Search for InterPro annotations filtering by InterPro id

Database: 
Documentation: 

El id se corresponde con el name en mySQL

Statement: 

SELECT ?x ?y
FROM
WHERE
{

?x ?y.
?y a .
?y ?z.
FILTER(REGEX(?z,"IPR026161"))

} LIMIT ??resultsLimit

Query: 
SELECT ?x ?z FROM <http://khaos.uma.es/olivedb> WHERE { ?x <http://khaos.uma.es/vocab/has_annotation> ?y. ?y a <http://khaos.uma.es/vocab/InterPro>. ?y <http://khaos.uma.es/vocab/interpro_id> ?z. FILTER(REGEX(?z,"IPR026161")) }