A set of SPARQL examples that are used in different SIB resources
Proteins whose genes are on chromosome X and which do not have a ortholog in mouse
PREFIX : <http://nextprot.org/rdf/>
PREFIX db: <http://nextprot.org/rdf/db/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT DISTINCT ?entry WHERE {
?entry :gene / :chromosome "X"^^xsd:string .
filter not exists { ?entry :reference / :provenance db:MGI . }
}
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v1("?entry"):::projected
a2((" "))
a1((" "))
c6(["X"]):::literal
c3([":db/MGI"]):::iri
f0[["not "]]
subgraph f0e0["Exists Clause"]
e0v1 --":reference"--> e0a1
e0a1 --":provenance"--> e0c3
e0v1("?entry"):::projected
e0a1((" ")):::projected
e0c3([":db/MGI"]):::iri
end
f0--EXISTS--> f0e0
f0 --> v1
f0 --> c1
f0 --> a1
f0 --> c2
f0 --> c3
v1 --":reference"--> a1
a1 --":provenance"--> c3
v1 --":gene"--> a2
a2 --":chromosome"--> c6