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  • Title: [Polypeptide content and HPLC-chromatography of the virions of phage ZF40 mutants].
    Author: Ostapchuk AN, Korol' NA, Romaniuk LV, Tovkach FI.
    Journal: Mikrobiol Z; 2011; 73(5):54-60. PubMed ID: 22164700.
    Abstract:
    Study of the polypeptide content of erwiniophage ZF40c(5/5) and ZF40-421 virulent mutants has shown that their virions include no less than 10 structural proteins with molecular weights ranging from 16.9 to 96.5 kDa. Three polypeptides belong to a group of major proteins with molecular weights 39.2, 33.1 and 18.5 kDa. They correlate with the polypeptides of phage head, tail sheath and tail core correspondingly. It has been proven that the protein contents of these phages are identical, taking into account that the percent ratio of all polypeptides approaches 1.0. The polypeptide profile of isogenic variant of phage ZF40-421 obtained on EccRC5297 is characterized by another ratio of major proteins. These differences are reflected in the structure of procapsids, that explains low level of stability and viability of the variant. The work shows for the first time the possibility of using HPLC-chromatography for studying native phage particles and their structural components.
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