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Updated: May 6, 2026

Overexpression and Purification of Human Cis-prenyltransferase in Escherichia coli

Overexpression and Purification of Human Cis-prenyltransferase in Escherichia coli

Published on: August 3, 2017

C1 inhibitor: quantification and purification.

Lilian Varga¹, József Dobó

¹3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary.

Methods in Molecular Biology (Clifton, N.J.)

|November 13, 2013

Summary

This summary is machine-generated.

Measuring C1 inhibitor levels is crucial for diagnosing and monitoring hereditary angioedema (HAE). This study details a radial immunodiffusion method for determining antigenic C1 inhibitor levels.

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Area of Science:

Biochemistry
Immunology
Hematology

Background:

C1 inhibitor is a serpin regulating complement, fibrinolytic, and coagulation systems.
Deficiency in C1 inhibitor causes hereditary angioedema (HAE), an autosomal dominant disorder.

Purpose of the Study:

To describe a method for determining antigenic C1 inhibitor levels.
To provide a technique for HAE diagnosis and therapy monitoring.

Main Methods:

Purification of plasma C1 inhibitor utilizing its carbohydrate content and jacalin lectin affinity.
Determination of antigenic C1 inhibitor level using radial immunodiffusion (RID).

Main Results:

A detailed protocol for C1 inhibitor purification is presented.
The RID technique allows for the quantification of antigenic C1 inhibitor.

Conclusions:

Accurate measurement of C1 inhibitor is essential for HAE management.
The described purification and measurement methods are vital for clinical applications.