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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.

Cryo-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 Media

Anti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 02

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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 Media

ATP synthase

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The world's smallest motor, ATP synthase, generates energy for the cell. See image 2518 for a labeled version of this illustration. Crabtree + Company View Media

Molecular 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 Media

Anti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 01

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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 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

Atomic Structure of Poppy Enzyme

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The atomic structure of the morphine biosynthetic enzyme salutaridine reductase bound to the cofactor NADPH. The substrate salutaridine is shown entering the active site. Judy Coyle, Donald Danforth Plant Science Center View Media

Genetically identical mycobacteria respond differently to antibiotic 2

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Antibiotic resistance in microbes is a serious health concern. So researchers have turned their attention to how bacteria undo the action of some antibiotics. Bree Aldridge, Tufts University View Media

Kinases (with labels)

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Kinases are enzymes that add phosphate groups (red-yellow structures) to proteins (green), assigning the proteins a code. Crabtree + Company View Media

Kinases

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Kinases are enzymes that add phosphate groups (red-yellow structures) to proteins (green), assigning the proteins a code. Crabtree + Company View Media

Aspirin

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Acetylsalicylate (bottom) is the aspirin of today. Crabtree + Company View Media

A drug's life in the body

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A drug's life in the body. Medicines taken by mouth pass through the liver before they are absorbed into the bloodstream. Crabtree + Company View Media

Bacillus anthracis being killed

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Bacillus anthracis (anthrax) cells being killed by a fluorescent trans-translation inhibitor, which disrupts bacterial protein synthesis. Kenneth Keiler, Penn State University View Media

X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 6

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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

Zinc levels in a plant leaf

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Zinc is required for the function of more than 300 enzymes, including those that help regulate gene expression, in various organisms including humans. Suzana Car, Dartmouth College View Media

Cas4 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 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

Nucleolus subcompartments spontaneously self-assemble 1

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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 Media

A drug's life in the body (with labels)

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A drug's life in the body. Medicines taken by mouth (oral) pass through the liver before they are absorbed into the bloodstream. Crabtree + Company View Media

Activation 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 Media

X-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 Media

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 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

Dose response curves

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Dose-response curves determine how much of a drug (X-axis) causes a particular effect, or a side effect, in the body (Y-axis). Crabtree + Company View Media

X-ray diffraction pattern from a crystallized 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 Media

Genetically identical mycobacteria respond differently to antibiotic 1

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Antibiotic resistance in microbes is a serious health concern. So researchers have turned their attention to how bacteria undo the action of some antibiotics. Bree Aldridge, Tufts 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

X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 2

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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

Bacillus anthracis being killed

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Bacillus anthracis (anthrax) cells being killed by a fluorescent trans-translation inhibitor, which disrupts bacterial protein synthesis. John Alumasa, Keiler Laboratory, Pennsylvania State University View Media

Atomic-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 Media

Cascade reaction promoted by water

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This illustration of an epoxide-opening cascade promoted by water emulates the proposed biosynthesis of some of the Red Tide toxins. Tim Jamison, Massachusetts Institute of Technology View Media

Bioluminescence 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 Media

A Bacillus subtilis biofilm grown in a Petri dish

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Bacterial biofilms are tightly knit communities of bacterial cells growing on, for example, solid surfaces, such as in water pipes or on teeth. Gürol Süel, UCSD View Media

Dynein 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 Media

Aspirin (with labels)

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Acetylsalicylate (bottom) is the aspirin of today. Crabtree + Company View Media

White Poppy (cropped)

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A cropped image of a white poppy. View poppy uncropped here 3424. Judy Coyle, Donald Danforth Plant Science Center View Media

Circadian rhythms and the SCN

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Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle. NIGMS View Media

Fruit fly starvation leads to adipokine accumulation

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Adult Drosophila abdominal fat tissue showing cell nuclei labelled in magenta. Akhila Rajan, Fred Hutchinson Cancer Center View Media

Nucleolus 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 Media

Plasma membrane

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The plasma membrane is a cell's protective barrier. See image 2524 for a labeled version of this illustration. Crabtree + Company View Media

Master clock of the mouse brain

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An image of the area of the mouse brain that serves as the 'master clock,' which houses the brain's time-keeping neurons. The nuclei of the clock cells are shown in blue. Erik Herzog, Washington University in St. Louis View Media

Bioluminescent imaging in adult zebrafish 04

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Luciferase-based imaging enables visualization and quantification of internal organs and transplanted cells in live adult zebrafish. View Media

Ribbon 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 Media

Space-filling model 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 Media

Himastatin

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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 Media

Bioluminescent imaging in adult zebrafish - lateral and 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 Media

Glycan arrays

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The signal is obtained by allowing proteins in human serum to interact with glycan (polysaccharide) arrays. The arrays are shown in replicate so the pattern is clear. Ola Blixt, Scripps Research Institute View Media

See how immune cell acid destroys bacterial proteins

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This animation shows the effect of exposure to hypochlorous acid, which is found in certain types of immune cells, on bacterial proteins. American Chemistry Council View Media

White Poppy

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A white poppy. View cropped image of a poppy here 3423. Judy Coyle, Donald Danforth Plant Science Center View Media

Bond types

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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 Media