Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Assignment of the gene for dyskeratosis congenita to Xq28
AU - Connor, J. M.
AU - Gatherer, D.
AU - Gray, F. C.
AU - Pirrit, L. A.
AU - Affara, N. A.
PY - 1986/4
Y1 - 1986/4
N2 - Dyskeratosis congenita is an X-linked recessive disorder with diagnostic dermatological features, bone marrow hypofunction, and a predisposition to neoplasia in early adult life. Linkage analysis was undertaken in an extensive family with the condition using the Xg blood group and 17 cloned X chromosomal DNA sequences which recognise restriction fragment length polymorphisms (RFLPs). No recombination was observed between the locus for dyskeratosis congenita (DKC) and the RFLPs identified by DXS52 (St14-1) (Zmax = 3.33 at theta max = 0 with 95% confidence limits of 0 to 14cM). Similarly no recombination was observed for the disease locus and F8 (Zmax = 1.23 at theta max = 0) nor for DXS15 (Zmax = 1.62 at theta max = 0), but both of these markers were only informative in part of the family whereas DXS52 was fully informative. DXS52, DXS15, and F8 are known to be tightly linked and have previously been assigned to Xq28. Thus the gene for dyskeratosis congenita can be assigned to Xq28. These DNA sequence polymorphisms will be of clinical value for carrier detection and prenatal diagnosis.
AB - Dyskeratosis congenita is an X-linked recessive disorder with diagnostic dermatological features, bone marrow hypofunction, and a predisposition to neoplasia in early adult life. Linkage analysis was undertaken in an extensive family with the condition using the Xg blood group and 17 cloned X chromosomal DNA sequences which recognise restriction fragment length polymorphisms (RFLPs). No recombination was observed between the locus for dyskeratosis congenita (DKC) and the RFLPs identified by DXS52 (St14-1) (Zmax = 3.33 at theta max = 0 with 95% confidence limits of 0 to 14cM). Similarly no recombination was observed for the disease locus and F8 (Zmax = 1.23 at theta max = 0) nor for DXS15 (Zmax = 1.62 at theta max = 0), but both of these markers were only informative in part of the family whereas DXS52 was fully informative. DXS52, DXS15, and F8 are known to be tightly linked and have previously been assigned to Xq28. Thus the gene for dyskeratosis congenita can be assigned to Xq28. These DNA sequence polymorphisms will be of clinical value for carrier detection and prenatal diagnosis.
KW - Adolescent
KW - Adult
KW - Child
KW - Chromosome Mapping
KW - DNA Restriction Enzymes
KW - Female
KW - Genes, Recessive
KW - Genetic Linkage
KW - Genetic Markers
KW - Humans
KW - Male
KW - Middle Aged
KW - Pedigree
KW - Pigmentation Disorders
KW - Skin Diseases
KW - X Chromosome
U2 - 10.1007/BF00290963
DO - 10.1007/BF00290963
M3 - Journal article
C2 - 3009302
VL - 72
SP - 348
EP - 351
JO - Human Genetics
JF - Human Genetics
SN - 0340-6717
IS - 4
ER -