Login ㆍ Sign up
Updated: 2018.4.13 22:17
HOME > NEWS > News > Highlights
Evidence that Viruses are Alive Found
[ Issue 141 Page 2 ] Monday, November 09, 2015, 07:34:40 Hyoyeon Kim Junior Staff Reporter hyoyokim@kaist.ac.kr

A new analysis from a research team at the University of Illinois provides further proof for the hypothesis that viruses are living entities. Until now, the classification of viruses has been a subject of confusion, and the consensus was that all viruses originated from an ancestral virus. The study focused on structural building blocks of proteins, called “folds,” that are found on all cells and viruses. Viral genomes are prone to rapid mutations, making it hard to find evolutionary relationships in them. Protein folds, on the other hand, can maintain their three-dimensional structures despite mutations and thus are better markers of evolutionary events. By comparing all of the known folds in organisms representing every branch of the tree of life to those in viruses, the researchers identified 442 folds shared between cells and viruses. The viruses were also found to have unique components not shared with cells, contradicting the old idea that all viral genetic materials are captured from cells. These data suggest that viruses originated from ancient cells and later evolved to gain their own parasitic characteristics. With these newfound evidence to support them, researchers argue that viruses should be given their own branch on the tree of life.

Hyoyeon Kim Junior Staff Reporter Archives  
Twitter Facebook Google
ⓒ KAIST Herald 2011 (http://herald.kaist.ac.kr)
All materials on this site are protected under the Korean Copyright Law and may not be reproduced, distributed, transmitted, displayed, published without the prior consent of KAIST Herald.

Total comments(0)  
      Enter the code!   
   * Readers can write comments up to 200 words (Current 0 byte/Max 400byte)

About Us | Privacy Policy | Rights and Permissions | Article Submission | RSS | Contact Us
The KAIST Herald, Undergraduate Library, KAIST, Daejeon, Republic of Korea
Publisher: Sung-Chul Shin | Managing Editor: Jeounghoon Kim | Editor: Sejoon Huh
Copyright 2011-2018 The KAIST Herald | All rights reserved | Mail to: kaistherald@gmail.com