Marseillevirus


Marseillevirus is a genus of viruses, in the family Marseilleviridae. There are two species in this genus. It is the prototype of a family of nucleocytoplasmic large DNA viruses of eukaryotes. It was isolated from amoeba.

Taxonomy

The genus contains the following species:
The virus is named after the French city of Marseille.

Structure

Viruses in Marseillevirus have icosahedral geometries. The diameter is around 250 nm. The genome has 457 open reading frames and is circular. The genome has a length of 368 kb, with a G+C content of 44.73%. It encodes a minimum of 49 proteins.
The genome of the virus includes typical NCLDV core genes and genes apparently obtained from eukaryotic hosts and their parasites or symbionts, both bacterial and viral, through probably horizontal [gene transfer] mechanism.
GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
MarseillevirusIcosahedralCircular

Life cycle

Viral replication is nucleo-cytoplasmic. DNA-templated transcription is the method of transcription. Amoeba serve as the natural host.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
MarseillevirusAmoeba-FusionLysisCytoplasmCytoplasmDiffusion in Water