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

ex:216_human_proteins_by_existence_evidence a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
    rdfs:comment "Break down reviewed human proteins by their protein-existence evidence level (up:existence): how many are 'very well characterized' with direct evidence at the protein level, as opposed to only evidence at the transcript level, inferred from homology, predicted, or uncertain"@en ;
    sh:prefixes _:sparql_examples_prefixes ;
    sh:select """PREFIX up: <http://purl.uniprot.org/core/>
PREFIX taxon: <http://purl.uniprot.org/taxonomy/>

SELECT
  ?existence
  (COUNT(*) AS ?proteinCount)
WHERE {
  ?protein a up:Protein ;
    up:organism taxon:9606 ;
    up:reviewed true ;
    up:existence ?existence .
}
GROUP BY ?existence
ORDER BY DESC(?proteinCount)""" ;
    schema:keywords "protein existence" , "evidence" , "characterization" ;
    schema:target <https://sparql.uniprot.org/sparql/> .