Three novel homozygous point mutations and a new polymorphism in the COL17A1 gene: relation to biological and clinical phenotypes of junctional epidermolysis bullosa.
Three novel homozygous point mutations and a new polymorphism in the COL17A1 gene: relation to biological and clinical phenotypes of junctional epidermolysis bullosa.
复制标题
COL17A1 基因中的三个新的纯合点突变和一个新的多态性:与交界性大疱性表皮松解症的生物学和临床表型的关系。
DOI:
10.1086/515463
复制
发表时间:
1997
影响因子:
9.8
通讯作者:
Bruckner-Tuderman,L
中科院分区:
文献类型:
--
作者:
Schumann,H;Hammami-Hauasli,N;Pulkkinen,L;Mauviel,A;Küster,W;Lüthi,U;Owaribe,K;Uitto,J;Bruckner-Tuderman,L
Junctional epidermolysis bullosa (JEB) is a clinically and biologically heterogeneous genodermatosis, characterized by trauma-induced blistering and healing without scarring but sometimes with skin atrophy. We investigated three unrelated patients with different JEB pheno-types. Patients 1 and 2 had generalized atrophic benign epidermolysis bullosa (GABEB), with features including skin atrophy and alopecia. Patient 3 had thelocalisatavariant of JEB, with predominantly acral blistering and normal hair. All patients carried novel homozygous point mutations (Q1016X, R1226X, and R1303Q) in the COL17A1 gene encoding collagen XVII, a hemides-mosomal transmembrane component; and, therefore, not only GABEB but also thelocalisataJEB can be a collagen XVII disorder. The nonsense mutations led to drastically reduced collagen XVII mRNA and protein levels. In contrast, the missense mutation allowed expression of abnormal collagen XVII, and epidermal extracts from that patient contained polypeptides of normal size, as well as larger aggregates. The homozygous nonsense mutations in the COL17A1 gene were consistent with the absence of the collagen from the skin and with the GABEB phenotype, whereas homozygosity for the missense mutation resulted in expression of aberrant collagen XVII and, clinically, inlocalisataJEB.
登录
查看更多内容
影响因子:
--
作者:
M. Jonkman;M. D. de Jong;K. Heeres;P. Steijlen;K. Owaribe;W. Küster;M. Meurer;T. Gedde;A. Sonnenberg;L. Bruckner
通讯作者:
L. Bruckner
影响因子:
6.5
作者:
GIUDICE, GJ;WILSKE, KC;DIAZ, LA
通讯作者:
DIAZ, LA
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
--
发表时间:
1996
期刊:
The American journal of pathology
影响因子:
--
作者:
McGrath,JA;Gatalica,B;Li,K;Dunnill,MG;McMillan,JR;Christiano,AM;Eady,RA;Uitto,J
通讯作者:
Uitto,J
影响因子:
4.6
作者:
L. Diaz;K. Wilske;Ann F. Taylor;D. Emery;G. Giudice
通讯作者:
G. Giudice