Notes on Genus: Microvirus
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| icosahedra |
Type member: Enterobacteria phage fX174
Contents
| Members of this Genus General Description Morphology Electron Micrograph Genome Genus Genomic Organization Genome Map Type Member Genomic Organization All Known Sequences Curated Sequences |
General Description
This is one of the genera in the family Microviridae. Members infect delta-purple bacteria.Morphology
Virions isometric (icosahedral), not enveloped, 26-32 nm in diameter with small surface projections.Genome
Monopartite, positive sense, circular ssDNA 4.5-6 kb in length.Genus Genomic Organization
About 10 ORFs are translated from closely spaced or overlapping genes.Type Member Genomic Organization
There are 10 closely spaced or overlapping ORFs:| ORF | kDa | Function |
| A | 58.7 | Progeny ds replicative form synthesis; a shorter form A* (38.7 kDa) is translated from an alternative start codon |
| B | 13.8 | Procapsid morphogenesis |
| K | 6.4 | Unkown |
| C | 10.1 | Progeny ssDNA synthesis |
| D | 16.9 | Procapsid scaffold |
| E | 10.6 | Cell lysis |
| J | 4.2 | Packaging |
| F | 48.5 | Injection |
| G | 19.0 | Attachment |
| H | 34.4 | Spike protein |