jpg
Meat filet food.jpg
Preparing frying american shad fish.jpg
Shrimp with polenta and spinich.jpg
Fish rescue during cave creek complex.jpg
9 - euro bank notes hidden in sleeve - white background - royalty free, without copyright, public domain photo image.JPG
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RenCen.JPG
Englishtitles2-1.jpg
Person practice using a sight level for mapping ground.jpg
Teacher using suitcase for survival teaching kit.jpg
Brown bear entering creek from deep grass covered bank.jpg
Brown bear standing on rivers bank ursus middendorffi.jpg
Man standing on creek bank vintage photo.jpg
Child wading in water while using net.jpg
Thick shelled river mussels in hand unio crassus.jpg
Service employee using a leaf blower to clear a path.jpg
Using a spotting scope researchers stufy the behavior of wild birds.jpg
Ambystoma californiense california tiger salamander in hands.jpg
Little snapping turtle in hands chelydra serpentina.jpg
Two young women embracing new technology enjoy using computer.jpg
Birdwatchers on a deck observe birds using binoculars and cameras.jpg
Video production workers in studio studying bank of monitors showing camera views.jpg
Visitors using a spotting scope from a blind to view their favorite birds.jpg
Dense green branches on the bank above the water.jpg
Bluegill fish caught on a hook using an earthworm lepomis macrochirus.jpg
Catching fish using electrofishing practice.jpg
Fishermans in water fishing using electric power.jpg
Winter fishing using fishing boat.jpg
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