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308 results for “Transcription elongation”
Ditrect STORM imaging and image reconstruction of the transcription elongation marker P-S2 and nuclear PI(3,4)P2 indirectly immunolabeled with AF647 (red) and AF555 (green) in THZ1 treated cells.
<p>U-2 OS cells were grown in DMEM with 10% FBS at 37°C and 5% CO<sub>2</sub>. Cells were plated one day before staining in ~50% confluence on the high-precision 12 mm round coverslips treated with Hellmanex, sonicated, washed, dried and sterilized. Cells were treated for 3h with 1 µM THZ1 (MedChem HY80013) added to the culture media.</p> <p>U2OS cells were washed twice with PBS (pH 7.4) and fixed for 30 min in 2% PFA in PBS, washed 3-times for 5 min with PBS, then permeabilized in 0.1% Triton X-100 in PBS for 20 min, washed 3-times for 5 min by PBS and blocked in filtered 5% BSA in PBS for 30 min. Cells were incubated for 45 min with rabbit polyclonal IgG anti-RNAPII CTD P-S2 (Abcam ab5095) 3 µg/mL and mouse monoclonal IgG2 anti-PI(3,4)P2 (Z-P034; Echelon Biosci. Inc., USA) 5 µg/mL in 5% BSA in PBS, washed 3-times for 5 min in PBS and incubated for 30 min with donkey anti-mouse IgG AF555 (Invitrogen A31570) 10 µg/mL and goat anti-rabbit IgG AF647 (Invitrogen A21245) 10 µg/mL diluted in 5% BSA in PBS. Then the cells were washed 3-times for 5 min in PBS, post-fixed for 15 min in 2% PFA in PBS and washed 3-times for 5 min in PBS. All procedures were performed at RT and the cells were stored in PBS in the fridge overnight prior imaging.</p> <p>Coverslips with cells were mounted in the Chamlide chamber (Live Cell Instrument, Korea) and covered with imaging buffer (PBS pH 7.4, 50 mM MEA). Single-molecule localizations (SMLs) data were acquired by Zeiss Elyra PS.1 equipped with HR Diode 642-150 and HR DPSS 561-200 lasers, Alpha Plan-Apochromat 100x/1.46 oil DIC M27 Elyra objective and Andor EM CCD iXon DU 897 camera and Zeiss ZEN Black 2.1 SP3 software (Zeiss). AF647 and AF555 photo-switching was achieved by HiLo illumination and TIRF HP FOV with 100% power of 642nm or 561nm laser, and the signal was acquired via MBS 642 + EF LP 655 and MBS 561 + EF BP 570-620 / LP 750 filters, respectively. Exposure time was 40 ms and EM gain was 300 for both channels.</p> <p>SMLs were calculated in 2D by Zeiss ZEN Black 2.1 SP3 software using x,y 2D Gauss fit with point spread function (PSF) half width 177.9 nm, peak mask size 9 pixels and peak intensity to noise 6 and accounted for overlap in 2D with max cluster size 10. SMLs were rendered in ZEN software with 10 nm/px resolution and 1x PSF expansion factor. The data were model-based drift corrected in ZEN. Two channels were aligned using tetraspec beads fiducial markers for affine calibration. Drift-corrected and aligned localization coordinates were exported as text files. Text files were converted into csv files and imported using self-written macro (Hoboth et al., 2021a) into the ImageJ2 (Rueden et al., 2017) plug-in ThunderSTORM, visualized by normalized Gaussian method (Ovesny et al., 2014).</p>
Ditrect STORM imaging and image reconstruction of the transcription elongation marker P-S2 and nuclear PI(3,4)P2 indirectly immunolabeled with AF647 (red) and AF555 (green) in control cells.
