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Network Map
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This network map shows the overlap (green) between the long QT syndrome (yellow) and epilepsy (blue) protein-interaction neighborhoods located within the human interactome. Seth Berger, Mount Sinai School of Medicine View MediaHeLa cells
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Scanning electron micrograph of an apoptotic HeLa cell. Zeiss Merlin HR-SEM. National Center for Microscopy and Imaging Research View MediaKappa opioid receptor
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The receptor is shown bound to an antagonist, JDTic. Raymond Stevens, The Scripps Research Institute View MediaEarly development in Arabidopsis
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Early on, this Arabidopsis plant embryo picks sides: While one end will form the shoot, the other will take root underground. Zachery R. Smith, Jeff Long lab at the Salk Institute for Biological Studies View MediaRSV-Infected Cell
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Viral RNA (red) in an RSV-infected cell. Eric Alonas and Philip Santangelo, Georgia Institute of Technology and Emory University View MediaCellular aging
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A protein called tubulin (green) accumulates in the center of a nucleus (outlined in pink) from an aging cell. Maximiliano D'Angelo and Martin Hetzer, Salk Institute View MediaRNA interference
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RNA interference or RNAi is a gene-silencing process in which double-stranded RNAs trigger the destruction of specific RNAs. Crabtree + Company View MediaSymmetrically and asymmetrically elongating cells
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Merged fluorescent images of symmetrically (left) or asymmetrically (right) elongating HeLa cells at the end of early anaphase (magenta) and late anaphase (green). Tomomi Kiyomitsu and Iain M. Cheeseman, Whitehead Institute for Biomedical Research View MediaDividing cell
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As this cell was undergoing cell division, it was imaged with two microscopy techniques: differential interference contrast (DIC) and confocal. The DIC view appears in blue and shows the entire cell. Dylan T. Burnette, Vanderbilt University School of Medicine. View MediaEndoplasmic reticulum abnormalities
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Human cells with the gene that codes for the protein FIT2 deleted. Green indicates an endoplasmic reticulum (ER) resident protein. Michel Becuwe, Harvard University. View MediaLily mitosis 06
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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 MediaRetinal pigment epithelium derived from human ES cells
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This color-enhanced image is a scanning electron microscope image of retinal pigment epithelial (RPE) cells derived from human embryonic stem cells. David Hinton lab, University of Southern California, via CIRM View MediaPulsating response to stress in bacteria - video
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By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes. Michael Elowitz, Caltech University View MediaStructure of heme, top view
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Molecular model of the struture of heme. Heme is a small, flat molecule with an iron ion (dark red) at its center. Rachel Kramer Green, RCSB Protein Data Bank View MediaRAC1 activation in motile fibroblast
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Novel biosensor system maps the timing and location of Rac protein activation in a living mouse embryo fibroblast. Klaus Hahn, University of North Carolina, Chapel Hill Medical School View MediaMovie of in 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 MediaFly by night
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This fruit fly expresses green fluorescent protein (GFP) in the same pattern as the period gene, a gene that regulates circadian rhythm and is expressed in all sensory neurons on the surface of the fl Jay Hirsh, University of Virginia View MediaIntasome
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Salk researchers captured the structure of a protein complex called an intasome (center) that lets viruses similar to HIV establish permanent infection in their hosts. National Resource for Automated Molecular Microscopy http://nramm.nysbc.org/nramm-images/ Source: Bridget Carragher View MediaCapillary protein crystallization robot
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This ACAPELLA robot for capillary protein crystallization grows protein crystals, freezes them, and centers them without manual intervention. Structural Genomics of Pathogenic Protozoa Consortium View MediaDense tubular matrices in the peripheral endoplasmic reticulum (ER) 2
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Three-dimensional reconstruction of a tubular matrix in a thin section of the peripheral endoplasmic reticulum between the plasma membranes of the cell. Jennifer Lippincott-Schwartz, Howard Hughes Medical Institute Janelia Research Campus, Virginia View MediaMitochondrion from insect flight muscle
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This is a tomographic reconstruction of a mitochondrion from an insect flight muscle. National Center for Microscopy and Imaging Research 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 MediaMitosis - metaphase
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A cell in metaphase during mitosis: The copied chromosomes align in the middle of the spindle. Judith Stoffer View MediaGFP sperm
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Fruit fly sperm cells glow bright green when they express the gene for green fluorescent protein (GFP). 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 MediaHydra 01
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Hydra magnipapillata is an invertebrate animal used as a model organism to study developmental questions, for example the formation of the body axis. Hiroshi Shimizu, National Institute of Genetics in Mishima, Japan 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 MediaLife of an AIDS virus (with labels and stages)
