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	The Human SPT20-Containing SAGA Complex Plays a Direct Role in the Regulation of Endoplasmic Reticulum Stress-Induced Genes
	Nagy, Z. ; Riss, A. ; Romier, C. ; le Guezennec, X. ; Dongre, A. R. ; Orpinell, M. ; Han, J. H. ; Stunnenberg, H. ; Tora, L. ; Han JH(韩家淮)
	2009
关键词	UNFOLDED PROTEIN RESPONSE TATA-BINDING PROTEIN HISTONE ACETYLTRANSFERASE COMPLEXES TRANSCRIPTIONAL COACTIVATOR COMPLEX SACCHAROMYCES-CEREVISIAE ACTIVATED TRANSCRIPTION NUCLEOSOME ACETYLATION NF-Y TAF(II)-CONTAINING COMPLEX SIGNAL-TRANSDUCTION
英文摘要	One of the central questions in eukaryotic transcription is how activators can transmit their signal to stimulate gene expression in the context of chromatin. The multisubunit SAGA coactivator complex has both histone acetyltransferase and deubiquitination activities and remodels chromatin to allow transcription. Whether and how SAGA is able to regulate transcription at specific loci is poorly understood. Using mass spectrometry, immunoprecipitation, and Western blot analysis, we have identified human SPT20 (hSPT20) as the human homologue of the yeast Spt20 and show that hSPT20 is a bona fide subunit of the human SAGA (hSAGA; previously called TFTC/STAGA/PCAF) complex and that hSPT20 is required for the integrity of the hSAGA complex. We demonstrate that hSPT20 and other hSAGA subunits, together with RNA polymerase II, are specifically recruited to genes induced by endoplasmic reticulum (ER) stress. In good agreement with the recruitment of hSAGA to the ER stress-regulated genes, knockdown of hSTP20 hampers ER stress response. Surprisingly, hSPT20 recruitment was not observed for genes induced by another type of stress. These results provide evidence for a direct and specific role of the hSPT20-containing SAGA complex in transcriptional induction of ER stress-responsive genes. Thus, hSAGA regulates the transcription of stress-responsive genes in a stress type-dependent manner.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/65879]
专题	生命科学－已发表论文
推荐引用方式 GB/T 7714	Nagy, Z.,Riss, A.,Romier, C.,et al. The Human SPT20-Containing SAGA Complex Plays a Direct Role in the Regulation of Endoplasmic Reticulum Stress-Induced Genes[J],2009.
APA	Nagy, Z..,Riss, A..,Romier, C..,le Guezennec, X..,Dongre, A. R..,...&韩家淮.(2009).The Human SPT20-Containing SAGA Complex Plays a Direct Role in the Regulation of Endoplasmic Reticulum Stress-Induced Genes..
MLA	Nagy, Z.,et al."The Human SPT20-Containing SAGA Complex Plays a Direct Role in the Regulation of Endoplasmic Reticulum Stress-Induced Genes".(2009).

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