Expression, Purification, and Antiserum Production of the Truncated UL31 Protein of Herpes Simplex Virus 1

Document Type: Research Paper

Authors

1 Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Xinzao Town, Panyu, Guangzhou 511436, Guangdong, China

2 Guangzhou Medical University

3 GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Xinzao Town, Panyu, Guangzhou 511436, Guangdong, China

4 The Third Clinical School of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou 510150, Guangdong, China

5 School of Public Health, Guangzhou Medical University, Xinzao Town, Panyu, Guangzhou 511436, Guangdong, China

6 Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Second Affiliated Hospital of Guangzhou Medical University, No.250 Changgang Dong Road, Haizhu District, Guangzhou 510260, Guangdong, China

Abstract

Background: The UL31 protein of herpes simplex virus 1 (HSV-1) plays an important role in the HSV-1 replication, however, its pinpoint functions in the life cycle of the virus have yet to be adequately elucidated.
Objectives: An antiserum specific for detecting HSV-1 UL31 was prepared as the foundation for future research on the role of UL31 in the course of HSV-1 infection.
Materials and Methods: Recombinant protein of UL31 was expressed in Escherichia coli, which was then purified and employed to raise the level of antiserum in mice. Subsequently, western blot and immunofluorescence assay (IFA) were utilized to detect the specific antiserum.
Results: The recombinant UL31 protein consisting of N-terminal 27 aa of UL31 was fused to EYFP and His-tag. It was expressed, purified, and applied to the preparation of the antiserum. Western blot analysis and IFA demonstrated that this antiserum could detect both the recombinant UL31 and the native UL31.
Conclusions: Our results manifest that this antiserum could be conducive to further investigations concerning the roles of UL31 in the HSV-1 infection.

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