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Related Concept Videos

Sulfur Assimilation01:20

Sulfur Assimilation

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Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
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Vitamins01:30

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Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced...
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Labeling DNA Probes03:31

Labeling DNA Probes

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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
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Role of Vitamins in Maintaining Bone Health01:25

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The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
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Related Experiment Video

Updated: Oct 18, 2025

In Vitro Biochemical Assays using Biotin Labels to Study Protein-Nucleic Acid Interactions
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In Vitro Biochemical Assays using Biotin Labels to Study Protein-Nucleic Acid Interactions

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Biotin.

Michael R Green, Joseph Sambrook

    Cold Spring Harbor Protocols
    |October 2, 2021
    PubMed
    Summary

    Biotin, a water-soluble vitamin, can be attached to proteins and nucleic acids without changing their properties. This study introduces its applications in molecular biology research.

    Area of Science:

    • Biochemistry
    • Molecular Biology

    Background:

    • Biotin is a vital nutrient and a water-soluble vitamin.
    • It possesses unique binding capabilities with avidin and streptavidin.

    Purpose of the Study:

    • To introduce the utility of biotinylation in molecular biology.
    • To highlight biotin's ability to be conjugated to biomolecules without functional alteration.

    Main Methods:

    • Review of existing literature on biotin conjugation techniques.
    • Discussion of biotin's chemical properties and conjugation strategies.

    Main Results:

    • Biotinylation is a versatile technique applicable to proteins and nucleic acids.
    • Conjugation is often achieved without compromising the target molecule's native properties.

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    Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration
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    In Vivo Proximity Biotinylation for Protein Interaction Studies in Paramecium tetraurelia
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    Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration
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    Conclusions:

    • Biotinylation offers a powerful tool for molecular biology applications.
    • Its stability and minimal impact on biomolecular function make it highly valuable.