Mutation of the COG complex subunit gene COG7 causes a lethal congenital disorder
Mutation of the COG complex subunit gene COG7 causes a lethal congenital disorder
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DOI:
10.1038/nm1041
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发表时间:
2004-05-01
期刊:
影响因子:
82.9
通讯作者:
Freeze, HH
中科院分区:
文献类型:
--
作者:
Wu, XH;Steet, RA;Freeze, HH
The congenital disorders of glycosylation (CDG) are characterized by defects in N-linked glycan biosynthesis that result from mutations in genes encoding proteins directly involved in the glycosylation pathway. Here we describe two siblings with a fatal form of CDG caused by a mutation in the gene encoding COG-7, a subunit of the conserved oligomeric Golgi (COG) complex. The mutation impairs integrity of the COG complex and alters Golgi trafficking, resulting in disruption of multiple glycosylation pathways. These cases represent a new type of CDG in which the molecular defect lies in a protein that affects the trafficking and function of the glycosylation machinery.