Identification of a new G-to-A transition mutation at nucleotide position 129 of the Xrcc4 gene in ionizing radiation-hypersensitive mutant LX830 cells.
Identification of a new G-to-A transition mutation at nucleotide position 129 of the Xrcc4 gene in ionizing radiation-hypersensitive mutant LX830 cells.
复制标题
在电离辐射超敏感突变体 LX830 细胞中 Xrcc4 基因的核苷酸位置 129 处鉴定出新的 G 到 A 过渡突变。
DOI:
10.1269/jrr.44.353
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发表时间:
2003
影响因子:
2
通讯作者:
Koki Sato
中科院分区:
文献类型:
--
作者:
H. Itsukaichi;M. Mori;Atsuko Nakamura;Koki Sato
The mouse lymphoma cell line LX830 is an X-ray-hypersensitive mutant. Complementation tests between LX830 cells and radiation-sensitive mutants of M10 (Xrcc4 deficient cells) or SX10 (DNA ligase IV deficient cells) cells showed that M10 cells did not complement LX830 cells, but SX10 cells did, suggesting that LX830 cells would belong to the X-ray-cross complementation group (XRCC4). A sequence analysis of Xrcc4 cDNA in LX830 cells disclosed a transition of G to A at nucleotide position 129, which resulted in a change of tryptophan (43) to a termination codon. Transfection of the mouse Xrcc4 cDNA rescued the X-ray sensitivity of the mutant cells. LX830 is an Xrcc4-deficient cell line bearing a termination codon in exon 2 of the Xrcc4 gene and no wild-type Xrcc4 gene.
影响因子:
56.9
作者:
TACCIOLI, GE;GOTTLIEB, TM;JEGGO, PA
通讯作者:
JEGGO, PA