We have constructed a database (DPVweb) that contains all sequences of viruses, viroids and satellites of plants, fungi and protozoa, that are complete or which encode one or more gene. The database also includes verified annotations for the open reading frames and other major features of each sequence. To assist comparisons with related viruses, there are also representative sequences for every completely sequenced animal virus with an RNA or ssDNA genome. Viruses are classified by their current name, and, as far as possible, nomenclature for genes and proteins are standardised within genera and families. The database is updated for new sequences regularly. Details of the current database are:
We now provide direct access to the sequence features (genes etc.) which can be selected and downloaded in FASTA format (nucleotide sequence and, where appropriate, the amino acid sequence). This can be done either by following the links to Curated Sequences from the Notes pages or by using the software described below.
We are developing software to use this database as a resource for the analysis of plant virus sequences, and this will be made freely available for non-commercial purposes through these web pages. The software must first be downloaded to the user's PC and is then used to query the database and extract the sequences of various features of virus genomes. Please read the disclaimer before downloading or using any of the software provided.
We currently provide software to analyse:
We hope to add other types of analysis (e.g. multiple comparisons, primer design, secondary structure predictions) and will welcome collaboration to help develop particular types of analysis.