Whole-exome sequencing in a single proband reveals a mutation in the CHST8 gene in autosomal recessive peeling skin syndrome.
Whole-exome sequencing in a single proband reveals a mutation in the CHST8 gene in autosomal recessive peeling skin syndrome.
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DOI:
10.1016/j.ygeno.2012.01.005
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发表时间:
2012-04
期刊:
影响因子:
4.4
通讯作者:
Christiano, Angela M.
中科院分区:
文献类型:
--
作者:
Cabral, Rita M.;Kurban, Mazen;Wajid, Muhammad;Shimomura, Yutaka;Petukhova, Lynn;Christiano, Angela M.
Generalized peeling skin syndrome (PSS) is an autosomal recessive genodermatosis characterized by lifelong, continuous shedding of the upper epidermis. Using whole-genome homozygozity mapping and whole-exome sequencing, we identified a novel homozygous missense mutation (c.229C>T, R77W) within the CHST8 gene, in a large consanguineous family with non-inflammatory PSS type A. CHST8 encodes a Golgi transmembrane N-acetylgalactosamine-4-O-sulfotransferase (GalNAc4-ST1), which we show by immunofluorescence staining to be expressed throughout normal epidermis. A colorimetric assay for total sulfated glycosaminoglycan (GAG) quantification, comparing human keratinocytes (CCD1106 KERTr) expressing wild type and mutant recombinant GalNAc4-ST1, revealed decreased levels of total sulfated GAGs in cells expressing mutant GalNAc4-ST1, suggesting loss of function. Western blotting revealed lower expression levels of mutant recombinant GalNAc4-ST1 compared to wild type, suggesting that accelerated degradation may result in loss of function, leading to PSS type A. This is the first report describing a mutation as the cause of PSS type A.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.032068299
发表时间:
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DOI:
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期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
LAMBERG, SI;YUSPA, SH;HASCALL, VC
通讯作者:
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