query: SELECT ?gene ?protein WHERE {
    ?gene wdt:P688 ?protein .
    ?gene wdt:P351 ?entrez .
    ?protein wdt:P352 ?uni .
    ?gene wdt:P703 ?gt .
    ?protein wdt:P703 ?pt .
    FILTER (?gt = ?pt)
    FILTER NOT EXISTS {
      ?protein wdt:P702 ?gene .
    }
  }
  