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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.
Cells in the body examined by endoscope
3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background
A conceptual image of an abstract network of multi-coloured organic strands arranged in a non regular pattern all connected together in a complex manner. The network is made from smaller multi-coloured squares and polyhedra, in vivid colours against a pastel toned background. Shows background and foreground elements to the structure.
Photomicrograph of Histological analysis of Intramedullary SOL showing Astrocytoma, WHO grade-4
Microscopic photograph of a professionally prepared slide demonstrating vulvar malignant melanoma. Melanomas of the vulva and vagina are rare, accounting for no more that 2% of melanomas among women. Melanoma of the vulva behaves like melanoma in any other location and may affect a much younger population.
forming of underskin cellulite illustration
Computational tomography image of the abdominal and pelvic regions.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).
plant Zea Stem C.S. under light mircoscope with white background
Acetylcholine receptors in the lipid layer of cell membrane.
Abstract technological design of an artificial molecular structure in many colors. Horizontal wide composition.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
anaplastic thyroid carcinoma with heterologous differentiation (leiomyosarcoma)
Lily leaf c.s. under microscope
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.
Thyroid cancer: Microscopic image of Metastatic papillary carcinoma of thyroid. Reactive change. Lymph node carcinoma.
Liver Fluke Section under light microscope with white background
Showing Light micrograph Type of Tissue Human under the microscope in Lab.
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens. Depth of focus is extremely shallow (just a few microns). Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
High Vaginal Swab (HVS) Gram Stain: Photomicrograph showing Bacterial vaginosis (BV).
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
HER2 (light blue) locked in the inactive conformation by Trastuzumab (left) and Pertuzumab. Trastuzumab has drastically improved the prognosis of HER2-positive breast cancer patients.
Micro world
Isolated human papillomavirus genomes consist of double-stranded circular DNA 3d rendering
Photomicrograph of flatworm,
Human lung pathology under light microscope, The lungs is organs of the respiratory system in humans.
Microscopic image of Microscopic image of nymphaea of aqustio stem
PAPS Smear study of a young women under microscopy showing Atrophic changes in uterus which is unusual at young age.
Myxoid liposarcoma. Myxoid/round cell liposarcoma, or MRCLS, is one of several types of liposarcoma. Liposarcoma is a rare cancer that grows in the cells that store fat in the body. MRCLS usually grows in the arms and legs. These tumors grow slowly, and they can spread to other parts of the body
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