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Kinetochore
Influenza Virus
Bacteriophage T4 Infection
JCVI-syn3A Minimal Cell
HIV-Infected Cell
Insulin Release
Caulobacter Polar Microdomain
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Casein Micelle and Fat Globule in Milk
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Model of a Mycoplasma Cell
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Myoglobin in a Whale Muscle Cell
Escherichia coli Bacterium
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Biosites: Cytoplasm
Biosites: Blood Plasma
Biosites: Nucleus
Biosites: Red Blood Cell
Biosites: Basement Membrane
Biosites: Muscle
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Escherichia coli

Molecular Landscapes by David S. Goodsell

Myoglobin in a Whale Muscle Cell, 2021


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Acknowledgement: Illustration by David S. Goodsell, RCSB Protein Data Bank. doi: 10.2210/rcsb_pdb/goodsell-gallery-032

Whale muscles contain many myoglobin molecules (red) to store oxygen during their deep dives. This cross section shows the space between two muscle sarcomeres, which are shown at right and left with actin thin filaments in yellow and myosin thick filaments in tan. The space also includes many glycolytic enzymes and other other enzymes involved in energy production (blue) and glycogen granules (purple). A tubule of the sarcoplasmic reticulum is shown at the bottom, with many calcium pumps (blue molecules in the membrane) and calcium storage proteins (green) that concentrate calcium inside, for use in control of muscle contraction. This painting was created as part of the celebration of the 50th anniversary of the Protein Data Bank.

Selected References

  • Gros G, Wittenberg BA & Jue T (2010) Myoglobin's old and new clothes: from molecular structure to function in living cells. J. Exp. Biol. 213, 2713-2725.
  • Maughan DW, Henkin JA & Vigoreaux JO (2005) Concentrations of glycolytic enzymes and other cytosolic proteins in the diffusible fraction of a vertebrate muscle proteome. Mol. Cell. Proteomics 4, 1541-1549.