The use of biotin tagging in Saccharomyces cerevisiae improves the sensitivity of chromatin immunoprecipitation.
The use of biotin tagging in Saccharomyces cerevisiae improves the sensitivity of chromatin immunoprecipitation.
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在酿酒酵母中使用生物素标签可提高染色质免疫沉淀的灵敏度。
DOI:
10.1093/nar/gkl003
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发表时间:
2006-02-25
影响因子:
14.9
通讯作者:
Timmers HT
中科院分区:
文献类型:
--
作者:
van Werven FJ;Timmers HT
Affinity tagging has been used in many global studies towards protein function. We describe a highly efficient system for in vivo biotinylation of transcription factors in the yeast Saccharomyces cerevisiae, which is based on the bacterial BirA biotin ligase. The strength of the biotin–streptavidin interaction was exploited to improve detection of in vivo protein–DNA complexes in chromatin immunoprecipitation (ChIP) experiments. In a test system using the biotin-tagged LexA DNA-binding protein, we found that stringent washing conditions resulted in a strong improvement of the signal-to-noise ratios. Yeast strains with chromosomally integrated versions of tagged transcription factor genes were generated using N- or C-terminal biotin-tagging cassettes. ChIP experiments with biotinylated Rbp3p, a RNA polymerase II subunit, showed that Rbp3p-binding could even be detected at weakly expressed genes. Other methods failed to detect RNA polymerase II binding at such genes. Our results show that biotinylation of yeast transcription factors improves the detection of in vivo protein–DNA complexes.
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影响因子:
3.5
作者:
Roeder, RG
通讯作者:
Roeder, RG
影响因子:
15
作者:
Lue, RYP;Chen, GYJ;Yao, SQ
通讯作者:
Yao, SQ
DOI:
10.1073/pnas.1332608100
发表时间:
2003-06-24
影响因子:
11.1
作者:
de Boer, E;Rodriguez, P;Strouboulis, J
通讯作者:
Strouboulis, J
影响因子:
16
作者:
Geisberg, JV;Struhl, K
通讯作者:
Struhl, K
影响因子:
2.6
作者:
GIETZ, RD;SCHIESTL, RH;WOODS, RA
通讯作者:
WOODS, RA