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Related Concept Videos

Tagging and Fusion Proteins01:24

Tagging and Fusion Proteins

Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Covalently Linked Protein Regulators

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Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
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Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues

Published on: November 22, 2014

Site specific protein labeling by enzymatic posttranslational modification.

Murat Sunbul1, Jun Yin

  • 1Department of Chemistry, The University of Chicago, 929 East 57th Street, GCIS E505, IL 60637, USA.

Organic & Biomolecular Chemistry
|August 14, 2009
PubMed
Summary

Site specific protein labeling uses artificial modifications to reveal protein functions, locations, and interactions. Enzymatic tools mimic natural posttranslational modifications for efficient and precise protein labeling with diverse chemical probes.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Chemical Biology

Background:

  • Site-specific protein labeling is crucial for understanding protein functions at a molecular level.
  • It aids in determining protein localization, interaction networks, and dynamic biological processes like synthesis, transport, and degradation.
  • This technique involves artificial modification of proteins with novel chemical entities post-translationally.

Purpose of the Study:

  • To survey protein labeling methods that utilize enzymatic tools.
  • To highlight the analogy between protein labeling and natural protein posttranslational modifications.
  • To showcase the development of enzymatic tools for efficient and site-specific protein labeling.

Main Methods:

  • Leveraging the analogy between protein labeling and posttranslational modification.
  • Developing and applying enzymatic tools for protein modification.
  • Utilizing diverse chemical probes for labeling target proteins.

Main Results:

  • Enzymatic tools enable site-specific and efficient labeling of proteins.
  • A variety of chemical probes with different structures and functionalities can be used.
  • These methods provide insights into protein localization, interactions, and dynamics.

Conclusions:

  • Enzymatic approaches offer powerful strategies for site-specific protein labeling.
  • This technique is essential for dissecting complex biological systems and protein functions.
  • The development of enzymatic tools expands the capabilities for chemical biology research.