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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.

Fluorescent microscopy of kidney tissue--close-up

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This photograph of kidney tissue, taken using fluorescent light microscopy, shows a close-up view of part of image 3723. Tom Deerinck , National Center for Microscopy and Imaging Research View Media

X-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 Media

C. elegans trapped by carnivorous fungus

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Real-time footage of Caenorhabditis elegans, a tiny roundworm, trapped by a carnivorous fungus, Arthrobotrys dactyloides. Michael Shribak, Marine Biological Laboratory/University of Chicago. View Media

Group of fluorescent C. elegans showing muscle and ribosomal protein

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Three C. elegans, tiny roundworms, 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 Media

Aminopeptidase 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 Media

Cell-like compartments from frog eggs 3

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Cell-like compartments that spontaneously emerged from scrambled frog eggs. Endoplasmic reticulum (red) and microtubules (green) are visible. Image created using epifluorescence microscopy. Xianrui Cheng, Stanford University School of Medicine. View Media

Tongue 1

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Microscopy image of tongue. One in a series of two, see image 5811 National Center for Microscopy and Imaging Research (NCMIR) View Media

Bacterial glucose isomerase

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

Structure 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 Media

Zebrafish embryo

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Just 22 hours after fertilization, this zebrafish embryo is already taking shape. By 36 hours, all of the major organs will have started to form. Philipp Keller, Bill Lemon, Yinan Wan, and Kristin Branson, Janelia Farm Research Campus, Howard Hughes Medical Institute, Ashburn, Va. View Media

Trigonium diatom

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A Trigonium diatom imaged by a quantitative orientation-independent differential interference contrast (OI-DIC) microscope. Michael Shribak, Marine Biological Laboratory/University of Chicago. View Media

Assembly of the HIV capsid

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The HIV capsid is a pear-shaped structure that is made of proteins the virus needs to mature and become infective. John Grime and Gregory Voth, The University of Chicago View Media

CRISPR surveillance complex

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This image shows how the CRISPR surveillance complex is disabled by two copies of anti-CRISPR protein AcrF1 (red) and one AcrF2 (light green). NRAMM National Resource for Automated Molecular Microscopy http://nramm.nysbc.org/nramm-images/ Source: Bridget Carragher View Media

Respiratory 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 Media

Fruit fly in the pink

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Fruit flies are a common model organism for basic medical research. Crabtree + Company View Media

Mitosis - anaphase

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A cell in anaphase during mitosis: Chromosomes separate into two genetically identical groups and move to opposite ends of the spindle. Judith Stoffer View Media

Arabidopsis leaf injected with a pathogen

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This is a magnified view of an Arabidopsis thaliana leaf eight days after being infected with the pathogen Hyaloperonospora arabidopsidis, which is closely related to crop pathogens that Jeff Dangl, University of North Carolina, Chapel Hill 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

Neurons from human ES cells

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These neural precursor cells were derived from human embryonic stem cells. The neural cell bodies are stained red, and the nuclei are blue. Xianmin Zeng lab, Buck Institute for Age Research, via CIRM View Media

Mouse cerebellum close-up

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The cerebellum is the brain's locomotion control center. Every time you shoot a basketball, tie your shoe or chop an onion, your cerebellum fires into action. National Center for Microscopy and Imaging Research (NCMIR) View Media

Alternative splicing (with labels)

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Arranging exons in different patterns, called alternative splicing, enables cells to make different proteins from a single gene. Featured in The New Genetics. Crabtree + Company View Media

Human embryonic stem cells on feeder cells

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The nuclei stained green highlight human embryonic stem cells grown under controlled conditions in a laboratory. Blue represents the DNA of surrounding, supportive feeder cells. Julie Baker lab, Stanford University School of Medicine, via CIRM View Media

Endoplasmic 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 Media

Sea urchin embryo 02

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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 Media

G switch (with labels)

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The G switch allows our bodies to respond rapidly to hormones. G proteins act like relay batons to pass messages from circulating hormones into cells. Crabtree + Company View Media

