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X-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 MediaBuilding blocks and folding of proteins
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Proteins are made of amino acids hooked end-to-end like beads on a necklace. To become active, proteins must twist and fold into their final, or "native," conformation. Crabtree + Company View MediaPig alpha amylase
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Crystals of porcine alpha amylase protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaThe 26S proteasome engages with a protein substrate
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The proteasome is a critical multiprotein complex in the cell that breaks down and recycles proteins that have become damaged or are no longer needed. Andreas Martin, HHMI View MediaBacterial nanowire model
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A model of a Geobacter sulfurreducens nanowire created from cryo-electron microscopy images. Edward Egelman, University of Virginia. View MediaPig trypsin crystal
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A crystal of pig trypsin protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaSeeing signaling protein activation in cells 04
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Cdc42, a member of the Rho family of small guanosine triphosphatase (GTPase) proteins, regulates multiple cell functions, including motility, proliferation, apoptosis, and cell morphology. Klaus Hahn, University of North Carolina, Chapel Hill Medical School View MediaSARS-CoV-2 nucleocapsid dimer
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In SARS-CoV-2, the virus that causes COVID-19, nucleocapsid is a complex molecule with many functional parts. Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View MediaStructure of a key antigen protein involved with Hepatitis C Virus infection
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A three-dimensional representation of the structure of E2, a key antigen protein involved with hepatitis C virus infection. Mansun Law Associate Professor Department of Immunolgy and Microbial Science The Scripps Research Institute View MediaFungal lipase (1)
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Crystals of fungal lipase protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaJack bean concanavalin A
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Crystals of jack bean concanavalin A protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaX-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 3
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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 MediaHuman Adenovirus
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The cryo-EM structure of human adenovirus D26 (HAdV-D26) at near atomic resolution (3.7 Å), determined in collaboration with the NRAMM facility*. National Resource for Automated Molecular Microscopy http://nramm.nysbc.org/nramm-images/ Source: Bridget Carragher View MediaBacterial ribosome assembly
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3D reconstructions of two stages in the assembly of the bacterial ribosome created from time-resolved cryo-electron microscopy images. Ribosomes translate genetic instructions into proteins. Joachim Frank, Columbia University. View MediaHuman opioid receptor structure superimposed on poppy
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Opioid receptors on the surfaces of brain cells are involved in pleasure, pain, addiction, depression, psychosis, and other conditions. Raymond Stevens, The Scripps Research Institute View MediaSphingolipid S1P1 receptor
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The receptor is shown bound to an antagonist, ML056. Raymond Stevens, The Scripps Research Institute View MediaDisease-susceptible Arabidopsis leaf
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This is a magnified view of an Arabidopsis thaliana leaf after several days of infection with the pathogen Hyaloperonospora arabidopsidis. Jeff Dangl, University of North Carolina, Chapel Hill View MediaSecreted protein from Mycobacteria
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Model of a major secreted protein of unknown function, which is only found in mycobacteria, the class of bacteria that causes tuberculosis. Mycobacterium Tuberculosis Center, PSI 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 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 MediaBovine milk alpha-lactalbumin (1)
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A crystal of bovine milk alpha-lactalbumin protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaWreath-shaped protein from X. campestris
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Crystal structure of a protein with unknown function from Xanthomonas campestris, a plant pathogen. Eight copies of the protein crystallized to form a ring. Ken Schwinn and Sonia Espejon-Reynes, New York SGX Research Center for Structural Genomics View MediaInsulin and protein interact in pancreatic beta cells
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A large number of proteins interact with the hormone insulin as it is produced in and secreted from the beta cells of the pancreas. William E. Balch, The Scripps Research Institute View MediaEnzymes convert subtrates into products (with labels)
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Enzymes convert substrates into products very quickly. See image 2521 for an unlabeled version of this illustration. Featured in The Chemistry of Health. Crabtree + Company View MediaProtein from Arabidopsis thaliana
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NMR solution structure of a plant protein that may function in host defense. This protein was expressed in a convenient and efficient wheat germ cell-free system. Center for Eukaryotic Structural Genomics View MediaCryo-electron microscopy revealing the "wasabi receptor"
