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Protein Complementation Approach for Quantitative and Qualitative Analysis of hTERP in Cell.

M A Shamonova1, M S Koriagina1,2, V L Shliapina2

  • 1Faculty of Chemistry, Moscow State University, Moscow, Russia.

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Summary

Researchers assessed human telomerase reverse transcriptase (hTERP) protein levels using a novel protein complementation assay. This method offers a more precise alternative to Western blotting for quantifying protein content in cells.

Keywords:
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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Accurate protein quantification is essential for understanding cellular functions.
  • Western blotting, a common method, has limitations including antibody specificity and semi-quantitative nature.
  • There is a need for precise methods to determine intracellular protein levels.

Purpose of the Study:

  • To develop and apply a protein complementation assay for qualitative and quantitative assessment of human telomerase reverse transcriptase (hTERP) protein.
  • To overcome the limitations of traditional methods like Western blotting for protein analysis.
  • To determine the hTERP protein content in the HEK293T cell line.

Main Methods:

  • Utilized a protein complementation assay for protein quantification.
  • Introduced a HiBiT epitope to the C-terminus of the hTERP protein via genome editing.
  • Restored active luciferase by complementing HiBiT-tagged hTERP with LgBiT.

Main Results:

  • Successfully implemented a protein complementation method for hTERP analysis.
  • Enabled both qualitative and quantitative assessment of hTERP protein levels.
  • Determined the hTERP protein content within the HEK293T cell line.

Conclusions:

  • Protein complementation assay provides a robust method for hTERP quantification.
  • This technique offers an alternative to Western blotting with improved precision.
  • The study successfully quantified hTERP levels in HEK293T cells, validating the assay.