Potassium ion channel beta subunit
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Potassium ion channel beta subunit
Potassium ion channel beta subunit. Molecular model showing the structure a beta subunit of a voltage-dependent potassium (K+) channel. Ion channels are membrane-spanning proteins that form a pathway for the movement of inorganic ions across cell membranes. Beta subunits, which help modify K+ channel gating, form a four-fold symmetric structure. The subunits here enclose the central channel. Each subunit is an oxidoreductase enzyme complete with a nicotinamide co-factor in its active site. This example is modelled on the beta subunit in a potassium ion channel from a brown rat (Rattus norvegicus)
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Media ID 9273375
© LAGUNA DESIGN/SCIENCE PHOTO LIBRARY
Beta Subunit Biomolecule Brown Rat Cell Membrane Cellular Cytological Cytology Graphic Ion Channel Macromolecule Molecular Biology Potassium Ion Channel Proteins Proteomics Rattus Norvegicus Structural Transmembrane Voltage Dependent Biochemical Biochemistry Cutouts Microbiological Molecular Model Molecular Structure Protein
EDITORS COMMENTS
This print showcases the intricate structure of a potassium ion channel beta subunit. The molecular model reveals the four-fold symmetric arrangement of these subunits, which play a crucial role in modifying the gating mechanism of voltage-dependent potassium channels. As membrane-spanning proteins, ion channels create pathways for inorganic ions to traverse cell membranes. Set against a striking black background, this illustration highlights the biological and biochemical aspects of this protein complex. Each beta subunit is depicted as an oxidoreductase enzyme with a nicotinamide co-factor nestled within its active site. This particular model is based on the beta subunit found in a brown rat's potassium ion channel (Rattus norvegicus). The image not only captures the structural beauty of this macromolecule but also emphasizes its significance in cellular function and molecular biology. With its precise cutouts and detailed artwork, it offers insights into transmembrane processes and biomolecular interactions. This print from Science Photo Library serves as both an informative tool for researchers delving into proteomics and biochemistry and an aesthetic piece that celebrates the wonders of nature at a microscopic level. It reminds us that even seemingly small components like ion channels can have profound impacts on cellular activities, making them essential subjects for scientific exploration.
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