Bitki Patojeni Virüslerde Proteaz Tipleri ve Fonksiyonları

Year 2018, Volume: 44 Issue: 2, 175 - 186, 11.10.2018

Şerife Topkaya , Filiz Ertunç

Abstract

Bitkileri hastalandıran çok sayıda bitki patojeni virüs
bulunmaktadır.  Bitki patojeni
virüsler  konukçu hücreleri içerisine
girdikten sonra, hayatlarını devam ettirmek ve konukçu içinde çoğalmak için
örtü proteinlerinden ayrılırlar. Çoğalma işlemini gerçekleştirmek için
yapılarında bulunan enzimleri kullanarak yeni virüsler kopyalarlar. Bu
enzimleri proteazlar ve nükleik asit
sentezinden sorumlu enzimler (replikasyon enzimleri) oluşturur. Virüslerin
genom ifadeleri esnasında proteazlar önemli fonksiyona sahiptir. Bu enzimler
genomu fonksiyonel proteinlere işlenmesinde ilk basamağı oluştururlar. Bu
derlemede bitki patojeni virüslerin yapıları ve fonksiyonlarından
bahsedilmiştir. 

Keywords

Bitki virüsleri, Protezlar, Viral proteinler

Protease Types and Functions of Plant Pathogenic Viruses

Abstract

There are numerous virus that infect the plants. After the
plant viruses  penetrated in to the host
plant cells, they  uncoat from coat
protein for surviving and genome expression. Then viruses use the enzymes for
replication and genome expression. The important enzymes for genome expression
are proteases and replication enzymes. The proteases have important role for
replication. In the review, structure of plant pathogenic viruses and functions
are discussed. 

Keywords

Plant viruses, Proteases, Viral proteins

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