CLONING AND EXPRESSION OF ONTAK IMMUNOTOXIN USING INTEIN TAG

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MOSAVEIZADEH SEYED ALI; ZEINODDINI MEHDI; SAEEDINIA ALI REZA; NASIRI KHALILI MOHAMMAD ALI

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Journal: Journal of Shahid Sadoughi University of Medical Sciences Year:2016 | Volume:24 | Issue:3 Page(s): 232-240

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Title

CLONING AND EXPRESSION OF ONTAK IMMUNOTOXIN USING INTEIN TAG

Author(s)

MOSAVEIZADEH SEYED ALI | ZEINODDINI MEHDI | SAEEDINIA ALI REZA | NASIRI KHALILI MOHAMMAD ALI | Issue Writer Certificate

Keywords

INTEINQ1

IMMUNOTOXINSQ1

CLONINGQ2

RECOMBINANT PROTEINSQ1

Abstract

Introduction: INTEINs (INT) are internal parts of a number of proteins in yeast and some other unicellular eukaryotes, which can be separated from the immature protein during protein splicing process. After identifying the mechanism of INTEIN action, applications of these sequences are be considered in the singlestep purification of RECOMBINANT PROTEINS and different INTEIN tags were developed. The most important advantage of using INTEIN tags in purification of RECOMBINANT PROTEINS than other affinity tags is no requirement of expensive protease enzymes and following additional steps to remove protease that make INTEIN tags economically are considered more important. In the present study, denileukin diftitox immunotoxin (brand name Ontak), be fused with an INTEIN tag and it was inserted in pTXB1 plasmid.Methods: In this study, with respect to multiple CLONING sites (MCS) of pTXB1, specific primers were designed. Polymerase Chain Reaction (PCR) was performed and encoding sequence of ONTAK was cloned using restriction sites of NdeI and SapI. Recombinant vector (PTX-IDZ) was transformed into E. coli strain ER2566 and expression of gene was studied.Results: The accuracy of recombinant construct was confirmed by PCR and enzymatic digestion. The produced RECOMBINANT PROTEINS were confirmed by SDS-PAGE and Western blotting.Conclusion: Restriction site of Sap I guarantees no additional residues incorporate in primary protein sequence. Also, the expression of this construct was analyzed in compare with fused protein to poly-His tag.According to the appropriate expression of fused protein in both constructs it was expected that one steppurification of considered drug protein will be success in the following steps.

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APA: Copy

MOSAVEIZADEH, SEYED ALI, ZEINODDINI, MEHDI, SAEEDINIA, ALI REZA, & NASIRI KHALILI, MOHAMMAD ALI. (2016). CLONING AND EXPRESSION OF ONTAK IMMUNOTOXIN USING INTEIN TAG. JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES, 24(3), 232-240. SID. https://sid.ir/paper/35918/en

Vancouver: Copy

MOSAVEIZADEH SEYED ALI, ZEINODDINI MEHDI, SAEEDINIA ALI REZA, NASIRI KHALILI MOHAMMAD ALI. CLONING AND EXPRESSION OF ONTAK IMMUNOTOXIN USING INTEIN TAG. JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2016;24(3):232-240. Available from: https://sid.ir/paper/35918/en

IEEE: Copy

SEYED ALI MOSAVEIZADEH, MEHDI ZEINODDINI, ALI REZA SAEEDINIA, and MOHAMMAD ALI NASIRI KHALILI, “CLONING AND EXPRESSION OF ONTAK IMMUNOTOXIN USING INTEIN TAG,” JOURNAL OF SHAHID SADOUGHI UNIVERSITY OF MEDICAL SCIENCES, vol. 24, no. 3, pp. 232–240, 2016, [Online]. Available: https://sid.ir/paper/35918/en

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