Home
Resources
Publications
[Expression and Purification of HIV-1 Subtype C Gp120, and Its Antibodies Preparation]

[Expression and Purification of HIV-1 Subtype C Gp120, and Its Antibodies Preparation]

Hai-ru Yang, Xia Feng, Shuang-qing Yu, Xiao-guang Zhang, Xiao-mei Zhang, Guo-min Chen, Ze-lin Li, Yi Zeng

Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi. 2009 Apr;23(2):94-6.

PMID: 20104745

Abstract:

Objective:
To prepare HIV-1 subtype C Gp120 protein and to produce its polyclonal antibodies.
Methods:
A C-terminal fragment of gp120 gene was amplified by PCR from a plasmid expressing full-length HIV-1 subtype C gp160 gene. The length of the subtype C gp120 fragment was 612 nt and it encodes 204 amino acid residues. The resulting DNA construct was cloned into a prokaryotic expression vector (pET-30a) and recombinant pET-30a-gp120 was expressed in Escherichia coli BL21 (DE3) as an insoluble protein. The vector also contained a six-histidine (His6) tag at the C-terminus for convenient purification. To produce subtype C Gp120-specific polyclonal antibodies, New-Zealand rabbit was immunized with the purified Gp120 protein. Serum samples were tested by enzyme-linked immunosorbent assays (ELISA) to determine the level of antibodies. And Western blotting was used to further verify whether the polyclonal antibodies could specifically recognize subtype C Gp160 protein expressed in mammalian cells.
Results:
HIV-1 subtype C Gp120 protein was successfully acquired and the titer of its polyclonal antibodies was 1:204 800. The polyclonal antibodies efficiently recognized Subtype C Gp160 protein expressed in COS-1 cells.
Conclusion:
HIV-1 subtype C Gp120 fusion protein with high purity was obtained and its corresponding polyclonal antibodies with high titer were produced.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR4246568	Anti-MO25 (C-terminus) antibody produced in rabbit			Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: