CLONING AND EXPRESSION OF PROTEASE 2A FROM COXSAKIEVIRUS B3

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MAGHSOUDI N.; ZEYN ALDINI M.; HOSSEINI AMINI S.M.

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Journal Paper

Paper Information

Journal: Iranian Biomedical Journal Year:2005 | Volume:9 | Issue:4 Page(s): 149-153

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Information Journal Paper

Title

CLONING AND EXPRESSION OF PROTEASE 2A FROM COXSAKIEVIRUS B3

Author(s)

MAGHSOUDI N. | ZEYN ALDINI M. | HOSSEINI AMINI S.M. | Issue Writer Certificate

Keywords

PROTEASE 2A (2APRO)

CLONING

COXSACKIEVIRUS

Abstract

Protease 2A (2Apro) of COXSACKIEVIRUS B3 (CVB3) plays a major role in viral replication. In case of infection, viral proteins are being synthesized from viral mRNA using host biosynthesis machinery. 2Apro of virus, after being synthesized, exhibits two critical functions, cleavage of viral proteins and breaking eukaryotic initiation factor 4G. The enzyme plays an essential role in viral replication and cellular damage. To understand pathogenicity of infection and also developing potent and selective inhibitors against picornavirus infection, it is necessary to prepare pure 2Apro enzyme. cDNA of 2Apro was synthesized using in vitro infection of permissive host through reverse transcription process and was cloned in pET22b(+). Since 2Apro is a toxic product, its expression will act on host before induction and damages the cells. For this reason, different hosts were checked and finally BLR(DE3)pLysS, which carries an extra-plasmid for lysozyme expression, that minimizes unwanted target protein products (leakage) was selected. By employing such expression system we could minimize the unwanted expression of 2Apro. Though it is not possible to avoide it, but seems negligible. Hence, this system is useful for expression of toxic proteins in sensitive hosts in order to prevent bacterial damage. The product was confirmed by SDS polyacrylamide gel electrophoresis and immunoblot analysis.

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APA: Copy

MAGHSOUDI, N., ZEYN ALDINI, M., & HOSSEINI AMINI, S.M.. (2005). CLONING AND EXPRESSION OF PROTEASE 2A FROM COXSAKIEVIRUS B3. IRANIAN BIOMEDICAL JOURNAL, 9(4), 149-153. SID. https://sid.ir/paper/277096/en

Vancouver: Copy

MAGHSOUDI N., ZEYN ALDINI M., HOSSEINI AMINI S.M.. CLONING AND EXPRESSION OF PROTEASE 2A FROM COXSAKIEVIRUS B3. IRANIAN BIOMEDICAL JOURNAL[Internet]. 2005;9(4):149-153. Available from: https://sid.ir/paper/277096/en

IEEE: Copy

N. MAGHSOUDI, M. ZEYN ALDINI, and S.M. HOSSEINI AMINI, “CLONING AND EXPRESSION OF PROTEASE 2A FROM COXSAKIEVIRUS B3,” IRANIAN BIOMEDICAL JOURNAL, vol. 9, no. 4, pp. 149–153, 2005, [Online]. Available: https://sid.ir/paper/277096/en

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