Screening 500 unselected neurofibromatosis 1 patients for deletions of the NF1 gene
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Screening 500 unselected neurofibromatosis 1 patients for deletions of the NF1 gene. / Kluwe, Lan; Siebert, Reiner; Gesk, Stefan; Friedrich, Reinhard E; Tinschert, Sigrid; Kehrer-Sawatzki, Hildegard; Mautner, Victor-F.
In: HUM MUTAT, Vol. 23, No. 2, 01.02.2004, p. 111-6.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Screening 500 unselected neurofibromatosis 1 patients for deletions of the NF1 gene
AU - Kluwe, Lan
AU - Siebert, Reiner
AU - Gesk, Stefan
AU - Friedrich, Reinhard E
AU - Tinschert, Sigrid
AU - Kehrer-Sawatzki, Hildegard
AU - Mautner, Victor-F
N1 - Copyright 2004 Wiley-Liss, Inc.
PY - 2004/2/1
Y1 - 2004/2/1
N2 - A total of 500 unselected unrelated neurofibromatosis 1 (NF1) patients were screened for deletions of the NF1 gene. After excluding 67 patients with known intragenic NF1 mutations, the remaining 433 were genotyped using six intragenic and one distal microsatellite marker for the NF1 gene. A total of 28 patients were hemi- or homozygous for all seven markers and were thus considered as candidates for NF1 deletion with a calculated probability of 99.99%. Metaphase or interphase cells were available from 23 of these 28 individuals for molecular cytogenetics. Fluorescence in situ hybridization (FISH) confirmed an NF1 deletion in 22 (96%) of the 23 patients. Thus, a constitutional deletion of the NF1 gene is responsible for the disease phenotype in at least 4.4% of the 500 unselected NF1 patients. Genotyping using multiple microsatellite markers may provide a simple, inexpensive, and efficient strategy for screening deletions of the NF1 gene, and can as well be applied for other large genes.
AB - A total of 500 unselected unrelated neurofibromatosis 1 (NF1) patients were screened for deletions of the NF1 gene. After excluding 67 patients with known intragenic NF1 mutations, the remaining 433 were genotyped using six intragenic and one distal microsatellite marker for the NF1 gene. A total of 28 patients were hemi- or homozygous for all seven markers and were thus considered as candidates for NF1 deletion with a calculated probability of 99.99%. Metaphase or interphase cells were available from 23 of these 28 individuals for molecular cytogenetics. Fluorescence in situ hybridization (FISH) confirmed an NF1 deletion in 22 (96%) of the 23 patients. Thus, a constitutional deletion of the NF1 gene is responsible for the disease phenotype in at least 4.4% of the 500 unselected NF1 patients. Genotyping using multiple microsatellite markers may provide a simple, inexpensive, and efficient strategy for screening deletions of the NF1 gene, and can as well be applied for other large genes.
KW - Female
KW - Gene Deletion
KW - Genes, Neurofibromatosis 1
KW - Genetic Testing
KW - Humans
KW - Male
KW - Neurofibromatosis 1
KW - Neurofibromin 1
KW - Sex Distribution
U2 - 10.1002/humu.10299
DO - 10.1002/humu.10299
M3 - SCORING: Journal article
C2 - 14722914
VL - 23
SP - 111
EP - 116
JO - HUM MUTAT
JF - HUM MUTAT
SN - 1059-7794
IS - 2
ER -