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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 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 MediaNucleolus subcompartments spontaneously self-assemble 4
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What looks a little like distant planets with some mysterious surface features are actually assemblies of proteins normally found in the cell's nucleolus, a small but very important protein complex lo Nilesh Vaidya, Princeton University View MediaBioluminescence in a Tube
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Details about the basic biology and chemistry of the ingredients that produce bioluminescence are allowing scientists to harness it as an imaging tool. Credit: Nathan Shaner, Scintillon Institute. Nathan Shaner, Scintillon Institute View MediaPanB from M. tuberculosis (1)
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Model of an enzyme, PanB, from Mycobacterium tuberculosis, the bacterium that causes most cases of tuberculosis. This enzyme is an attractive drug target. Mycobacterium Tuberculosis Center, PSI View MediaLily mitosis 04
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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 MediaTransmission electron microscopy of coronary artery wall with elastin-rich ECM pseudocolored in light brown
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Elastin is a fibrous protein in the extracellular matrix (ECM). It is abundant in artery walls like the one shown here. As its name indicates, elastin confers elasticity. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaActin flow
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Speckle microscopy analysis of actin cytoskeleton force. This is an example of NIH-supported research on single-cell analysis. Gaudenz Danuser, Harvard Medical School View MediaFruit fly ovarioles
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Three fruit fly (Drosophila melanogaster) ovarioles (yellow, blue, and magenta) with egg cells visible inside them. Ovarioles are tubes in the reproductive systems of female insects. Vladimir I. Gelfand, Feinberg School of Medicine, Northwestern University. View MediaFluorescent microscopy of kidney tissue
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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. Tom Deerinck , National Center for Microscopy and Imaging Research View MediaHaplotypes (with labels)
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Haplotypes are combinations of gene variants that are likely to be inherited together within the same chromosomal region. Crabtree + Company View MediaCircadian rhythm
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The human body keeps time with a master clock called the suprachiasmatic nucleus or SCN. Crabtree + Company View MediaCell-like compartments from frog eggs 4
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Cell-like compartments that spontaneously emerged from scrambled frog eggs, with nuclei (blue) from frog sperm. Endoplasmic reticulum (red) and microtubules (green) are also visible. Xianrui Cheng, Stanford University School of Medicine. View MediaSpreading Cells- 02
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Cells move forward with lamellipodia and filopodia supported by networks and bundles of actin filaments. Proper, controlled cell movement is a complex process. Rong Li and Praveen Suraneni, Stowers Institute for Medical Research View MediaDNA replication origin recognition complex (ORC)
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A study published in March 2012 used cryo-electron microscopy to determine the structure of the DNA replication origin recognition complex (ORC), a semi-circular, protein complex (yellow) that recogni Huilin Li, Brookhaven National Laboratory View MediaSea urchin embryo 05
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Stereo triplet of a sea urchin embryo stained to reveal actin filaments (orange) and microtubules (blue). George von Dassow, University of Washington View MediaAutomated crystal screening system
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Automated crystal screening systems such as the one shown here are becoming a common feature at synchrotron and other facilities where high-throughput crystal structure determination is being carried Southeast Collaboratory for Structural Genomics View MediaCentral dogma, illustrated (with labels)
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DNA encodes RNA, which encodes protein. DNA is transcribed to make messenger RNA (mRNA). The mRNA sequence (dark red strand) is complementary to the DNA sequence (blue strand). Crabtree + Company View MediaHimastatin
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A model of the molecule himastatin, which was first isolated from the bacterium Streptomyces himastatinicus. Himastatin shows antibiotic activity. Mohammad Movassaghi, Massachusetts Institute of Technology. View MediaMitochondria from rat heart muscle cell_2
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These mitochondria (brown) are from the heart muscle cell of a rat. Mitochondria have an inner membrane that folds in many places (and that appears here as striations). National Center for Microscopy and Imaging Research View MediaMolecular view of glutamatergic synapse
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This illustration highlights spherical pre-synaptic vesicles that carry the neurotransmitter glutamate. Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View MediaTonB protein in gram-negative bacteria
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The green in this image highlights a protein called TonB, which is produced by many gram-negative bacteria, including those that cause typhoid fever, meningitis and dysentery. Phillip Klebba, Kansas State University View MediaIntracellular forces
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Force vectors computed from actin cytoskeleton flow. This is an example of NIH-supported research on single-cell analysis. Gaudenz Danuser, Harvard Medical School View Media