Lysosomal Enzymes

Purpose: Lysosomal enzymes, testing of reproducibility and ability to detect
enzyme deficiencies in LSD's.
Scientific Expert: Marie Jackson, e-mail:
Scheme Organiser: Dr. C. Weykamp e-mail:
Analytes: 2019 Scheme: alpha-galactosidase, beta-Galactosidase, alpha-glucosidase, beta-Glucosidase, iduronate sulphatase, galactosylceramidase, arylsulphatase A, lysosomal acid lipase (acid esterase), palmitoyl protein thioesterase (PPT1), tripeptidyl peptidase I (TPPI),
Number of Specimens/Year: 6 lyophilised specimens for standard scheme.
Matrix of the Specimens: Lyophilised fibroblasts
Volume/Specimen: 0.5 mg lyophilised protein/standard specimen.
Number of Shipments/Year: One shipment of 6 specimens in February
Submission of Results: Via ERNDIM Interactive Website, 2 times/year, May and September
Reports: Requested from ERNDIM Interactive Website.
Certificate: Once a year issued by ERNDIM board
Number of Participants: 73 (2018)
Status of the Scheme: Pilot phase started in 2006 initiated by the ESGLD.
Regular ERNDIM scheme since 2010
Geographic Area: Worldwide
Limitation Participation: None.
Cost/Year: 607 EURO (2019)
How to subscribe: Dr. Sara Gardner, e-mail:
Annual report: Click here for the annual reports