Bitki Patojeni Virüslerde Proteaz Tipleri ve Fonksiyonları

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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