Altered laminin 5 expression due to mutations in the gene encoding the beta 3 chain (LAMB3) in generalized atrophic benign epidermolysis bullosa.
Altered laminin 5 expression due to mutations in the gene encoding the beta 3 chain (LAMB3) in generalized atrophic benign epidermolysis bullosa.
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由于广泛性萎缩性良性大疱性表皮松解症中编码 β 3 链 (LAMB3) 的基因突变,导致层粘连蛋白 5 表达发生改变。
DOI:
10.1111/1523-1747.ep12605904
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发表时间:
1995
期刊:
影响因子:
--
通讯作者:
Uitto,J
中科院分区:
文献类型:
--
作者:
McGrath,JA;Pulkkinen,L;Christiano,AM;Leigh,IM;Eady,RA;Uitto,J
The anchoring filament component laminin 5 (kalinin/nicein) is a candidate protein for mutations in some hereditary blistering skin disorders. In this study, laminin 5 expression was assessed in a family with generalized atrophic benign epidermolysis bullosa, a non-lethal valiant of the junctional form of epidermolysis bullosa. Immunofluorescence microscopy of the skin basement-membrane zone with a monoclonal antibody (GB3) revealed reduced anti-laminin 5 staining compared to normal controls. The labeling, when examined by immunoelectron microscopy, was present within the lower lamina lucida, immediately below the plane of blister formation. Numerous hemidesmosomes and well-formed anchoring filaments were seen on transmission electron microscopy. Polymerase chain reaction amplification of genomic DNA encoding the β3 subunit (LAMB3) of laminin 5, heteroduplex analysis of the polymerase chain reaction products, and nucleotide sequencing of the heteroduplexes revealed two putative mutations within the LAMB3 gene; these consisted of a premature termination codon in exon 3 and a mis-sense mutation in exon 7. Exons 3 and 7 encode part of domain VI of the laminin 5 β3 chain short arm. This globular domain of the protein has been postulated to have an important function in the interaction of laminin 5 with other structural components of the basement membrane zone, such as laminin 6 (K-laminin). Thus the mutations delineated in this family may have a critical pathogenetic significance in reducing adhesion between the epidermis and the dermis.
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影响因子:
56.9
作者:
Ervin H. Epstein
通讯作者:
Ervin H. Epstein
影响因子:
6.5
作者:
P. Verrando;O. Schofield;A. Ishida‐Yamamoto;D. Aberdam;O. Partouche;R. Eady;J. Ortonne
通讯作者:
J. Ortonne
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
U. Schnyder;I. Anton
通讯作者:
I. Anton
DOI:
--
发表时间:
1989
期刊:
Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete
影响因子:
--
作者:
G. Grubauer;Helmut Hintner;Georg Klein;Peter O. Fritsch
通讯作者:
Peter O. Fritsch
DOI:
--
发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Gerecke,DR;Wagman,DW;Champliaud,MF;Burgeson,RE
通讯作者:
Burgeson,RE