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Related Experiment Video

Updated: Jun 29, 2026

A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells
07:09

A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells

Published on: July 31, 2012

A simple and efficient expression and purification system using two newly constructed vectors.

Huanting Liu1, James H Naismith

  • 1Centre for Biomolecular Science, BMS Building, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, Fife, Scotland, UK. lh9@st-andrews.ac.uk

Protein Expression and Purification
|October 11, 2008
PubMed
Summary
This summary is machine-generated.

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A new protein expression and purification system enhances protein production for structural biology. This adaptable system improves solubility screening and purification efficiency, yielding high-quality proteins for structure determination.

Area of Science:

  • Structural biology
  • Protein expression and purification

Background:

  • Structural biology requires high-quality and quantity protein production.
  • Existing protein expression and purification systems often lack efficiency, simplicity, and adaptability.

Purpose of the Study:

  • To develop an efficient, simple, and adaptable system for protein expression and purification.
  • To improve solubility screening and purification efficiency for structural biology applications.

Main Methods:

  • Development of two novel vectors, pEHISTEV and pEHISGFPTEV, derived from pET vectors.
  • Utilizing N-terminal hexahistidine tags (His-tags) for affinity purification.
  • Incorporating a green fluorescent protein (GFP) fusion for solubility assessment and a tobacco etch virus (TEV) protease cleavage site for tag removal.

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Last Updated: Jun 29, 2026

A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells
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A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells

Published on: July 31, 2012

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Published on: June 27, 2017

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12:16

High Throughput Quantitative Expression Screening and Purification Applied to Recombinant Disulfide-rich Venom Proteins Produced in E. coli

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Main Results:

  • The new system demonstrated improved protein expression, solubility screening, and purification efficiency.
  • Seven different genes were successfully tested, yielding sufficient protein quantity and quality for structure determination.
  • Optimization using GFP fluorescence and spectrophotometric analysis facilitated soluble protein quantification.

Conclusions:

  • The developed system is simple, effective, and broadly applicable for structural biology.
  • The system's adaptability allows for integration with other vectors, tags, or fusion proteins.