@prefix ex:<https://purl.expasy.org/sparql-examples/neXtProt/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .
@prefix sh: <http://www.w3.org/ns/shacl#> .

ex:NXQ_00111 a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
    rdfs:comment "Proteins with one transmembrane domain and no annotated topology"@en ;
    sh:prefixes _:sparql_examples_prefixes ;
    sh:select """PREFIX : <http://nextprot.org/rdf/>

SELECT DISTINCT ?entry WHERE {
 ?entry :isoform ?iso.
 ?iso :swissprotDisplayed true .
 ?iso :topology ?tm.
 ?tm a :TransmembraneRegion.
 filter (not exists { ?iso :topology ?topodom.
 ?topodom a :TopologicalDomain.
 })
} group by ?entry having (count( ?tm)=1)""" ;
    schema:keywords "domain",
        "region",
        "topology",
        "transmembrane",
        "tutorial" ;
    schema:target <https://sparql.nextprot.org/sparql> .