<p>U-2 OS cells were grown in DMEM with 10% FBS at 37°C and 5% CO<sub>2</sub>. Cells were plated one day before staining in ~50% confluence on the high-precision 12 mm round coverslips treated with Hellmanex, sonicated, washed, dried and sterilized. Cells were control treated with 1:000 DMSO in the culture media.</p> <p>U2OS cells were washed twice with PBS (pH 7.4) and fixed for 30 min in 2% PFA in PBS, washed 3-times for 5 min with PBS, then permeabilized in 0.1% Triton X-100 in PBS for 20 min, washed 3-times for 5 min by PBS and blocked in filtered 5% BSA in PBS for 30 min. Cells were incubated for 45 min with rabbit polyclonal IgG anti-RNAPII CTD P-S2 (Abcam ab5095) 3 µg/mL and mouse monoclonal IgG2 anti-PI(3,4)P2 (Z-P034; Echelon Biosci. Inc., USA) 5 µg/mL in 5% BSA in PBS, washed 3-times for 5 min in PBS and incubated for 30 min with donkey anti-mouse IgG AF555 (Invitrogen A31570) 10 µg/mL and goat anti-rabbit IgG AF647 (Invitrogen A21245) 10 µg/mL diluted in 5% BSA in PBS. Then the cells were washed 3-times for 5 min in PBS, post-fixed for 15 min in 2% PFA in PBS and washed 3-times for 5 min in PBS. All procedures were performed at RT and the cells were stored in PBS in the fridge overnight prior imaging.</p> <p>Coverslips with cells were mounted in the Chamlide chamber (Live Cell Instrument, Korea) and covered with imaging buffer (PBS pH 7.4, 50 mM MEA). Single-molecule localizations (SMLs) data were acquired by Zeiss Elyra PS.1 equipped with HR Diode 642-150 and HR DPSS 561-200 lasers, Alpha Plan-Apochromat 100x/1.46 oil DIC M27 Elyra objective and Andor EM CCD iXon DU 897 camera and Zeiss ZEN Black 2.1 SP3 software (Zeiss). AF647 and AF555 photo-switching was achieved by HiLo illumination and TIRF HP FOV with 100% power of 642nm or 561nm laser, and the signal was acquired via MBS 642 + EF LP 655 and MBS 561 + EF BP 570-620 / LP 750 filters, respectively. Exposure time was 40 ms and EM gain was 300 for both channels.</p> <p>SMLs were calculated in 2D by Zeiss ZEN Black 2.1 SP3 software using x,y 2D Gauss fit with point spread function (PSF) half width 177.9 nm, peak mask size 9 pixels and peak intensity to noise 6 and accounted for overlap in 2D with max cluster size 10. SMLs were rendered in ZEN software with 10 nm/px resolution and 1x PSF expansion factor. The data were model-based drift corrected in ZEN. Two channels were aligned using tetraspec beads fiducial markers for affine calibration. Drift-corrected and aligned localization coordinates were exported as text files. Text files were converted into csv files and imported using self-written macro (Hoboth et al., 2021a) into the ImageJ2 (Rueden et al., 2017) plug-in ThunderSTORM, visualized by normalized Gaussian method (Ovesny et al., 2014).</p>
Ditrect STORM imaging and image reconstruction of the transcription elongation marker P-S2 and nuclear PI(4,5)P2 indirectly immunolabeled with AF647 (red) and AF555 (green) in control cells.
<p>U-2 OS cells were grown in DMEM with 10% FBS at 37°C and 5% CO<sub>2</sub>. Cells were plated one day before staining in ~50% confluence on the high-precision 12 mm round coverslips treated with Hellmanex, sonicated, washed, dried and sterilized. Cells were control treated with 1:000 DMSO in the culture media.</p> <p>U2OS cells were washed twice with PBS (pH 7.4) and fixed for 30 min in 2% PFA in PBS, washed 3-times for 5 min with PBS, then permeabilized in 0.1% Triton X-100 in PBS for 20 min, washed 3-times for 5 min by PBS and blocked in filtered 5% BSA in PBS for 30 min. Cells were incubated for 45 min with rabbit polyclonal IgG anti-RNAPII CTD P-S2 (Abcam ab5095) 3 µg/mL and mouse ascites IgM anti-PI(4,5)P2 2C11 (Z-A045; Echelon Biosci. Inc., USA) 5 µg/mL in 5% BSA in PBS, washed 3-times for 5 min in PBS and incubated for 30 min with goat anti-mouse IgM (µ-chain) AF555 (Jackson ImmunoRes. A24126) 10 µg/mL; goat anti-rabbit IgG AF647 (Invitrogen A21245) 10 µg/mL diluted in 5% BSA in PBS. Then the cells were washed 3-times for 5 min in PBS, post-fixed for 15 min in 2% PFA in PBS and washed 3-times for 5 min in PBS. All procedures were performed at RT and the cells were stored in PBS in the fridge overnight prior imaging.</p> <p>Coverslips with cells were mounted in the Chamlide chamber (Live Cell Instrument, Korea) and covered with imaging buffer (PBS pH 7.4, 50 mM MEA). Single-molecule localizations (SMLs) data were acquired by Zeiss Elyra PS.1 equipped with HR Diode 642-150 and HR DPSS 561-200 lasers, Alpha Plan-Apochromat 100x/1.46 oil DIC M27 Elyra objective and Andor EM CCD iXon DU 897 camera and Zeiss ZEN Black 2.1 SP3 software (Zeiss). AF647 and AF555 photo-switching was achieved by HiLo illumination and TIRF HP FOV with 100% power of 642nm or 561nm laser, and the signal was acquired via MBS 642 + EF LP 655 and MBS 561 + EF BP 570-620 / LP 750 filters, respectively. Exposure time was 40 ms and EM gain was 300 for both channels.</p> <p>SMLs were calculated in 2D by Zeiss ZEN Black 2.1 SP3 software using x,y 2D Gauss fit with point spread function (PSF) half width 177.9 nm, peak mask size 9 pixels and peak intensity to noise 6 and accounted for overlap in 2D with max cluster size 10. SMLs were rendered in ZEN software with 10 nm/px resolution and 1x PSF expansion factor. The data were model-based drift corrected in ZEN. Two channels were aligned using tetraspec beads fiducial markers for affine calibration. Drift-corrected and aligned localization coordinates were exported as text files. Text files were converted into csv files and imported using self-written macro (Hoboth et al., 2021a) into the ImageJ2 (Rueden et al., 2017) plug-in ThunderSTORM, visualized by normalized Gaussian method (Ovesny et al., 2014).</p>
Ditrect STORM imaging and image reconstruction of the transcription elongation marker P-S2 and nuclear PI(4,5)P2 indirectly immunolabeled with AF647 (red) and AF555 (green) in DRB treated cells.
