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Antibodies in silica honeycomb
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Antibodies are among the most promising therapies for certain forms of cancer, but patients must take them intravenously, exposing healthy tissues to the drug and increasing the risk of side effects. Chenghong Lei, Pacific Northwest National Laboratory & Karl Erik Hellstrom, University of Washington View MediaShiga toxin being sorted inside a cell
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Shiga toxin (green) is sorted from the endosome into membrane tubules (red), which then pinch off and move to the Golgi apparatus. Somshuvra Mukhopadhyay, The University of Texas at Austin, and Adam D. Linstedt, Carnegie Mellon University View MediaAnti-tumor drug ecteinascidin 743 (ET-743) with hydrogens 04
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Ecteinascidin 743 (ET-743, brand name Yondelis), was discovered and isolated from a sea squirt, Ecteinascidia turbinata, by NIGMS grantee Kenneth Rinehart at the University of Illinois. Timothy Jamison, Massachusetts Institute of Technology View MediaGenetic mosaicism in fruit flies
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Fat tissue from the abdomen of a genetically mosaic adult fruit fly. Genetic mosaicism means that the fly has cells with different genotypes even though it formed from a single zygote. Akhila Rajan, Fred Hutchinson Cancer Center View MediaX-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 5
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X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor. Markus A. Seeliger, Stony Brook University Medical School and David R. Liu, Harvard University View MediaMaster clock of the mouse brain
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An image of the area of the mouse brain that serves as the 'master clock,' which houses the brain's time-keeping neurons. The nuclei of the clock cells are shown in blue. Erik Herzog, Washington University in St. Louis View MediaIndependence Day
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This graphic that resembles a firework was created from a picture of a fruit fly spermatid. Sigi Benjamin-Hong, Rockefeller University View MediaBioluminescent imaging in adult zebrafish - lateral and overhead view
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Luciferase-based imaging enables visualization and quantification of internal organs and transplanted cells in live adult zebrafish. Kenneth Poss, Duke University View MediaNucleolus subcompartments spontaneously self-assemble 2
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The nucleolus is a small but very important protein complex located in the cell's nucleus. Nilesh Vaidya, Princeton University View MediaCrystals of CCD-1 in complex with cefotaxime
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CCD-1 is an enzyme produced by the bacterium Clostridioides difficile that helps it resist antibiotics. Keith Hodgson, Stanford University. View MediaA drug's life in the body (with labels)
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A drug's life in the body. Medicines taken by mouth (oral) pass through the liver before they are absorbed into the bloodstream. Crabtree + Company View MediaActive site of sulfite oxidase
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Sulfite oxidase is an enzyme that is essential for normal neurological development in children. John Enemark, University of Arizona View MediaCarbon building blocks (with examples)
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The arrangement of identical molecular components can make a dramatic difference. For example, carbon atoms can be arranged into dull graphite (left) or sparkly diamonds (right). Crabtree + Company View MediaCascade reaction promoted by water
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This illustration of an epoxide-opening cascade promoted by water emulates the proposed biosynthesis of some of the Red Tide toxins. Tim Jamison, Massachusetts Institute of Technology View MediaActivation energy (with labels)
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To become products, reactants must overcome an energy hill. See image 2525 for an unlabeled version of this illustration. Crabtree + Company View MediaKinases
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Kinases are enzymes that add phosphate groups (red-yellow structures) to proteins (green), assigning the proteins a code. Crabtree + Company View MediaGenetically identical mycobacteria respond differently to antibiotic 2
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Antibiotic resistance in microbes is a serious health concern. So researchers have turned their attention to how bacteria undo the action of some antibiotics. Bree Aldridge, Tufts University View MediaHimastatin and bacteria
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A model of the molecule himastatin overlaid on an image of Bacillus subtilis bacteria. Mohammad Movassaghi, Massachusetts Institute of Technology. View MediaBioluminescent imaging in adult zebrafish - overhead view
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Luciferase-based imaging enables visualization and quantification of internal organs and transplanted cells in live adult zebrafish. Kenneth Poss, Duke University View MediaAnti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 02
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Ecteinascidin 743 (ET-743, brand name Yondelis), was discovered and isolated from a sea squirt, Ecteinascidia turbinata, by NIGMS grantee Kenneth Rinehart at the University of Illinois. Timothy Jamison, Massachusetts Institute of Technology View MediaX-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 1
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X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor. Markus A. Seeliger, Stony Brook University Medical School and David R. Liu, Harvard University View MediaBioluminescent imaging in adult zebrafish 04
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Luciferase-based imaging enables visualization and quantification of internal organs and transplanted cells in live adult zebrafish. View MediaCCP enzyme
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The enzyme CCP is found in the mitochondria of baker’s yeast. Scientists study the chemical reactions that CCP triggers, which involve a water molecule, iron, and oxygen. Protein Data Bank. View MediaHimastatin, 360-degree view
