''Bcepmuvirus'' is a genus of
virus
A virus is a submicroscopic infectious agent that replicates only inside the living Cell (biology), cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are ...
es in the class ''
Caudoviricetes
''Caudoviricetes'' is a class of viruses known as tailed viruses and head-tail viruses (''cauda'' is Latin for "tail"). It is the sole representative of its own phylum, ''Uroviricota'' (from ''ouros'' (ουρος), a Greek word for "tailed" + ...
'', not assigned to a subfamily.
Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are two species in this genus.
Taxonomy
The following two species are assigned to the genus:
* ''
Burkholderia virus BcepMu''
* ''
Burkholderia virus phiE255''
Structure
Bcepmuviruses are
nonenveloped
A viral envelope is the outermost layer of many types of viruses. It protects the genetic material in their life cycle when traveling between host cells. Not all viruses have envelopes. A viral envelope protein or E protein is a protein in the env ...
, with a head and tail. The head has an elongated icosahedral symmetry (T=13, Q=21).
Genome
Both species have been fully sequenced and are available from ICTV. They range between 36k and 38k nucleotides, with 53 to 55 proteins. The complete genomes are available fro
here
Life cycle
The virus attaches to the host cell using its terminal fibers, and ejects the viral DNA into the host cytoplasm via contraction of its tail sheath. Once the viral genes have been replicated, the procapsid is assembled and packed. The tail is then assembled and the mature virions are released via lysis.
History
According to the
ICTV's 2010–11 report, the genus ''Bcepmuvirus'' was first accepted as a new genus, at the same time as both of its contained species. This proposal is availabl
here
References
{{Use dmy dates, date=April 2017
Myoviridae
Virus genera