Genetic linkage to the type VII collagen gene (COL7A1) in 26 families with generalised recessive dystrophic epidermolysis bullosa and anchoring fibril abnormalities.
Genetic linkage to the type VII collagen gene (COL7A1) in 26 families with generalised recessive dystrophic epidermolysis bullosa and anchoring fibril abnormalities.
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26 个患有广泛性隐性营养不良性大疱性表皮松解症和锚定原纤维异常的家族中与 VII 型胶原蛋白基因 (COL7A1) 的遗传连锁。
作者:
M. Dunnill;A. Richards;G. Milana;F. Mollica;D. Atherton;I. Winship;M. Farrall;L. Al;R. Eady;F. Pope
To strengthen the evidence for genetic linkage to COL7A1, we have studied 26 generalised recessive dystrophic epidermolysis bullosa (EB) families of British, Italian, Irish, and South African origin. We chose two linkage markers, a COL7A1 PvuII intragenic polymorphism and a highly informative anonymous microsatellite marker, D3S1100, which maps close to the COL7A1 locus at 3p21.1-3. Diagnosis was established by family history, clinical examination, immunofluorescence, and ultrastructural studies. The PvuII marker was informative in 16 families with a maximum lod score (Zmax) of 3.51 at recombination fraction (theta) = 0. The D3S1100 microsatellite was informative in 24 out of 25 families with Zmax = 6.8 at theta = 0.05 (Z = 4.94 at theta = 0) and no obligatory recombination events. These data strongly suggest that COL7A1 mutations cause EB in these families and, combined with previous studies, indicate locus homogeneity. The importance of anchoring fibrils for dermal-epidermal adhesion is further underlined. D3S1100 may later prove useful in prenatal diagnosis of this disease, if used in combination with other markers.
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DOI:
10.1172/jci110577
发表时间:
1982
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Stricklin,GP;Welgus,HG;Bauer,EA
通讯作者:
Bauer,EA
DOI:
10.1172/jci115680
发表时间:
1992
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Ryynanen,M;Ryynanen,J;Sollberg,S;Iozzo,RV;Knowlton,RG;Uitto,J
通讯作者:
Uitto,J
DOI:
10.1111/1523-1747.ep12658066
发表时间:
1992
期刊:
The Journal of investigative dermatology
影响因子:
--
作者:
Gruis,NA;Bavinck,JN;Steijlen,PM;vanderSchroeff,JG;vanHaeringen,A;Happle,R;Mariman,E;vanBeersum,SE;Uitto,J;Vermeer,BJ
通讯作者:
Vermeer,BJ
影响因子:
3.5
作者:
Christiano,AM;Rosenbaum,LM;Chung-Honet,LC;Parente,MG;Woodley,DT;Pan,TC;Zhang,RZ;Chu,ML;Burgeson,RE;Uitto,J
通讯作者:
Uitto,J
影响因子:
9.8
作者:
Ryynänen,M;Knowlton,RG;Parente,MG;Chung,LC;Chu,ML;Uitto,J
通讯作者:
Uitto,J