28_Select_all_reactions_with_Xrefs

rq turtle/ttl

Select all reactions with cross-references

Use at

• https://sparql.rhea-db.org/sparql/

PREFIX rh:<http://rdf.rhea-db.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT 
  DISTINCT ?reaction 
WHERE {
  ?reaction rdfs:subClassOf rh:Reaction .
  ?reaction rh:directionalReaction ?directionalReaction .
  ?reaction rh:bidirectionalReaction ?bidirectionalReaction .
  OPTIONAL { ?directionalReaction rdfs:seeAlso ?xref . }
  OPTIONAL { ?bidirectionalReaction rdfs:seeAlso ?xref . }
  FILTER (BOUND(?xref))
}
ORDER BY ?reaction