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Baltimore Classification

Higher order taxa

Viruses; ssDNA viruses; Inoviridae


Inovirus, Plectovirus

Description and Significance

Inoviridae viruses are non-enveloped bacteriophages that infect E. coli by a slow-release life cycle.

Genome Structure

The genome of Inoviridae is not segmented and contains a molecule of circular, positive-sense, single-stranded DNA. The complete genome is 4400-8500 nucleotides long. (source: ICTV dB Descriptions)

Virion Structure of an Inoviridae

The virions of Inoviridae consist of a capsid that is not enveloped. The capsid is elongated and exhibits icosahedral symmetry. The capsid is rod-shaped, straight to flexuous with a length of 85-280 nm or 760-1950 nm, and a width of 10-16 nm or 6-8 nm. Frequently morphologically aberrant forms have also been observed and they are of abnormal length.

Reproduction Cycle of an Inoviridae in a Host Cell

Viral Ecology & Pathology