Image and Video Gallery
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.
Protein crystals
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Structural biologists create crystals of proteins, shown here, as a first step in a process called X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaAbnormal, spiky fibroblast
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This is a fibroblast, a connective tissue cell that plays an important role in wound healing. Normal fibroblasts have smooth edges. Praveen Suraneni, Stowers Institute for Medical Research, Kansas City, Mo. View MediaZ rings in bacterial division
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Lab-made liposomes contract where Z rings have gathered together and the constriction forces are greatest (arrows). Masaki Osawa, Duke University 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 MediaNetwork 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 MediaVDAC-1 (4)
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The structure of the pore-forming protein VDAC-1 from humans. Gerhard Wagner, Harvard Medical School View MediaTex protein
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Model of a member from the Tex protein family, which is implicated in transcriptional regulation and highly conserved in eukaryotes and prokaryotes. New York Structural GenomiX Research Consortium, PSI View MediaCryo-EM reveals how the HIV capsid attaches to a human protein to evade immune detection
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The illustration shows the capsid of human immunodeficiency virus (HIV) whose molecular features were resolved with cryo-electron microscopy (cryo-EM). Juan R. Perilla, University of Illinois at Urbana-Champaign View MediaVDAC video 03
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This video shows the structure of the pore-forming protein VDAC-1 from humans. Gerhard Wagner, Harvard Medical School View MediaWorm sperm
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To develop a system for studying cell motility in unnatrual conditions -- a microscope slide instead of the body -- Tom Roberts and Katsuya Shimabukuro at Florida State University disassembled and rec Tom Roberts, Florida State University 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 MediaBovine trypsin
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A crystal of bovine trypsin protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaMolecular model of freshly made Rous sarcoma virus (RSV)
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Viruses have been the foes of animals and other organisms for time immemorial. Boon Chong Goh, University of Illinois at Urbana-Champaign View MediaCells keep their shape with actin filaments and microtubules
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This image shows a normal fibroblast, a type of cell that is common in connective tissue and frequently studied in research labs. James J. Faust and David G. Capco, Arizona State University View MediaActin filaments bundled around the dynamin helical polymer
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Multiple actin filaments (magenta) are organized around a dynamin helical polymer (rainbow colored) in this model derived from cryo-electron tomography. Elizabeth Chen, University of Texas Southwestern Medical Center. View MediaRepairing DNA
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Like a watch wrapped around a wrist, a special enzyme encircles the double helix to repair a broken strand of DNA. Tom Ellenberger, Washington University School of Medicine View MediaHuman endoplasmic reticulum membrane protein complex
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A 3D model of the human endoplasmic reticulum membrane protein complex (EMC) that identifies its nine essential subunits. Rebecca Voorhees, California Institute of Technology. View MediaDisrupted vascular development in frog embryos
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Disassembly of vasculature in kdr:GFP frogs following addition of 250 µM TBZ. Related to images 3404 and 3505. Hye Ji Cha, University of Texas at Austin View MediaBacteriophage P22 capsid, detail
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Detail of a subunit of the capsid, or outer cover, of bacteriophage P22, a virus that infects the Salmonella bacteria. Dr. Wah Chiu, Baylor College of Medicine 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 MediaWeblike sheath covering developing egg chambers in a giant grasshopper
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The lubber grasshopper, found throughout the southern United States, is frequently used in biology classes to teach students about the respiratory system of insects. Kevin Edwards, Johny Shajahan, and Doug Whitman, Illinois State University. View MediaClathrin-mediated endocytosis
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Endocytosis is the process by which cells are able to take up membrane and extracellular materials through the formation of a small intracellular bubble, called a vesicle. Janet Iwasa, University of Utah View MediaMouse brain slice showing nerve cells
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A 20-µm thick section of mouse midbrain. The nerve cells are transparent and weren’t stained. Michael Shribak, Marine Biological Laboratory/University of Chicago. 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 MediaNicotinic acid phosphoribosyltransferase
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Model of the enzyme nicotinic acid phosphoribosyltransferase. Berkeley Structural Genomics Center, PSI View MediaStructure of heme, side 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 MediaPartial Model of a Cilium’s Doublet Microtubule
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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 MediaMolecules blocking Huntington's protein production
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The molecules that glow blue in these cultured cells prevent the expression of the mutant proteins that cause Huntington's disease. Jiaxin Hu, David W. Dodd and Robert H. E. Hudson, UT Southwestern Medical Center View MediaSerum albumin structure 3
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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 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 MediaBacterial alpha amylase
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A crystal of bacterial alpha amylase protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine 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 MediaMap of protein structures 02
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A global "map of the protein structure universe" indicating the positions of specific proteins. Berkeley Structural Genomics Center, PSI View MediaSection of an electron density map
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Electron density maps such as this one are generated from the diffraction patterns of X-rays passing through protein crystals. The Southeast Collaboratory for Structural Genomics View MediaZinc finger
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The structure of a gene-regulating zinc finger protein bound to DNA. Jeremy M. Berg, National Institute of General Medical Sciences 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 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 MediaAntitoxin GhoS (Illustration 2)
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Structure of the bacterial antitoxin protein GhoS. GhoS inhibits the production of a bacterial toxin, GhoT, which can contribute to antibiotic resistance. Rebecca Page and Wolfgang Peti, Brown University and Thomas K. Wood, Pennsylvania State University 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 MediaEnzymes convert subtrates into products
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Enzymes convert substrates into products very quickly. See image 2522 for a labeled version of this illustration. Featured in The Chemistry of Health. Crabtree + Company View MediaNuclear Lamina – Three Views
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Three views of the entire nuclear lamina of a HeLa cell produced by tilted light sheet 3D single-molecule super-resolution imaging using a platform termed TILT3D. Anna-Karin Gustavsson, Ph.D. View MediaFluorescent C. elegans showing muscle and ribosomal protein
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C. elegans, a tiny roundworm, with a ribosomal protein glowing red and muscle fibers glowing green. Researchers used these worms to study a molecular pathway that affects aging. Jarod Rollins, Mount Desert Island Biological Laboratory. 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 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 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 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 MediaArtificial cilia exhibit spontaneous beating
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Researchers have created artificial cilia that wave like the real thing. Zvonimir Dogic View MediaCas4 nuclease protein structure
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This wreath represents the molecular structure of a protein, Cas4, which is part of a system, known as CRISPR, that bacteria use to protect themselves against viral invaders. Fred Dyda, NIDDK View MediaDNase
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Crystals of DNase protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaRNase A (1)
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A crystal of RNase A protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View Media