TRANSCRIPTIONAL REGULATION OF MURINE NADP+-DEPENDENT METHYLENETETRAHYDROFOLATE DEHYDROGENASE-CYCLOHYDROLASE-SYNTHETASE

被引:14
|
作者
PERI, KG [1 ]
MACKENZIE, RE [1 ]
机构
[1] MCGILL UNIV,DEPT BIOCHEM,3655 DRUMMOND ST,MONTREAL H3G 1Y6,QUEBEC,CANADA
关键词
FOLATE; NADP+-DEPENDENT METHYLENETETRAHYDROFOLATE DEHYDROGENASE; TRIFUNCTIONAL ENZYME; MULTIFUNCTIONAL ENZYME; IGF-1; POSTTRANSCRIPTIONAL REGULATION;
D O I
10.1016/0014-5793(91)81354-B
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
The cytosolic NADP+-dependent methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase-formyltetrahydrofolate synthetase is ubiquitously expressed in all mouse tissues and cell lines examined. Northern analyses of the RNA indicated that there is an extensive variation in the levels of mRNA in different tissues. However, the gene is refractory to induction by serum, phorbol esters or growth factors in cultured fibroblasts. The mRNA of the NADP+-dependent trifunctional enzyme is stabilized post-transcriptionally by insulin-like growth factor-1.
引用
收藏
页码:113 / 115
页数:3
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