PKL - Portal South

Preclinical laboratory (PKL) – Portal South and its import quarantine is a part of PKL at Karolinska University Hospital Huddinge. Since 1990, we offer researchers the opportunity to re-derivate and cryopreserve their mouse strains as well as providing worldwide import/export services.

This page in Swedish


Our objectives

  • Provide support to the researchers
  • Promote translational research for clinicians
  • Improve the collaboration between Karolinska Institutet and Karolinska University Hospital
  • Improve focus on the research environment


Our services

  • Cryopreseravtion and re-derivation
  • Embryo cleaning
  • Import of animals from all over the world and obtaining all required permissions
  • Access to high-technological equipment and specialized embryological services.


Your benefits

1. Cryopreservation

  • Limited genetic drift
  • Reduce cost for maintaining colonies
  • Preventing spontaneous loss of phenotype

2. Re-derivation

  • SPF mice (specific pathogen free)
  • Facilitating collaborations
  • Maintaining barriers

3. World-wide import/export

  • Your animals or frozen embryos/sperm are professionally and safely handled


See also



  • Email:
  • Telephone: 08-585 861 02