共查询到20条相似文献，搜索用时 546 毫秒
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ＴＷＯＮＥＷＳＰＥＣＩＥＳＦＲＯＭＴＲＩＣＨＯＳＡＮＴＨＥＳ（ＣＵＣＵＲＢＩＴＡＣＥＡＥ）ＹｕｅｈＣｈｕｎ－ｈｓｉＨｕａｎｇＬｕ－ｑｉＣｈｅｎｇＣｈｉｎｇ－ｙｕｎｇ〔ＡＢＴＲＡＣＴ〕ＴｒｉｃｈｏｓａｎｔｈｅｓｒｅｆｅｒａｃｔａＹｕｅｈｅｔＬ．Ｑ．Ｈ... 相似文献
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新麦草的组织培养及染色体分析 总被引：4，自引：0，他引：4
新麦草的组织培养及染色体分析孙震晓,夏光敏,陈惠民（山东大学生物系．济南２５０１００）ＴＩＳＳＵＥＣＵＬＴＵＲＥＡＮＤＣＨＲＯＭＯＭＥＡＮＡＬＹＳＩＳＯＦＰｓＡＴＨＹＲＯＳＡＣＨＹＳＪＵＮＣＥＡ（ＦＩＳＣＨ．）ＮＥＶＳＫＩｓｕｎＺｈｅｎ－ｘｉａｏ;ｘ... 相似文献
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抗寒剂ＣＲ－４在克服我县水稻低温烂秧中的作用赵玉华（甘肃高台县农业局７３４３００）ＥＦＦＥＣＴＯＦＴＨＥＰＬＡＮＴＣＯＬＤ－ＲＥＳＩＳＴＥＲＯＮＯＶＥＲＣＯ－ＭＩＮＧＲＩＣＥＳＥＥＤＬＩＮＧＤＥＣＡＹＩＮＬＯＷＴＥＭＰＥＲＡＴＵＲＥＳＴＲＥＳＳＩＮＯ... 相似文献
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云南四药门花属—新种钱义咏（云南省思茅行署林业局，思茅６６５０００）ＡＮＥＷＳＰＥＣＩＥＳＯＦＴＥＴＲＡＴＨＹＲＩＵＭＦＲＯＭＹＵＮＮＡＮ￥ＱＩＡＮＹｉ－Ｙｏｎｇ（ＳｉｍａｏＡｄｉｍｉｎｉｓｔｒａｔｉｖｅＯｆｆｉｃｅＦｏｒｅｓｔｒｙＢｕｒｅａｕ，Ｙｕ... 相似文献
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中国革螨二新纪录种（蜱螨亚纲：厉螨科、巨螫螨科）ＴＷＯＮＥＷＬＹＲＥＣＯＲＤＥＤＳＰＥＣＩＥＳＯＦＧＡＭＡＳＩＮＡＦＲＯＭＣＨＩＮＡ（ＡＣＡＲＩ：ＬＡＥＬＡＰＩＤＡＥ,ＭＡＣＲＯＣＨＥＬＩＤＡＥ）￥ＹＥＲＵＩ－ＹＵ（ＸｉｎｊｉａｎｇＩｎｓｔｉｔｕｔｅ... 相似文献
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植物标本采集标签计算机印制数据系统陈涛,陈都,吴德邻（中国科学院华南植物研究所,广州５１０６５０）ＡＮＩＮＴＲＯＤＵＣＴＩＯＮＴＯＴＨＥＤＡＴＡＳＹＳＴＥＭＦＯＲＣＯＭＰＵＴＥＲ－ＡＩＤＥＤＬＡＢＥＬＰＲＥＰＡＲＡＴＩＯＮＯＦＳＰＥＣＩＭＥＮＣＯＬＬ... 相似文献
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Genome-wide in silico identification of new conserved and functional retinoic acid receptor response elements (direct repeats separated by 5 bp) 总被引：1，自引：0，他引：1
Lalevée S Anno YN Chatagnon A Samarut E Poch O Laudet V Benoit G Lecompte O Rochette-Egly C 《The Journal of biological chemistry》2011,286(38):33322-33334
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Hox gene expression is activated by all-trans retinoic acid (RA), through binding to retinoic acid receptor-retinoid X receptor (RAR-RXR) heterodimers bound at RA response elements (RAREs) of target genes. The RARs and RXRs each have three isotypes (alpha, beta, and gamma), which are encoded by distinct genes. Hox genes are also repressed by polycomb group proteins (PcG), though how these proteins are targeted is unclear. We used chromatin immunoprecipitation assays to investigate the association of RXRalpha, RARgamma, cofactors, and the PcG protein SUZ12 with the Hoxa1, RARbeta2, and Cyp26A1 RAREs in F9 embryonal carcinoma cells (teratocarcinoma stem cells) during RA treatment. We demonstrate that RARgamma and RXRalpha are associated with RAREs prior to and during RA treatment. pCIP, p300, and RNA polymerase II levels increased at target RAREs upon exposure to RA. Conversely, SUZ12 was found associated with all RAREs studied and these associations were attenuated by treatment with RA. Upon RA removal, SUZ12 re-associated with RAREs. H3ac, H3K4me2, and H3K27me3 marks were simultaneously detected at target loci, indicative of a bivalent domain chromatin structure. During RA mediated differentiation, H3K27me3 levels decreased at target RAREs whereas H3ac and H3K4me2 levels remained constant. These studies provide insight into the dynamics of association of co-regulators with RAREs and demonstrate a novel link between RA signaling and PcG repression. 相似文献
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The Q10 gene is a member of the major histocompatibility complex of the mouse that is expressed in the liver and kidney of the adult. Using transient expression assays, we found that the Q10 promoter was activated by retinoic acid (RA) and exogenous RARs and/or RXRs in a cell type-dependent manner. In addition, the basal activity of the Q10 promoter in HepG2 cells is lowered by expressing a dominant negative form of RARalpha. Incidentally, we have identified two cis-elements which consist of sequences related to retinoic acid response elements (RAREs) and a putative cAMP responsive element (CRE) the sequence of which overlaps one of the RAREs. RAR, RXR, CREB-ATF, and COUP-TF factors bind these elements and/or affect their activity. We also demonstrate that the CRE mediates part of the stimulation induced by activation of the cAMP pathway on the Q10 promoter, the residual activation being mediated by RARs. Our results suggest that Q10 expression in liver depends upon RA and the interaction between nuclear receptors that are expressed in this organ. The overlapping of the CRE with one of the RAREs together with the results of PKA activation also suggest that RA and cAMP signalling pathways are linked. 相似文献
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