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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.

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

San Marcos, USA - July 5, 2011: QuickBooks box on graphs and pen. Quickbooks is an accounting software program created by INTUIT corporation. It is the most popular accounting software program for small business with over 90% market share.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

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.

multilingual contains packing list label written in Italian English French and German

An ECG test chart with pills and a stethoscope

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.

Different vegetables, seeds and fruits on black table, flat lay. Sources of essential amino acids

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.

structure of a citric acid molecule painted on lemon peel, abstract background

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3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background

A heart trace ECG with a generic box of Bisoprolol beta blocker pills and a stethoscope

Prostaglandin D2 or PGD2 is a prostaglandin that binds to the receptor PTGDR as well as CRTH2. 3d illustration

Disposable alcohol wipe for degreasing surfaces of parts to be glued in paper packaging isolated on white

Zinc supplements on their periodic table square.

Desiccant or silica gel in paper packaging, in supplement tablet medicine

Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.

ERP - Enterprise Resource Planning digital 3d concept

Organic carnauba wax flake with molecular structure. Chemical ingredient used in cosmetic industry.

A ball and stick model of Eicosapentaenoic Acid or EPA. It is an omega-3 polyunsaturated fatty acid. It is introduced into the diet by eating oily fish. Isolated on white.

Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration

West Palm Beach, USA - October 13, 2015: A US government publication that explains Medicare benefits, titled Medicare and You, lies on a desk. The booklet is open to a page describing Medicare Advantage Plans. Prescription bottles containing various prescription drugs for high blood pressure and cholesterol are grouped on the publication. Various medicines in tablet and capsule form are also on top of the booklet.

Vitamin A. Retinol 3d molecule on paper texture background. Skeletal formula of vitamin a. Recessed text in green and yellow.

Doctors office with a prescription and folic acid vitamin B9 pills

Free Images: "bestof:Streptavidin.png en Monomeric Streptavidin displayed as ribbon diagram with bound biotin displayed as spheres Picture derived from 1STP Ref Weber P C Ohlendorf"

1868_Lawrence_Alma-Tadema_-_Phidias_Showing_the_Frieze_of_the_Parthenon_to_his_Friends.jpg

Unidentified_Indian_basket_under_construction_on_display,_ca.1900_(CHS-3971).jpg

Unidentified_Indian_basket_on_display,_ca.1900_(CHS-3974).jpg

Kepler186f-ComparisonGraphic-20140417 improved.jpg

1838_Monin_Map_or_Physical_Tableau_and_Astronomy_Chart_(Zodiac)_-_Geographicus_-_Tableau-monin-1838.jpg

Haslem's Creek Cemetery Station c1865.jpg

Fridtjof_Nansen,_Les_deux_étapes_de_la_faim_(1922).jpg

Bijacin-streptavidzin dauzhynia zluczenniau.png

Wofford Flags Displayed in Downtown Spartanburg.jpg

Bluestockings displayed- Portraiture, performance and patronage, 1730-1830.jpg

Sexual_Assaiult_Awareness_Month_banner_at_Joint_Base_Pearl_Harbor-Hickam_120427-N-UK333-002.jpg

Thiazol derivatves bound to TK BcrAbl.PNG

2009 Presidential Inauguration JumboTron Crowd Shot.JPG

1893_Chicago_World's_Fair_Russian_Furs_Exhibit,_Paul_M._Grunwaldt.jpg

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Map_showing_Scotland_and_Lake_Nyasa,_(s.d.)_(imp-cswc-GB-237-CSWC47-LS5-1-014).jpg