Microtubules and tau aggregates

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Microtubules (magenta) and tau protein (light blue) in a cell model of tauopathy. Melike Lakadamyali, Perelman School of Medicine at the University of Pennsylvania. View Media

Central dogma, illustrated (with labels and numbers for stages)

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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 Media

Yeast cells with nuclei and contractile rings

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Yeast cells with nuclei shown in green and contractile rings shown in magenta. Nuclei store DNA, and contractile rings help cells divide. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. View Media

Cell cycle (with labels)

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Cells progress through a cycle that consists of phases for growth (G1, S, and G2) and division (M). Cells become quiescent when they exit this cycle (G0). Crabtree + Company View Media

Borrelia burgdorferi

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Borrelia burgdorferi is a spirochete, a class of long, slender bacteria that typically take on a coiled shape. Infection with this bacterium causes Lyme disease. Tina Weatherby Carvalho, University of Hawaii at Manoa View Media

Beta2-adrenergic receptor protein

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Crystal structure of the beta2-adrenergic receptor protein. The Stevens Laboratory, The Scripps Research Institute View Media

Staphylococcus aureus in the porous coating of a femoral hip stem

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Staphylococcus aureus bacteria (blue) on the porous coating of a femoral hip stem used in hip replacement surgery. Paul Stoodley, The Ohio State University. View Media

Carbon building blocks (with examples)

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The arrangement of identical molecular components can make a dramatic difference. For example, carbon atoms can be arranged into dull graphite (left) or sparkly diamonds (right). Crabtree + Company View Media

High-throughput protein structure determination pipeline

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This slide shows the technologies that the Joint Center for Structural Genomics developed for going from gene to structure and how the technologies have been integrated into a high-throughput pipeline Joint Center for Structural Genomics View Media

Mitosis - interphase

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A cell in interphase, at the start of mitosis: Chromosomes duplicate, and the copies remain attached to each other. Judith Stoffer 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

Neural circuits in worms similar to those in humans

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Green and yellow fluorescence mark the processes and cell bodies of some C. elegans neurons. Shawn Xu, University of Michigan View Media

Nicotinic acid phosphoribosyltransferase

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Model of the enzyme nicotinic acid phosphoribosyltransferase. Berkeley Structural Genomics Center, PSI View Media

Motion in the brain

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Amid a network of blood vessels and star-shaped support cells, neurons in the brain signal each other. The mists of color show the flow of important molecules like glucose and oxygen. Kim Hager and Neal Prakash, University of California, Los Angeles View Media

Cells use bubble-like structures called vesicles to transport cargo

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Cells use bubble-like structures called vesicles (yellow) to import, transport, and export cargo and in cellular communication. A single cell may be filled with thousands of moving vesicles.
Tatyana Svitkina, University of Pennsylvania View Media

Wild-type and mutant fruit fly ovaries

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The two large, central, round shapes are ovaries from a typical fruit fly (Drosophila melanogaster). Vladimir I. Gelfand, Feinberg School of Medicine, Northwestern University. View Media

CRISPR Illustration Frame 2

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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. National Institute of General Medical Sciences. View Media

Sea urchin embryo 06

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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 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

Purkinje cells are one of the main cell types in the brain

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This image captures Purkinje cells (red), one of the main types of nerve cell found in the brain. Yinghua Ma and Timothy Vartanian, Cornell University, Ithaca, N.Y. View Media

Three neurons and human ES cells

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The three neurons (red) visible in this image were derived from human embryonic stem cells. Undifferentiated stem cells are green here. Anirvan Ghosh lab, University of California, San Diego, via CIRM View Media

Anchor cell in basement membrane

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An anchor cell (red) pushes through the basement membrane (green) that surrounds it. Elliott Hagedorn, Duke University. View Media

Recombinant DNA

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To splice a human gene into a plasmid, scientists take the plasmid out of an E. coli bacterium, cut the plasmid with a restriction enzyme, and splice in human DNA. Crabtree + Company 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

CRISPR Illustration

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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. National Institute of General Medical Sciences. View Media