MURINE INTERLEUKIN-2 RECEPTOR BETA-CHAIN - DYSREGULATED GENE-EXPRESSION IN LYMPHOMA LINE EL-4 CAUSED BY A PROMOTER INSERTION

被引:106
作者
KONO, T
DOI, T
YAMADA, G
HATAKEYAMA, M
MINAMOTO, S
TSUDO, M
MIYASAKA, M
MIYATA, T
TANIGUCHI, T
机构
[1] TOKYO METROPOLITAN INST MED SCI,BUNKYO KU,TOKYO 113,JAPAN
[2] KYUSHU UNIV,FAC SCI,DEPT BIOL,HIGASHI KU,FUKUOKA 812,JAPAN
关键词
D O I
10.1073/pnas.87.5.1806
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The functional, high-affinity interleukin 2 receptor (IL-2R) consists of at least two receptor components, IL-2Rα (p55) and IL-2Rβ (p70-75). The cDNA encoding the murine IL-2Rβ has been ed by using the previously cloned cDNA for human IL-2Rβ as a probe. Analysis of the cDNA revealed that the murine IL-2Rβ shows a marked homology with the human IL-2Rβ and that it is also structurally related to other cytokine receptors such as erythropoietin receptor. The cDNA-directed murine IL-2Rβ formed high-affinity IL-2R in conjunction with the endogenous IL-2Rα in a murine pro-B-cell line and could transduce IL-2-induced growth signal. In mouse lymphoma line EL-4, the IL-2Rβ gene was found to be rearranged by the insertion of the long terminal repeat sequence of an intracisternal A particle, giving rise to constitutive expression of the IL-2Rβ mRNA.
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页码:1806 / 1810
页数:5
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