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Updated: Jul 6, 2026

Indirect Immunofluorescence on Frozen Sections of Mouse Mammary Gland
11:13

Indirect Immunofluorescence on Frozen Sections of Mouse Mammary Gland

Published on: December 1, 2015

哺乳动物线粒体核糖体的结构揭示了其组成蛋白质的扩大功能作用

Manjuli R Sharma1, Emine C Koc, Partha P Datta

  • 1Division of Molecular Medicine, Wadsworth Center, New York State Department of Health, Empire State Plaza, Albany, NY 12201, USA.

Cell
|October 9, 2003
PubMed
概括

线粒体核糖体对于ATP产生至关重要,与它们的原生细胞对应物有很大的不同. 我们的冷EM地图揭示了哺乳动物线粒体核糖体中独特的蛋白质结构和新的机制.

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Protein Organization01:13

Protein Organization

Overview
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Antibody Structure

Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
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Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
Antibody Structure01:10

Antibody Structure

Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
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Insulin Secretory Vesicles

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Protein Organization

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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