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Analyzing and Building Nucleic Acid Structures with 3DNA
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氧化蛋白折叠的生化基础 在内质网膜中的氧化蛋白折叠

B P Tu1, S C Ho-Schleyer, K J Travers

  • 1Howard Hughes Medical Institute, Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143, USA.

Science (New York, N.Y.)
|November 25, 2000
PubMed
概括

这项研究揭示了内质网膜 (ER) 如何发生氧化折叠. 蛋白质二硫化异构酶 (PDI) 和ERO1,使用黄氨酸二核酸 (FAD),有效地运送氧化等价物,以快速形成二硫化键.

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
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Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.