Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2020 / Cilt: 20 - Sayı: 1

Recombinant Expression of Bordetella pertussis Putative Outer Protein D (BopD), Putative Outer Protein N (BopN), Leucin/Isoleucine/Valin Binding Protein (LivJ) and Type 2 Fimbria (Fim2)

Bordetella pertussis’e Ait Varsayımsal Dış Zar Proteini D (BopD), Varsayımsal Dış Zar Proteini N (BopN), Lösin/İzolösin/Valin Bağlanma Proteini (LivJ) ve Tip 2 Fimbriya (Fim2)’nin Rekombinant Olarak İfade Edilmesi

Pages
1–9
Publication Date
2022-10-12
DOI
—
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AI Summary & Key Takeaways

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

After detection the protective capacity of these proteins, it might be possible to use them in combinations or as fusions in vaccine development studies.

📌 3 Key Takeaways

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Objective & Hypothesis:Whooping cough (pertussis) is a contagious upper respiratory tract infection primary causative agent of which is gram-negative coccobacillus Bordetella pertussis.
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Key Findings & Data:In this study, selected immunogenic proteins, namely Leucin/Isoleucin/Valin binding protein (LivJ), Fimbria type 2 (Fim2) and members of Type 3 Secretion System (TTSS) Putative Outer Protein D (BopD) and Putative Outer Protein N (BopN) expressed recombinantly.
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Conclusion & Impact:After detection the protective capacity of these proteins, it might be possible to use them in combinations or as fusions in vaccine development studies.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Whooping cough (pertussis) is a contagious upper respiratory tract infection primary causative agent of which is gram-negative coccobacillus Bordetella pertussis. This disease, which may be fatal especially in infants, is characterized by repeated, violent coughing spasms caused by infection and may results in death. In this study, selected immunogenic proteins, namely Leucin/Isoleucin/Valin binding protein (LivJ), Fimbria type 2 (Fim2) and members of Type 3 Secretion System (TTSS) Putative Outer Protein D (BopD) and Putative Outer Protein N (BopN) expressed recombinantly. Genes of selected proteins were first cloned into pGEM®-T Easy vector and transformed to into E. coli DH5α cells, then cloned into the expression vector pET-28a(+) and transformed into E. coli BL21(DE3) cells to express the proteins. Expressed proteins were also purified by using His-tag columns. The molecular weights of the expressed BopD and Fim2 proteins were higher than expected on SDS-PAGE. Leakage was observed during BopD and BopN protein expression. Recombinant expression of these proteins, which take place in pathogenicity, is really important because of their potential as a vaccine candidate. After detection the protective capacity of these proteins, it might be possible to use them in combinations or as fusions in vaccine development studies.

Özet

Boğmaca, gram-negatif Bordetella pertussis bakterisinin etken olduğu, akut, oldukça bulaşıcı birsolunum yolu hastalığıdır. Şiddetli, kasılmalı ve uzun süreli öksürük boğmacanın en tipik belirtisidir. Ençok yeni doğanlarda görülen bu hastalığın bu yaş grubunda ölümle sonuçlanabildiği de bilinmektedir.Bu çalışmada, ileride aşı geliştirme araştırmalarında kullanılmak üzere, daha önce immünojenik olduğubilinen Lösin/İzolösin/Valin bağlanma proteini, Tip 2 fimbriya (Fim2) ve B. pertussis’in patojenitesindeönemli yer tutan Tip3 salgılama sisteminin (TTSS) elemanları olan varsayımsal dış zar proteini D (BopD)ve varsayımsal dış zar proteini N (BopN) rekombinant olarak eksprese edilmiştir. Proteinlere ait olan genbölgeleri ilk olarak bir klonlama vektörü olan pGEM®-T Easy vektörüne klonlanmış ve E. coli DH5αhücrelerine transforme edilmiş, ardından pET-28a(+) ekspresyon vektörüne atılarak E. coli BL21(DE3)’deekspresyonları yapılmıştır. Ekspresyonları yapılan proteinler His-tag kolonları kullanılaraksaflaştırılmıştır. SDS poliakrilamid jellerde BopD ve Fim2 proteinlerinin beklenenden daha yüksekmolekül ağırlığında bant verdiği görülmüştür. BopN ve BopD’nin ise indüklenmemiş örneklerde de kaçakprotein olarak ifade edildiği belirlenmiştir. Patojenitede önemli yer tutan bu proteinlerin rekombinantolarak ekspresyonları koruyuculuklarının belirlenebilmesi, söz konusu proteinleri içeren aşıkombinasyonlarının denenmesi ve yeni füzyon proteinlerinin oluşturulması gibi patojene karşı aşıgeliştirme çalışmalarında kullanılabilmelerini sağlaması açısından oldukça önem taşımaktadır.

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Cite This Article

ÖZTÜRK, B. E. T. (2022). Recombinant Expression of Bordetella pertussis Putative Outer Protein D (BopD), Putative Outer Protein N (BopN), Leucin/Isoleucine/Valin Binding Protein (LivJ) and Type 2 Fimbria (Fim2). Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 20 - Sayı: 1, 1–9. https://ajindex.com/articles/429745

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