The Prevalence of STIV c92-Like Proteins in Acidic Thermal Environments
| Autor: | Benjamin Bolduc, Mary M. Bateson, Mark J. Young, Jamie C. Snyder |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
0303 health sciences
Hot spring Lysis Phylogenetic tree Article Subject 030306 microbiology Viral protein viruses Cell Archaeal Viruses Biology medicine.disease_cause Virology Microbiology QR1-502 Cell membrane 03 medical and health sciences Infectious Diseases medicine.anatomical_structure Metagenomics medicine 030304 developmental biology Research Article |
| Zdroj: | Advances in Virology, Vol 2011 (2011) Advances in Virology |
| ISSN: | 1687-8647 1687-8639 |
| Popis: | A new type of viral-induced lysis system has recently been discovered for two unrelated archaeal viruses, STIV and SIRV2. Prior to the lysis of the infected host cell, unique pyramid-like lysis structures are formed on the cell surface by the protrusion of the underlying cell membrane through the overlying external S-layer. It is through these pyramid structures that assembled virions are released during lysis. The STIV viral protein c92 is responsible for the formation of these lysis structures. We searched for c92-like proteins in viral sequences present in multiple viral and cellular metagenomic libraries from Yellowstone National Park acidic hot spring environments. Phylogenetic analysis of these proteins demonstrates that, although c92-like proteins are detected in these environments, some are quite divergent and may represent new viral families. We hypothesize that this new viral lysis system is common within diverse archaeal viral populations found within acidic hot springs. |
| Databáze: | OpenAIRE |
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