Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2013 / Cilt: 19 - Sayı: 3

Cellulosimicrobium cellulans’dan β-1,3-glukanaz geninin Escherichia coli DH5α’da klonlanması ve ekspresyonu

Cloning and expression of β-1,3-glucanase gene from Cellulosimicrobium cellulans in Escherichia coli DH5α

Pages
523–528
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Based on the zymogram analysis, the intracellular produced recombinant β-1,3-glucanase enzymes exhibited the same activity bands with C. cellulans enzyme with respect to molecular weight.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, β-1,3-glucanase gene of Cellulosimicrobium cellulans was amplified by PCR and cloned in pUC18 cloning vector to construct the recombinant plasmids pTEG5 and pTEG11.
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Key Findings & Data:The recombinant plasmids pTEG5 and pTEG11 were transformed into competent Escherichia coli cells.
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Conclusion & Impact:Based on the zymogram analysis, the intracellular produced recombinant β-1,3-glucanase enzymes exhibited the same activity bands with C. cellulans enzyme with respect to molecular weight.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:plazmitler · DNA klonlama · Escherichia coli

Abstract

In this study, β-1,3-glucanase gene of Cellulosimicrobium cellulans was amplified by PCR and cloned in pUC18 cloning vector to construct the recombinant plasmids pTEG5 and pTEG11. The recombinant plasmids pTEG5 and pTEG11 were transformed into competent Escherichia coli cells. Digestion of recombinant plasmids with SacI produced 1.9 kbp β-1,3-glucanase gene band on agarose gel which indicated the gene integration. β-1,3-Glucanase gene amplification on the recombinant vectors also indicated 1.9 kbp gene insert. Recombinant enzyme was produced by E. coli intracellularly. Intracellular components of recombinant E. coli strains with pTEG5 or pTEG11 dropped on LB-laminarin-agar plate, showed clear positive zones by Congo-red staining revealing the activity of secreted protein. Based on the zymogram analysis, the intracellular produced recombinant β-1,3-glucanase enzymes exhibited the same activity bands with C. cellulans enzyme with respect to molecular weight.

Özet

Bu çalışmada Cellulosimicrobium cellulans bakterisine ait β-1,3-glukanaz geni PCR ile amplifiye edilerek pUC18 klonlama vektörüne klonlanmış, böylece pTEG5 ve pTEG11 rekombinant plazmit DNA’lar elde edilmiştir. Rekombinant plazmit DNA’lar pTEG5 ve pTEG11 kompetent Escherichia coli hücrelerine transfer edilmişlerdir. SacI enzimi ile kesilmiş rekombinant plazmitlerin agaroz jelde elektroforezi sonucu 1.9 kbç büyüklüğündeki β-1,3-glukanaz gen bandının görünmesi, gen entegrasyonunun tamam olduğunu göstermiştir. β-1,3-glukanaz geninin rekombinant vektörlerden amplifikasyonu da 1.9 kbç büyüklüğündeki geni göstermiştir. Rekombinant enzim E. coli tarafından hücre içi olarak üretilmiştir. LB-laminarin-agar plağına damlatılan rekombinant E. coli suşlarının intraselüler içerikleri Congo-red boyaması ile pozitif zonlar üretmiş, böylece rekombinant bakterilerce üretilen proteinin aktif olduğu anlaşılmıştır. Zimogram analizinde, hücre içi üretilen rekombinant β-1,3-glukanaz enzimleri C. cellulans enzimi ile aynı moleküler ağırlığa ait aktivite bantları sergilemişlerdir.

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Cite This Article

ÖZCAN, B. D., ÖZCAN, N., BAYLAN, M., GÜZEL, A. İ. (2013). Cellulosimicrobium cellulans’dan β-1,3-glukanaz geninin Escherichia coli DH5α’da klonlanması ve ekspresyonu. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 19 - Sayı: 3, 523–528. https://ajindex.com/articles/272937

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