Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Preparation of monoPEGylated human interferon beta-1a: Optimization of the conditions for N-terminal PEGylation

Preparation of monoPEGylated human interferon beta-1a: Optimization of the conditions for... The recombinant human interferon (IFN) beta-1a was modified with polyethylene glycol (PEG). The reaction was performed with the use of activated linear butyraldehyde PEG derivative with a molecular weight of 30 kDa. As a result of the multifactorial experiment, the correlation between the reaction conditions and the yield of the monoPEGylated protein was demonstrated and the optimal PEGylation conditions were established. We developed a one-step chromatographic purification scheme that makes it possible to obtain monoPEG-IFN beta-1a conjugate a purity above 98%. Mass-spectrometric studies showed that the purified conjugate is the PEGylated IFN beta-1a, in which the N-terminal methionine is bound with a PEG molecule. The molecular weight of the conjugate is 54130 Da. The obtained PEG-IFN beta-1a has a specific antiviral activity; it can be considered as a promising candidate in the design of prolonged-release medicine for the treatment of multiple sclerosis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Biochemistry and Microbiology Springer Journals

Preparation of monoPEGylated human interferon beta-1a: Optimization of the conditions for N-terminal PEGylation

Loading next page...
 
/lp/springer-journals/preparation-of-monopegylated-human-interferon-beta-1a-optimization-of-5lPHwltL8u

References (21)

Publisher
Springer Journals
Copyright
Copyright © 2015 by Pleiades Publishing, Inc.
Subject
Life Sciences; Biochemistry, general; Microbiology; Medical Microbiology
ISSN
0003-6838
eISSN
1608-3024
DOI
10.1134/S0003683815070030
Publisher site
See Article on Publisher Site

Abstract

The recombinant human interferon (IFN) beta-1a was modified with polyethylene glycol (PEG). The reaction was performed with the use of activated linear butyraldehyde PEG derivative with a molecular weight of 30 kDa. As a result of the multifactorial experiment, the correlation between the reaction conditions and the yield of the monoPEGylated protein was demonstrated and the optimal PEGylation conditions were established. We developed a one-step chromatographic purification scheme that makes it possible to obtain monoPEG-IFN beta-1a conjugate a purity above 98%. Mass-spectrometric studies showed that the purified conjugate is the PEGylated IFN beta-1a, in which the N-terminal methionine is bound with a PEG molecule. The molecular weight of the conjugate is 54130 Da. The obtained PEG-IFN beta-1a has a specific antiviral activity; it can be considered as a promising candidate in the design of prolonged-release medicine for the treatment of multiple sclerosis.

Journal

Applied Biochemistry and MicrobiologySpringer Journals

Published: Oct 23, 2015

There are no references for this article.