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Kinetochore
Influenza Virus
Bacteriophage T4 Infection
HIV-Infected Cell
Caulobacter Polar Microdomain
HIV Vaccine
Insulin Release
JCVI-syn3A Minimal Cell
Casein Micelle and Fat Globule in Milk
Escherichia coli Bacterium
Cellulose Synthase
Myoglobin in a Whale Muscle Cell
Collagen and Extracellular Matrix
CytoSkeleton
Transfer RNA and Gag Protein
RecA and DNA
Model of a Mycoplasma Cell
Phage-based COVID-19 Vaccine
SARS-CoV-2 and Neutralizing Antibodies
Red Blood Cell Cytoskeleton
SARS-CoV-2 mRNA Vaccine
SARS-CoV-2 Fusion
Respiratory Droplet
Coronavirus Life Cycle
Myelin
Immunological Synapse
Coronavirus
Influenza Vaccine
Poliovirus Neutralization
Lipid Droplets
Measles Virus Proteins
Last Universal Common Ancestor
Abiogenesis
Excitatory and Inhibitory Synapses
Insulin Action
Zika Virus
Ebola Virus
Chloroplast
Autophagy
Mycoplasma mycoides
Vascular Endothelial Growth Factor (VegF) Signaling
Biosites: Cytoplasm
Biosites: Basement Membrane
Biosites: Red Blood Cell
Biosites: Blood Plasma
Biosites: Muscle
Biosites: Nucleus
Blood
HIV in Blood Plasma
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.