| name | description |
| BoxCore | BOX core types and elements |
| BoxChemical | types and elements representing chemical compounds and reactions |
| BoxChemicalKb | root element representing a KB of chemical compounds and reactions |
| BoxExtChemicalKb | extension of BoxChemicalKb with additional external chemical references |
| BoxKeggKb | extension of BoxExtChemicalKb for representing KEGG entries (sample) |
| BoxOrganism | types and elements for representing organisms and taxonomies |
| BoxOrganismKb | root element for representing a KB of organisms |
| BoxPathway | types and elements for representing biochemical pathways |
| BoxPathwayKb | types and elements for representing biochemical pathways |
| BoxReplicon | types and elements representing replicons (e.g. chromosomes) |
| BoxLocation | types and elements representing sequence feature locations |
| BoxFeature | types and elements representing sequence features |
| BoxSequence | types and elements representing sequence data |
| BoxBioSequence | types and elements representing biosequences (i.e. sequence data + related biological information) |
| BoxBioSequenceKb | types and elements representing a KB of biosequences (i.e. sequence data + related biological information + features) |