The RDF Portal has changed name and URL due to a change of provider.

• Service name
  new ： RDF Portal
  old ： NBDC RDF Portal

• URL
  new ： https://rdfportal.org/
  old ： https://integbio.jp/rdf/

The RDF Portal is a portal site for life science databases in RDF format, and provides a comprehensive view of life science RDF format data created by research institutes in Japan, and allows users to search using the SPARQL language.