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The TRPA1 protein is responsible for the burn you feel when you taste a bite of sushi topped with wasabi. Jean-Paul Armache, UCSF View MediaHsp33 figure 1
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Featured in the March 15, 2012 issue of Biomedical Beat. Related to Hsp33 Figure 2, image 3355. Ursula Jakob and Dana Reichmann, University of Michigan View MediaProtein from E. faecalis
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X-ray structure of a DNA repair enzyme superfamily representative from the human gastrointestinal bacterium Enterococcus faecalis. Midwest Center for Structural Genomics View MediaDopamine D3 receptor
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The receptor is shown bound to an antagonist, eticlopride Raymond Stevens, The Scripps Research Institute View MediaAminopeptidase N from N. meningitidis
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Model of the enzyme aminopeptidase N from the human pathogen Neisseria meningitidis, which can cause meningitis epidemics. Midwest Center for Structural Genomics, PSI 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 MediaProtective membrane and membrane proteins of the dengue virus visualized with cryo-EM
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Dengue virus is a mosquito-borne illness that infects millions of people in the tropics and subtropics each year. Like many viruses, dengue is enclosed by a protective membrane. Hong Zhou, UCLA View Media3-D Architecture of a Synapse
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This image shows the structure of a synapse, or junction between two nerve cells in three dimensions. From the brain of a mouse. Anton Maximov, The Scripps Research Institute, La Jolla, CA View MediaCoronavirus spike protein structure
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Coronaviruses are enveloped viruses responsible for 30 percent of mild respiratory infections and atypical deadly pneumonia in humans worldwide. Melody Campbell, UCSF View MediaRibonuclease P structure
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Ribbon diagram showing the structure of Ribonuclease P with tRNA. PDB entry 3Q1Q, molecular modeling by Fred Friedman, NIGMS View MediaElectrostatic map of human spermine synthase
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From PDB entry 3c6k, Crystal structure of human spermine synthase in complex with spermidine and 5-methylthioadenosine. Emil Alexov, Clemson University View MediaRelapsing fever bacterium (gray) and red blood cells
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Relapsing fever is caused by a bacterium and transmitted by certain soft-bodied ticks or body lice. The disease is seldom fatal in humans, but it can be very serious and prolonged. NIAID View MediaHen egg lysozyme (1)
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Crystals of hen egg lysozyme protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaProtein formation
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Proteins are 3D structures made up of smaller units. DNA is transcribed to RNA, which in turn is translated into amino acids. NIGMS, with the folded protein illustration adapted from Jane Richardson, Duke University Medical Center View MediaCell Nucleus and Lipid Droplets
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A cell nucleus (blue) surrounded by lipid droplets (yellow). James Olzmann, University of California, Berkeley 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 MediaNucleosome
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Like a strand of white pearls, DNA wraps around an assembly of special proteins called histones (colored) to form the nucleosome, a structure responsible for regulating genes and condensing DNA strand Karolin Luger, Colorado State University View MediaCysteine dioxygenase from mouse
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Model of the mammalian iron enzyme cysteine dioxygenase from a mouse. Center for Eukaryotic Structural Genomics, PSI View MediaStructure of telomerase
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Scientists recently discovered the full molecular structure of telomerase, an enzyme important to aging and cancer. Jiansen Jiang, Edward J. Miracco, Z. Hong Zhou and Juli Feigon, University of California, Los Angeles; Kathleen Collins, University of California, Berkeley View MediaMicroscopy image of bird-and-flower DNA origami
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An atomic force microscopy image shows DNA folded into an intricate, computer-designed structure. Hao Yan, Arizona State University View MediaDynein moving along microtubules
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Dynein (green) is a motor protein that “walks” along microtubules (red, part of the cytoskeleton) and carries its cargo along with it. This video was captured through fluorescence microscopy. Morgan DeSantis, University of Michigan. 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 MediaCalcium uptake during ATP production in mitochondria
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Living primary mouse embryonic fibroblasts. Mitochondria (green) stained with the mitochondrial membrane potential indicator, rhodamine 123. Nuclei (blue) are stained with DAPI. Lili Guo, Perelman School of Medicine, University of Pennsylvania View MediaFruit fly embryo
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Cells in an early-stage fruit fly embryo, showing the DIAP1 protein (pink), an inhibitor of apoptosis. Hermann Steller, Rockefeller University View MediaKappa opioid receptor
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The receptor is shown bound to an antagonist, JDTic. Raymond Stevens, The Scripps Research Institute View Media