Notes on Genus: Ourmiavirus

bacilliform

Type member: Ourmia melon virus

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

The genus Ourmiavirus is named from the type member, first described from Ourmia (in Iran). Members of the genus have distinctive bullet shaped particles of several lengths with sharply triangular ends.

Morphology

Bullet-shaped particles, 18.5 nm in mean width, parallel-sided, and of several discrete lengths, 30 nm and 37 nm being the shortest and commonest lengths. Both ends of all particles are sharply triangular in profile.

Genome

Linear single-stranded positive sense RNA of three sizes, approximately 2.8, 1.0 and 0.97 kb.

Genus Genomic Organization

Each segment has a single ORF. RNA1 encodes a putative RNA dependent RNA polymerase (96-98 kDa), RNA2 encodes a putative movement protein (31-32 kDa) and RNA3 encodes the single coat protein (21-24 kDa).

Type Member Genomic Organization

• RNA1 encodes the polymerase (97.5 kDa)
• RNA2 encodes a putative movement protein (31.6 kDa)
• RNA3 encodes the single coat protein (23.8 kDa)