False-positive results using a Gaucher diagnostic kit--RecTL and N370S.
The Pronto Gaucher kits and Pronto Gaucher RecTL Amplification Mix, marketed to identify mutations in the gene for glucocerebrosidase, are widely used for the diagnosis of Gaucher disease. Subjects genotyped using this kit have been reported with an allele including both the common N370S mutation and RecTL, a previously described Gaucher mutation arising from recombination between the glucocerebrosidase gene and pseudogene. Using direct sequencing and real-time PCR, we show that the RecTL, N370S allele is a false positive result, demonstrating possible pitfalls of diagnostic kits.
Choi
Jae Hyuk
JH
Section on Molecular Neurogenetics, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892-3708, USA.
Velayati
Arash
A
Stubblefield
Barbara K
BK
Orr-Urtreger
Avi
A
Gan-Or
Ziv
Z
Tayebi
Nahid
N
Sidransky
Ellen
E
D005189:False Positive Reactions; D005776:Gaucher Disease / Q000175:diagnosis*; D005962:Glucosylceramidase / Q000235:genetics*; D006801:Humans; D011933:Reagent Kits, Diagnostic
D011933:Reagent Kits, Diagnostic; D005962:Glucosylceramidase