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A 360-degree view of the molecule himastatin, which was first isolated from the bacterium Streptomyces himastatinicus. Himastatin shows antibiotic activity. Mohammad Movassaghi, Massachusetts Institute of Technology. View MediaDrugs enter skin (with labels)
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Drugs enter different layers of skin via intramuscular, subcutaneous, or transdermal delivery methods. See image 2531 for an unlabeled version of this illustration. Crabtree + Company View MediaGenetically identical mycobacteria respond differently to antibiotic 1
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Antibiotic resistance in microbes is a serious health concern. So researchers have turned their attention to how bacteria undo the action of some antibiotics. Bree Aldridge, Tufts University View MediaKinesin moves cellular cargo
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A protein called kinesin (blue) is in charge of moving cargo around inside cells and helping them divide. Charles Sindelar, Yale University View MediaFruit fly brain responds to adipokines
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Drosophila adult brain showing that an adipokine (fat hormone) generates a response from neurons (aqua) and regulates insulin-producing neurons (red).Akhila Rajan, Fred Hutchinson Cancer Center View Media
Glucose and sucrose
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Glucose (top) and sucrose (bottom) are sugars made of carbon, hydrogen, and oxygen atoms. Carbohydrates include simple sugars like these and are the main source of energy for the human body. Crabtree + Company View MediaCytochrome structure with anticancer drug
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This image shows the structure of the CYP17A1 enzyme (ribbons colored from blue N-terminus to red C-terminus), with the associated heme colored black. Emily Scott, University of Kansas View MediaBond types (with labels)
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Ionic and covalent bonds hold molecules, like sodium chloride and chlorine gas, together. Hydrogen bonds among molecules, notably involving water, also play an important role in biology. Crabtree + Company View MediaCancer Cells Glowing from Luciferin
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The activator cancer cell culture, right, contains a chemical that causes the cells to emit light when in the presence of immune cells. Mark Sellmyer, Stanford University School of Medicine View MediaSerratezomine A
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A 3-D model of the alkaloid serratezomine A shows the molecule's complex ring structure. View MediaZinc levels in a plant leaf
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Zinc is required for the function of more than 300 enzymes, including those that help regulate gene expression, in various organisms including humans. Suzana Car, Dartmouth College View MediaActivation energy
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To become products, reactants must overcome an energy hill. See image 2526 for a labeled version of this illustration. Featured in The Chemistry of Health. Crabtree + Company View MediaAnti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 04
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Ecteinascidin 743 (ET-743, brand name Yondelis), was discovered and isolated from a sea squirt, Ecteinascidia turbinata, by NIGMS grantee Kenneth Rinehart at the University of Illinois. Timothy Jamison, Massachusetts Institute of Technology View MediaPlasma membrane
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The plasma membrane is a cell's protective barrier. See image 2524 for a labeled version of this illustration. Featured in The Chemistry of Health. Crabtree + Company View MediaAtomic-level structure of the HIV capsid
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This animation shows atoms of the HIV capsid, the shell that encloses the virus's genetic material. Juan R. Perilla and the Theoretical and Computational Biophysics Group, University of Illinois at Urbana-Champaign View MediaBacillus anthracis being killed
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Bacillus anthracis (anthrax) cells being killed by a fluorescent trans-translation inhibitor, which disrupts bacterial protein synthesis. Kenneth Keiler, Penn State University View MediaCiclo circadiano de un adolescente típico
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Los ritmos circadianos son cambios físicos, mentales y conductuales que siguen un ciclo de 24 horas. NIGMS View MediaWhite Poppy
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A white poppy. View cropped image of a poppy here 3423. Judy Coyle, Donald Danforth Plant Science Center View MediaEnzyme reaction
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Enzymes speed up chemical reactions by reducing the amount of energy needed for the reactions. NIGMS View MediaAnti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 03
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Ecteinascidin 743 (ET-743, brand name Yondelis), was discovered and isolated from a sea squirt, Ecteinascidia turbinata, by NIGMS grantee Kenneth Rinehart at the University of Illinois. Timothy Jamison, Massachusetts Institute of Technology View MediaKinases (with labels)
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Kinases are enzymes that add phosphate groups (red-yellow structures) to proteins (green), assigning the proteins a code. Crabtree + Company View MediaX-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 6
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X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor. Markus A. Seeliger, Stony Brook University Medical School and David R. Liu, Harvard University View MediaWhite Poppy (cropped)
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A cropped image of a white poppy. View poppy uncropped here 3424. Judy Coyle, Donald Danforth Plant Science Center View MediaIn vitro assembly of a cell-signaling pathway
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T cells are white blood cells that are important in defending the body against bacteria, viruses and other pathogens. Xiaolei Su, HHMI Whitman Center of the Marine Biological Laboratory View MediaPrecisely Delivering Chemical Cargo to Cells
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Moving protein or other molecules to specific cells to treat or examine them has been a major biological challenge. Nature Nanotechnology View MediaATP synthase
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The world's smallest motor, ATP synthase, generates energy for the cell. See image 2518 for a labeled version of this illustration. Crabtree + Company View Media