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Iridoviridae virions, depending on the genus, either have a membrane derived envelope or no envelope. There are four genera: Iridovirus, Chloriridovirus, Ranavirus and Lymphocryptovirus. Virions contain one molecule of linear double stranded DNA. Total genome is 150000-280000 nt. Each virion contains a single copy of genome to multiple copies of genome; sometimes 2 copies packed per particle.Additional information can also be found at ICTVdB Descriptions.
Iridoviruses and the VBRC
The VBRC provides comprehensive web-based genomics resources to the scientific community through:
- Providing up-to-date genomic and proteomic data from the virus families.
- see Organisms menu for a list of virus families supported
- Providing easy-to-use software tools to perform a variety of bioinformatics analyses.
- see Tools menu for a list of software tools
- we also build software to tackle specific bioinformatics/virology problems, often in collaboration with virologists.
- Offering researchers help on specific bioinformatics problems.
You can find the VBRC’s mandate here and more information on the home page.
Analysis tools at the VBRC
We provide highly interactive software tools that enable users to view and analyze viral genomes. These tools can be accessed directly from the “Iridoviridae Tools” drop-down menu on the top left of this page. These tools include:
- Viral Orthologous Clusters (VOCs) allows users to easily search the Iridoviridae database for protein sequences or genes of a known function or of a specific genome and then apply different analysis techniques to the search result. VOCs provides quick and easy access to tools like BLAST, multiple alignment, dotplots, and genome statistics.
- Viral Genome Organizer (VGO) allows users to browse genomes, viewing genes, ORFs, start/stop codons, nucleic acid composition, and orthologs when working with multiple genomes.
To start work: Check the Quick Start Tutorials (well worth 5 minutes) or just dive in by selecting a tool from the menu. Our usual starting place is the VOCs, which allows you to select data for use with the analysis tools.
The VBRC provides an Iridovirus Information Book that includes:
- An up-to-date collection of published research reviews.
- The manually curated VBRC KnowledgeBase (detailed experimental evidence about the biology of the viral genes and proteins).
- Links to other Iridovirus internet resources for general and background information.