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This is a searchable collection of scientific photos, illustrations, and videos. The images and videos in this gallery are licensed under Creative Commons Attribution Non-Commercial ShareAlike 3.0. This license lets you remix, tweak, and build upon this work non-commercially, as long as you credit and license your new creations under identical terms.
Bioluminescent 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 MediaRhodopsin bound to visual arrestin
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Rhodopsin is a pigment in the rod cells of the retina (back of the eye). It is extremely light-sensitive, supporting vision in low-light conditions. Protein Data Bank. View MediaYeast cells with accumulated cell wall material
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Yeast cells that abnormally accumulate cell wall material (blue) at their ends and, when preparing to divide, in their middles. This image was captured using wide-field microscopy with deconvolution. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. View MediaTransmission electron microscopy showing cross-section of the node of Ranvier
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Nodes of Ranvier are short gaps in the myelin sheath surrounding myelinated nerve cells (axons). Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaRespiratory droplet
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This painting shows a cross section of a small respiratory droplet, like the ones that are thought to transmit SARS-CoV-2, the virus that causes COVID-19. Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View MediaCrab larva eye
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Colorized scanning electron micrographs progressively zoom in on the eye of a crab larva. In the higher-resolution frames, bacteria are visible on the eye. Tina Weatherby Carvalho, University of Hawaii at Manoa View MediaPlastic-eating enzymes
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PETase enzyme degrades polyester plastic (polyethylene terephthalate, or PET) into monohydroxyethyl terephthalate (MHET). Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View MediaSynapses in culture
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Cultured hippocampal neurons grown on a substrate of glial cells (astrocytes). The glial cells form the pink/brown underlayment in this image. The tan threads are the neurons. National Center for Microscopy and Imaging Research View MediaHistones in chromatin
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Histone proteins loop together with double-stranded DNA to form a structure that resembles beads on a string. Crabtree + Company View MediaFruit fly sperm cells
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Developing fruit fly spermatids require caspase activity (green) for the elimination of unwanted organelles and cytoplasm via apoptosis. Hermann Steller, Rockefeller University View MediaScanning electron microscopy of the ECM on the surface of a calf muscle
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This image shows the extracellular matrix (ECM) on the surface of a soleus (lower calf) muscle in light brown and blood vessels in pink. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaCellular polarity
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As an egg cell develops, a process called polarization controls what parts ultimately become the embryo's head and tail. This picture shows an egg of the fruit fly Drosophila. Wu-Min Deng, Florida State University View MediaSleep and the fly brain
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In the top snapshots, the brain of a sleep-deprived fruit fly glows orange, marking high concentrations of a synaptic protein called Bruchpilot (BRP) involved in communication between neurons. Chiara Cirelli, University of Wisconsin-Madison View MediaColorful communication
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The marine bacterium Vibrio harveyi glows when near its kind. Bonnie Bassler, Princeton University View MediaLife of an AIDS virus
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HIV is a retrovirus, a type of virus that carries its genetic material not as DNA but as RNA. Crabtree + Company View MediaMicrotubules in hippocampal neurons
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Microtubules (magenta) in neurons of the hippocampus, a part of the brain involved in learning and memory. Microtubules are strong, hollow fibers that provide structural support to cells. Melike Lakadamyali, Perelman School of Medicine at the University of Pennsylvania. View MediaDividing cells showing chromosomes and cell skeleton
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This pig cell is in the process of dividing. The chromosomes (purple) have already replicated and the duplicates are being pulled apart by fibers of the cell skeleton known as microtubules (green). Nasser Rusan, National Heart, Lung, and Blood Institute, National Institutes of Health View MediaBiofilm formed by a pathogen
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A biofilm is a highly organized community of microorganisms that develops naturally on certain surfaces. Scott Chimileski, Ph.D., and Roberto Kolter, Ph.D., Harvard Medical School. View MediaFruit fly in the pink
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Fruit flies are a common model organism for basic medical research. Crabtree + Company View MediaX-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 7
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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 MediaYeast cells entering mitosis
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Yeast cells entering mitosis, also known as cell division. The green and magenta dots are two proteins that play important roles in mitosis. They show where the cells will split. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. View MediaFrom DNA to Protein
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Nucleotides in DNA are copied into RNA, where they are read three at a time to encode the amino acids in a protein. Many parts of a protein fold as the amino acids are strung together. 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 MediaCone cell
