Detection of an immunoglobulin switch region-specific DNA-binding protein in mitogen-stimulated mouse splenic B cells.

Detection of an immunoglobulin switch region-specific DNA-binding protein in mitogen-stimulated mouse splenic B cells.
复制标题

在有丝分裂原刺激的小鼠脾 B 细胞中检测免疫球蛋白开关区域特异性 DNA 结合蛋白。

DOI:
10.1128/mcb.10.4.1714-1718.1990
复制
发表时间:
1990
影响因子:
5.3
通讯作者:
Kenter,AL
Kenter,AL
中科院分区:
生物学2区
文献类型:
--
作者:
Wuerffel,RA;Nathan,AT;Kenter,AL

文献摘要

参考文献

相似文献

我们从脂多糖和葡聚糖硫酸盐刺激的小鼠脾B细胞中检测到一种核蛋白,它与免疫球蛋白开关μ(Sμ)序列特异结合。我们将该结合蛋白命名为核因子-Sμ。以含有8μ重复序列GAGCTGGGGTGAGCTGAGCTGAGCTGAGCT的DNA为探针,进行凝胶迁移率分析。甲基化干扰分析表明,结合中心位于4个鸟嘌呤残基的游程上。与突变的Sμ序列的竞争证实了G残基序列的重要性,并揭示了当G残基位于GAGCT的侧翼时,最佳结合发生。在脂多糖和硫酸葡聚糖处理的脾B细胞中,核因子-Sμ的表达动力学与诱导这些细胞中Sp的重组活性是平行的。在这些数据的基础上,我们认为核因子-Sμ可能是开关重组的效应因子。
We have detected a nuclear protein from lipopolysaccharide- and dextran sulfate-stimulated mouse splenic B cells which binds specifically to the immunoglobulin switch μ (Sμ) sequence. We have termed the binding protein NF-Sμ. DNA containing the 8μ repeated sequence, GAGCTGGGGTGAGCTGAGCTGAGCT, was used as a probe in electrophoretic mobility shift assays. Methylation interference analysis indicated that binding centers on the run of four guanine residues. Competitions with mutated Sμ sequences confirmed the importance of the run of G residues and revealed that optimal binding occurs when they are flanked by GAGCT. The kinetics of the expression of NF-Sμ in splenic B cells treated with lipopolysaccharide and dextran sulfate parallels the induction of recombinational activity at Sp in these cells. On the basis of these data, we suggest that NF-Sμ may be an effector of switch recombination.
DOI: 10.1073/pnas.82.23.7840
发表时间: 1985-01-01
影响因子: 11.1
作者:
LEATHERBARROW, RJ;FERSHT, AR;WINTER, G
通讯作者: WINTER, G
DOI: 10.1126/science.3306924
发表时间: 1987-09-25
期刊: SCIENCE
影响因子: 56.9
作者:
STARZYK, RM;WEBSTER, TA;SCHIMMEL, P
通讯作者: SCHIMMEL, P
大肠杆菌中丙氨酸 tRNA 合成酶的纯化和特性 相同亚基的四聚体。
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Putney,SD;Sauer,RT;Schimmel,PR
通讯作者: Schimmel,PR
DOI: 10.1021/bi00818a005
发表时间: 1970
期刊: Biochemistry
影响因子: 2.9
作者:
F. Cole;P. Schimmel
通讯作者: P. Schimmel
两种氨酰基-tRNA 合成酶氨基末端结构域的结构同源性。
DOI: --
发表时间: 1983
影响因子: 5.6
作者:
D. Blow;T. Bhat;A. Metcalfe;J. Risler;S. Brunie;C. Zelwer
通讯作者: C. Zelwer