Table 1.
VRS Objects
| Object type | Identifier prefix | VRS release | Purpose |
|---|---|---|---|
| Variation | |||
| Allele | VA | v1.0 | contiguous insertions and deletions at a specific Location |
| Text | VT | v1.0 | other forms of variation (technical compatibility) |
| VariationSet | VS | v1.1 | collections of variation |
| Haplotype | VH | v1.1 | phased molecular variation |
| CopyNumber | VCN | v1.2 | an absolute systemic quantity/copy number variation |
| Gene Fusion | planned | concept for representing deregulated or novel transcripts resulting from gene fusion | |
| Gene Expression | planned | systemic variation concept for representing gene product abundance | |
| Genotype | planned | summary of variation corresponding to a Location | |
| Structural Variation | planned | novel molecules composed from sequence originating at non-contiguous locations | |
| Location | |||
| SequenceLocation | VSL | v1.0 | locations on defined IUPAC character sequences |
| ChromosomeLocation | VCL | v1.1 | locations on defined cytogenetic regions |
| SequenceExpression | |||
| LiteralSequenceExpression | N/A | v1.2 | used to define a specific sequence of literal IUPAC characters |
| DerivedSequenceExpression | N/A | v1.2 | used to define a sequence described by a sequence location |
| RepeatedSequenceExpression | N/A | v1.2 | used to define a specific sequence by a number of repeats of an indicated subsequence |
| Interval | |||
| CytobandInterval | N/A | v1.1 | a cytogenetic interval specified using cytoband nomenclature |
| SequenceInterval | N/A | v1.2 | an interval on a sequence specified by a start and end coordinate or coordinate range. |