Recombinant Protein Purification using Composite Polyacrylamide-Nanocrystalline Cryogel Monolith Column and Carbohydrate- Binding Module Family ۶۴ as Affinity Tag

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 167

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شناسه ملی سند علمی:

JR_RBMB-11-2_008

تاریخ نمایه سازی: 21 مرداد 1401

چکیده مقاله:

Background: In the field of recombinant protein production, downstream processing, especially protein purification, is critical and often the most expensive step. Carbohydrate binding module ۶۴ (CBM۶۴) was shown in ۲۰۱۱ to bind efficiently to a broad range of cellulose materials. Methods: In this study, we developed a protein purification method using nanocrystalline cellulose embedded in a polyacrylamide monolith cryogel and CBM۶۴ affinity tag linked by intein to PD۱ as a model protein. The CBM۶۴-Intein-PD۱ gene cassette was expressed in E. coli. Following cell lysis, CBM۶۴-Intein-PD۱ protein bound to the monolith PA-NCC cryogel. After washing and reducing the pH from ۸.۰ to ۶.۵, the intein underwent self-cleavage, resulting in the release and elution of pure PD۱ protein. Results: The synthesized monolith column had a porous structure with an average pore size of ۳۰ μm and a maximum binding capacity of ۴۹۷ μg per gram of dried column. The yield of this purification method was ۸۴%, while the yield of the His tag-acquired CBM۶۴-Intein-PD۱ method was ۸۹%. Conclusions: We used cellulose as support for affinity chromatography, which can be used as a cost-effective method for protein purification.

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نویسندگان

Mohsen Danaeifar

Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Ziba Veisi Malekshahi

Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Fatemeh Kazemi-Lomedasht

Department of Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.

Mohammad Ali Mazlomi

Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.

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