CLONING OF THE GALACTOKINASE CDNA AND IDENTIFICATION OF MUTATIONS IN 2 FAMILIES WITH CATARACTS

被引:77
作者
STAMBOLIAN, D
AI, YJ
SIDJANIN, D
NESBURN, K
SATHE, G
ROSENBERG, M
BERGSMA, DJ
机构
[1] UNIV PENN,SCH MED,DEPT GENET,PHILADELPHIA,PA 19104
[2] SMITH KLINE BEECHAM PHARMACEUT,DEPT MOLEC GENET,KING OF PRUSSIA,PA 19046
关键词
D O I
10.1038/ng0795-307
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Galactokinase is an essential enzyme for the metabolism of galactose and its deficiency causes congenital cataracts during infancy and presenile cataracts in the adult population. We have cloned the human galactokinase cDNA, which maps to chromosome 17q24, and show that the isolated cDNA expresses galactokinase activity in bacteria and mammalian cells. We also describe two different mutations in this gene in unrelated families with galactokinase deficiency and cataracts. The availability of the cloned galactokinase gene provides an important reference to identify mutations in patients with galactokinase deficiency and cataracts.
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页码:307 / 312
页数:6
相关论文
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