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DNA sequence of the 5′ flanking region of the human interleukin 2 gene: homologies with adult T-cell leukemia virus

机译:人白细胞介素2基因的5'侧翼区域的DNA序列:成人T细胞白血病病毒的同源性

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We previously reported the sequence of the gene for human interleukin 2 (IL-2) which included about 220 b.p. of the 5′ flanking region. In this report we have extended the 5′ sequence to 1263 b.p. before the start site of transcription and have compared the entire sequence of the IL-2 gene and its 5′ flanking region with that of Adult T-cell leukemia virus (ATLV). Four regions of limited homology were noted. Three areas of homology to the viral long terminal repeat (LTR) were seen in the 5′ sequence flanking IL-2. A fourth region of homology to the viral LTR was located within the second intron of the IL-2 gene. While the significance of these homologies is not known, it is possible that they are involved in regulating the expression of ATLV and IL-2, both of which are generally restricted to T cells.
机译:我们之前报道了包括约220 B.P的人白细胞介素2(IL-2)的基因序列。在5'侧翼区域。在本报告中,我们将5'序列扩展到1263 B.P.在转录开始之前并将其与成人T细胞白血病病毒(ATLV)的整个IL-2基因及其5'侧翼区域进行了比较。注意到有限的同源性的区域。在5'序列侧翼IL-2中可以看到对病毒长末端重复(LTR)的三个同源性的。对病毒LTR的第四个同源性地位于IL-2基因的第二内含子内。虽然这些同源性的重要性尚不清楚,但它们可以参与调节ATLV和IL-2的表达,这两者通常限于T细胞。

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