| 24小時(shí)熱門(mén)版塊排行榜 |
| 5 | 1/1 | 返回列表 |
| 查看: 1242 | 回復(fù): 4 | ||||
biomill8358無(wú)蟲(chóng) (小有名氣)
|
[交流]
【分享】連接miRNA到胚胎干細(xì)胞的核心轉(zhuǎn)錄調(diào)控環(huán) 已有4人參與
|
|
Connecting microRNA Genes to the Core Transcriptional Regulatory Circuitry of Embryonic Stem Cells 連接miRNA到胚胎干細(xì)胞的核心轉(zhuǎn)錄調(diào)控環(huán) AlexanderMarson,StuartS.Levine, MeganF.Cole, GarrettM.Frampton, TobiasBrambrink, SarahJohnstone, MatthewG.Guenther, WendyK.Johnston, MariusWernig, JamieNewman 摘要:miRNA在的自我更新和分化中起著重要作用,然而調(diào)控的及調(diào)控機(jī)理并不明確。本文構(gòu)建了的轉(zhuǎn)錄調(diào)控環(huán),包括編碼基因和;诟咄康臄(shù)據(jù),系統(tǒng)地識(shí)別的啟動(dòng)子,并且定量測(cè)序多個(gè)細(xì)胞類型中的短轉(zhuǎn)錄本,發(fā)現(xiàn)細(xì)胞中關(guān)鍵的調(diào)控子與細(xì)胞中表達(dá)的的啟動(dòng)子相關(guān),并且與靶基因的啟動(dòng)子相關(guān)。細(xì)胞中,這一組沉默的靶基因與蛋白共發(fā)生,并在不用的分化細(xì)胞中顯示組織特異性表達(dá)。這些數(shù)據(jù)揭示了關(guān)鍵細(xì)胞中促進(jìn)細(xì)胞表達(dá)過(guò)程的機(jī)理,并將這些整合到細(xì)胞的調(diào)控環(huán)中。 MicroRNAs (miRNAs) are crucial for normal embryonic stem (ES) cell self-renewal and cellular differentiation, but how miRNA gene expression is controlled by the key transcriptional regulators of ES cells has not been established. We describe here the transcriptional regulatory circuitry of ES cells that incorporates protein-coding and miRNA genes based on high-resolution ChIP-seq data, systematic identification of miRNA promoters, and quantitative sequencing of short transcripts in multiple cell types. We find that the key ES cell transcription factors are associated with promoters for miRNAs that are preferentially expressed in ES cells and with promoters for a set of silent miRNA genes. This silent set of miRNA genes is co-occupied by Polycomb group proteins in ES cells and shows tissue-specific expression in differentiated cells. These data reveal how key ES cell transcription factors promote the ES cell miRNA expression program and integrate miRNAs into the regulatory circuitry controlling ES cell identity. 更多資料請(qǐng)查看www.bioknow.cn |
新手上路指南 |
木蟲(chóng) (著名寫(xiě)手)

榮譽(yù)版主 (文壇精英)
我的醬油捏~~

|
|
| 5 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 301求調(diào)劑 +6 | yy要上岸呀 2026-03-17 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 311求調(diào)劑 +9 | 冬十三 2026-03-15 | 10/500 |
|
|
[考研] 考研求調(diào)劑 +3 | 橘頌. 2026-03-17 | 4/200 |
|
|
[考研] 308求調(diào)劑 +4 | 是Lupa啊 2026-03-16 | 4/200 |
|
|
[考研] 312求調(diào)劑 +4 | 陌宸希 2026-03-16 | 5/250 |
|
|
[考研] 278求調(diào)劑 +3 | Yy7400 2026-03-13 | 3/150 |
|
|
[考研] 機(jī)械專碩325,尋找調(diào)劑院校 +3 | y9999 2026-03-15 | 5/250 |
|
|
[考研] 0703化學(xué)調(diào)劑 +6 | 妮妮ninicgb 2026-03-15 | 9/450 |
|
|
[考研] 285求調(diào)劑 +6 | ytter 2026-03-12 | 6/300 |
|
|
[考研] 326求調(diào)劑 +3 | mlpqaz03 2026-03-15 | 3/150 |
|
|
[考研] 22408總分284求調(diào)劑 +3 | InAspic 2026-03-13 | 3/150 |
|
|
[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
|
|
[考研] 學(xué)碩285求調(diào)劑 +13 | Wisjxn 2026-03-12 | 46/2300 |
|
|
[考研] 材料工程調(diào)劑 +9 | 咪咪空空 2026-03-12 | 9/450 |
|
|
[考研] 26調(diào)劑/材料/英一數(shù)二/總分289/已過(guò)A區(qū)線 +6 | 步川酷紫123 2026-03-13 | 6/300 |
|
|
[考研] 301求調(diào)劑 +6 | Liyouyumairs 2026-03-11 | 6/300 |
|
|
[考研] 求b區(qū)學(xué)校調(diào)劑 +3 | 周56 2026-03-11 | 3/150 |
|
|
[考研] 308求調(diào)劑 +3 | 是Lupa啊 2026-03-12 | 3/150 |
|
|
[考研] 一志愿山大07化學(xué) 332分 四六級(jí)已過(guò) 本科山東雙非 求調(diào)劑! +3 | 不想理你 2026-03-12 | 3/150 |
|
|
[考博] 福州大學(xué)楊黃浩課題組招收2026年專業(yè)學(xué)位博士研究生,2026.03.20截止 +3 | Xiangyu_ou 2026-03-12 | 3/150 |
|