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The cone cell of the eye allows you to see in color. Appears in the NIGMS booklet Inside the Cell. Judith Stoffer View MediaMouse brain 3
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Various views of a mouse brain that was genetically modified so that subpopulations of its neurons glow. Prayag Murawala, MDI Biological Laboratory and Hannover Medical School. View MediaRibbon diagram of a cefotaxime-CCD-1 complex
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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 MediaPigment cells in the fin of pearl danio
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Pigment cells are cells that give skin its color. David Parichy, University of Washington View MediaNatcher Building 06
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NIGMS staff are located in the Natcher Building on the NIH campus. Alisa Machalek, National Institute of General Medical Sciences View MediaMouse sperm sections
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This transmission electron micrograph shows sections of mouse sperm tails, or flagella. Tina Weatherby Carvalho, University of Hawaii at Manoa View MediaVideo of Calling Cards in a mouse brain
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The green spots in this mouse brain are cells labeled with Calling Cards, a technology that records molecular events in brain cells as they mature. NIH Director's Blog View MediaArtificial cilia exhibit spontaneous beating
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Researchers have created artificial cilia that wave like the real thing. Zvonimir Dogic View MediaResearch mentor and student
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A research mentor (Lori Eidson) and student (Nina Waldron, on the microscope) were 2009 members of the BRAIN (Behavioral Research Advancements In Neuroscience) program at Georgia State University in A Elizabeth Weaver, Georgia State University 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 MediaGene silencing
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Pretty in pink, the enzyme histone deacetylase (HDA6) stands out against a background of blue-tinted DNA in the nucleus of an Arabidopsis plant cell. Olga Pontes and Craig Pikaard, Washington University View MediaThe Structure of Cilia’s Doublet Microtubules
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Cilia (cilium in singular) are complex molecular machines found on many of our cells. Brown Lab, Harvard Medical School and Veronica Falconieri Hays View MediaMitosis - telophase
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Telophase during mitosis: Nuclear membranes form around each of the two sets of chromosomes, the chromosomes begin to spread out, and the spindle begins to break down. Judith Stoffer View MediaH1 histamine receptor
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The receptor is shown bound to an inverse agonist, doxepin. Raymond Stevens, The Scripps Research Institute View MediaThree muscle fibers; the middle has a defect found in some neuromuscular diseases
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Of the three muscle fibers shown here, the one on the right and the one on the left are normal. The middle fiber is deficient a large protein called nebulin (blue). Christopher Pappas and Carol Gregorio, University of Arizona View MediaProtein clumping in zinc-deficient yeast cells
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The green spots in this image are clumps of protein inside yeast cells that are deficient in both zinc and a protein called Tsa1 that prevents clumping. Colin MacDiarmid and David Eide, University of Wisconsin--Madison View MediaMitosis - prophase
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A cell in prophase, near the start of mitosis: In the nucleus, chromosomes condense and become visible. In the cytoplasm, the spindle forms. Judith Stoffer View MediaThe eye uses many layers of nerve cells to convert light into sight
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This image captures the many layers of nerve cells in the retina. The top layer (green) is made up of cells called photoreceptors that convert light into electrical signals to relay to the brain. Wei Li, National Eye Institute, National Institutes of Health View MediaGlowing glycans
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Sugars light up the cells in this jaw of a 3-day-old zebrafish embryo and highlight a scientific first: labeling and tracking the movements of sugar chains called glycans in a living organism. Carolyn Bertozzi, University of California, Berkeley 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 MediaSerum albumin structure 2
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Serum albumin (SA) is the most abundant protein in the blood plasma of mammals. SA has a characteristic heart-shape structure and is a highly versatile protein. Wladek Minor, University of Virginia View MediaInfluenza virus attaches to host membrane (with labels)
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Influenza A infects a host cell when hemagglutinin grips onto glycans on its surface. Crabtree + Company View MediaX-ray crystallography (with labels)
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X-ray crystallography allows researchers to see structures too small to be seen by even the most powerful microscopes. Crabtree + Company View MediaMicrotubules in African green monkey cells
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Microtubules in African green monkey cells. Microtubules are strong, hollow fibers that provide cells with structural support. Melike Lakadamyali, Perelman School of Medicine at the University of Pennsylvania. View MediaLily mitosis 05
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A light microscope image of a cell from the endosperm of an African globe lily (Scadoxus katherinae). This is one frame of a time-lapse sequence that shows cell division in action. Andrew S. Bajer, University of Oregon, Eugene View MediaTracking cells in a gastrulating zebrafish embryo
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During development, a zebrafish embryo is transformed from a ball of cells into a recognizable body plan by sweeping convergence and extension cell movements. This process is called gastrulation. Liliana Solnica-Krezel, Washington University School of Medicine in St. Louis. View Media