Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Profiling the target genes for LSD1, MTA1, MTA2, and MTA3 in MCF-7

ABSTRACT: Using ChIP-DSL technology from AVIVA SYSTEMS BIOLOGY to find out the whole genome targets for LSD1, MTA1, MTA2, and MTA3 We analyzed arrays using antibodies against LSD1, MTA1, MTA2, or MTA3 and negative control to acquire the enriched ratio of each gene.

ORGANISM(S): Homo sapiens

SUBMITTER: Yongfeng Shang

PROVIDER: E-GEOD-14260 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

LSD1 is a subunit of the NuRD complex and targets the metastasis programs in breast cancer.

Wang Yan Y Zhang Hua H Chen Yupeng Y Sun Yimin Y Yang Fen F Yu Wenhua W Liang Jing J Sun Luyang L Yang Xiaohan X Shi Lei L Li Ruifang R Li Yanyan Y Zhang Yu Y Li Qian Q Yi Xia X Shang Yongfeng Y

Cell 20090801 4

Lysine-specific demethylase 1 (LSD1) exerts pathway-specific activity in animal development and has been linked to several high-risk cancers. Here, we report that LSD1 is an integral component of the Mi-2/nucleosome remodeling and deacetylase (NuRD) complex. Transcriptional target analysis revealed that the LSD1/NuRD complexes regulate several cellular signaling pathways including TGFbeta1 signaling pathway that are critically involved in cell proliferation, survival, and epithelial-to-mesenchym ...[more]

PMID: 19703393

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Project description:Despite being one of the first eukaryotic transcriptional regulatory elements identified, the sequence of a native TATA box and its significance remain elusive. Applying criteria associated with TATA boxes we queried several Saccharomyces genomes and arrived at the consensus TATA(A/T)A(A/T)(A/G). Approximately 20% of yeast genes contain a TATA box. Strikingly, TATA box-containing genes are associated with responses to stress, are highly regulated, and preferentially utilize SAGA rather than TFIID when compared to TATA-less promoters. Transcriptional regulation in yeast appears to be mechanistically bipolar, possibly reflecting a need to balance inducible stress-related responses with constitutive housekeeping functions. A strain containing amino terminal HA-tagged TBP and its parental untagged counterpart BY4741 (Resgen) were grown at 23?C in CSM to OD600 = 0.8-1.0. Cultures were shifted to 37?C for 5 minutes (to mimic heat treatments used elsewhere (Huisinga and Pugh, 2004)), then crosslinked at 23?C with 1% formaldehyde. ChIP was performed as described previously (Strahl-Bolsinger et al., 1997) with the some modification. Following cell disruption with glass beads, the chromatin was partially purified by centrifugation (Kurdistani and Grunstein, 2003). HA-TBP was immunopurified with 12CA5 antibody. After elution and reversal of the crosslinks, samples were subjected to non-specific amplification, labeling, and array hybridization as described (Bohlander et al., 1992; Chitikila et al., 2002). The amplification procedure was modified as follows. Following 15 round B amplification cycles, DNA was purified via QIAquick PCR Purification kit. Ten cycles were used in round C. Intergenic microarrays were generated by PCR amplification of entire intergenic regions of all yeast genes, then spotted onto glass slides. Spot intensities were filtered to remove any signal that was less then one standard deviation above local background. Three replicates were performed and their log2 ratios (enriched/input) were averaged. Keywords = Chromatin Immunoprecipitation Keywords = genome-wide binding

Dataset Information

Profiling the target genes for LSD1, MTA1, MTA2, and MTA3 in MCF-7

Publications

LSD1 is a subunit of the NuRD complex and targets the metastasis programs in breast cancer.

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