Identification of the human YVH1 protein-tyrosine phosphatase orthologue reveals a novel zinc binding domain essential for in vivo function

被引:43
作者
Muda, M [1 ]
Manning, ER [1 ]
Orth, K [1 ]
Dixon, JE [1 ]
机构
[1] Univ Michigan, Sch Med, Dept Biol Chem, Ann Arbor, MI 48109 USA
关键词
D O I
10.1074/jbc.274.34.23991
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A human orthologue of the Saccharomyces cerevisiae YVH1 protein-tyrosine phosphatase is able to rescue the slow growth defect caused by the disruption of the S. cerevisiae YVH1 gene. The human YVH1 gene is located on chromosome 1q21-q22, which falls in a region amplified in human liposarcomas. The evolutionary conserved COOH-terminal noncatalytic domain of human YVH1 is essential for in vivo function. The cysteine-rich COOH-terminal domain is capable of coordinating 2 mol of zinc/mol of protein, defining it as a novel zinc finger domain. Human YVH1 is the first protein-tyrosine phosphatase that contains and is regulated by a zinc finger domain.
引用
收藏
页码:23991 / 23995
页数:5
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