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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.

Bence Jones protein MLE

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A crystal of Bence Jones protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View Media

Chemokine CXCR4 receptor

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The receptor is shown bound to a small molecule peptide called CVX15. Raymond Stevens, The Scripps Research Institute View Media

Active Site of E. coli response regulator PhoB

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Active site of E. coli response regulator PhoB. Ann Stock, Rutgers University View Media

HIV Capsid

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This image is a computer-generated model of the approximately 4.2 million atoms of the HIV capsid, the shell that contains the virus' genetic material. Juan R. Perilla and the Theoretical and Computational Biophysics Group, University of Illinois at Urbana-Champaign View Media

RAC1 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 Media

Bacteriophage 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 Media

Histones 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 Media

Enzymes 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 Media

Seeing signaling protein activation in cells 03

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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 Media

X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 4

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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 Media

Dopamine D3 receptor

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The receptor is shown bound to an antagonist, eticlopride Raymond Stevens, The Scripps Research Institute View Media

Human 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 Media

Dynamic cryo-EM model of the human transcription preinitiation complex

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Gene transcription is a process by which information encoded in DNA is transcribed into RNA. Eva Nogales, Berkeley Lab View Media

Nuclear Lamina

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The 3D single-molecule super-resolution reconstruction of the entire nuclear lamina in a HeLa cell was acquired using the TILT3D platform. Anna-Karin Gustavsson, Ph.D. View Media

Cytochrome 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 Media

Ion channel

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A special "messy" region of a potassium ion channel is important in its function. Yu Zhoi, Christopher Lingle Laboratory, Washington University School of Medicine in St. Louis View Media

Phenylalanine tRNA molecule

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Phenylalanine tRNA showing the anticodon (yellow) and the amino acid, phenylalanine (blue and red spheres). Patrick O'Donoghue and Dieter Soll, Yale University View Media

Diversity oriented synthesis: generating skeletal diversity using folding processes

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This 1 1/2-minute video animation was produced for chemical biologist Stuart Schreiber's lab page. The animation shows how diverse chemical structures can be produced in the lab. Eric Keller View Media