TAXON-XREF

An xref to an organism taxonomy database, preferably NCBI taxon. This should be an instance of unificationXref, unless the organism is not in an existing database.

Source:http://www.biopax.org/release/biopax-level2.owl#TAXON-XREF

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
rdfs:comment
An xref to an organism taxonomy database, preferably NCBI taxon. This should be an instance of unificationXref, unless the organism is not in an existing database., An xref to an organism taxonomy database, preferably NCBI taxon. This should be an instance of unificationXref, unless the organism is not in an existing database., An xref to an organism taxonomy database, preferably NCBI taxon. This should be an instance of unificationXref, unless the organism is not in an existing database.
rdfs:range
rdfs:domain