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Related Concept Videos

Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Peroxisomes01:30

Peroxisomes

Peroxisomes and mitochondria are two important oxygen-utilizing organelles in eukaryotic cells. Mitochondria carry out cellular respiration—the process that converts energy from food into ATP. Peroxisomes carry out a variety of functions, primarily breaking down different substances, such as fatty acids.The peroxisome is a single membrane-bound cellular organelle that can perform several different functions, including lipid metabolism and chemical detoxification. The enzymes within peroxisomes...
Mitochondrial Membranes01:45

Mitochondrial Membranes

A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
Mitochondrial Membranes01:45

Mitochondrial Membranes

A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
The Inner Mitochondrial Membrane01:28

The Inner Mitochondrial Membrane

The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria.  In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...

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Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue
09:27

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Published on: March 23, 2015

Mitochondrion.

David S Goodsell1

  • 1Department of Molecular Biology, The Scripps Research Institute, La Jolla, California. goodsell@scripps.edu.

Biochemistry and Molecular Biology Education : a Bimonthly Publication of the International Union of Biochemistry and Molecular Biology
|May 14, 2011
PubMed
Summary
This summary is machine-generated.

A detailed illustration reveals the molecular basis of mitochondrial energy metabolism and apoptosis. Diverse biological data, including biochemistry and microscopy, informed this high-magnification cellular context image.

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Area of Science:

  • Cellular Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Illustrations are crucial for understanding complex cellular structures.
  • Mitochondria play vital roles in cellular energy production and programmed cell death (apoptosis).

Purpose of the Study:

  • To describe the scientific basis for a textbook illustration of a mitochondrion.
  • To reveal the molecular mechanisms of mitochondrial function through visualization.

Main Methods:

  • Integration of diverse biological data.
  • High-resolution imaging techniques, including electron microscopy.
  • Biochemical analysis and X-ray crystallography.

Main Results:

  • A highly magnified (1 million times) illustration of a mitochondrion was created.
  • The image depicts the precise location and form of mitochondrial membranes and macromolecules.
  • The molecular basis for energy metabolism and apoptosis is visually represented.

Conclusions:

  • Complex biological data can be synthesized into informative molecular illustrations.
  • Visualizing macromolecular structures provides insight into cellular functions like energy metabolism and apoptosis.