<p>U-2 OS cells were grown in DMEM with 10% FBS at 37°C and 5% CO<sub>2</sub>. Cells were plated one day before staining in ~50% confluence on the high-precision 12 mm round coverslips treated with Hellmanex, sonicated, washed, dried and sterilized. Cells were treated for 2h with 100 µM DRB (Sigma D1916) added to the cell culture media.</p> <p>U2OS cells were washed twice with PBS (pH 7.4) and fixed for 30 min in 2% PFA in PBS, washed 3-times for 5 min with PBS, then permeabilized in 0.1% Triton X-100 in PBS for 20 min, washed 3-times for 5 min by PBS and blocked in filtered 5% BSA in PBS for 30 min. Cells were incubated for 45 min with rabbit polyclonal IgG anti-RNAPII CTD P-S2 (Abcam ab5095) 3 µg/mL and mouse ascites IgM anti-PI(4,5)P2 2C11 (Z-A045; Echelon Biosci. Inc., USA) 5 µg/mL in 5% BSA in PBS, washed 3-times for 5 min in PBS and incubated for 30 min with goat anti-mouse IgM (µ-chain) AF555 (Jackson ImmunoRes. A24126) 10 µg/mL; goat anti-rabbit IgG AF647 (Invitrogen A21245) 10 µg/mL diluted in 5% BSA in PBS. Then the cells were washed 3-times for 5 min in PBS, post-fixed for 15 min in 2% PFA in PBS and washed 3-times for 5 min in PBS. All procedures were performed at RT and the cells were stored in PBS in the fridge overnight prior imaging.</p> <p>Coverslips with cells were mounted in the Chamlide chamber (Live Cell Instrument, Korea) and covered with imaging buffer (PBS pH 7.4, 50 mM MEA). Single-molecule localizations (SMLs) data were acquired by Zeiss Elyra PS.1 equipped with HR Diode 642-150 and HR DPSS 561-200 lasers, Alpha Plan-Apochromat 100x/1.46 oil DIC M27 Elyra objective and Andor EM CCD iXon DU 897 camera and Zeiss ZEN Black 2.1 SP3 software (Zeiss). AF647 and AF555 photo-switching was achieved by HiLo illumination and TIRF HP FOV with 100% power of 642nm or 561nm laser, and the signal was acquired via MBS 642 + EF LP 655 and MBS 561 + EF BP 570-620 / LP 750 filters, respectively. Exposure time was 40 ms and EM gain was 300 for both channels.</p> <p>SMLs were calculated in 2D by Zeiss ZEN Black 2.1 SP3 software using x,y 2D Gauss fit with point spread function (PSF) half width 177.9 nm, peak mask size 9 pixels and peak intensity to noise 6 and accounted for overlap in 2D with max cluster size 10. SMLs were rendered in ZEN software with 10 nm/px resolution and 1x PSF expansion factor. The data were model-based drift corrected in ZEN. Two channels were aligned using tetraspec beads fiducial markers for affine calibration. Drift-corrected and aligned localization coordinates were exported as text files. Text files were converted into csv files and imported using self-written macro (Hoboth et al., 2021a) into the ImageJ2 (Rueden et al., 2017) plug-in ThunderSTORM, visualized by normalized Gaussian method (Ovesny et al., 2014).</p>
Data from: Pleomorphic effects of three small-molecule inhibitors on transcription elongation by <em>Mycobacterium tuberculosis</em> RNA polymerase
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Supporting data for "Dynamics of RNA polymerase II and elongation factor Spt4/5 recruitment during activator-dependent transcription"
<p>Supporting data for</p> <p><strong>Dynamics of RNA polymerase II and elongation factor Spt4/5 recruitment</strong></p> <p><strong>during activator-dependent transcription </strong></p> <p>Grace A. Rosen<sup>a,1</sup>, Inwha Baek<sup>b,1</sup>, Larry J. Friedman<sup>a</sup>, Yoo Jin Joo<sup>b</sup>, Stephen Buratowski<sup>b,2</sup>, Jeff Gelles<sup>a,2</sup></p> <p><sup>a</sup>Department of Biochemistry, Brandeis University, Waltham, Massachusetts 02454, USA.</p> <p><sup>b</sup>Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA.</p> <p><sup>1</sup>Equal contributions</p> <p><sup>2</sup>Corresponding authors: <a href="mailto:steveb@hms.harvard.edu">steveb@hms.harvard.edu</a>; +1 (617) 432-0696 (S.B.) and <a href="mailto:gelles@brandeis.edu">gelles@brandeis.edu</a>; +1 (781) 736-2377 (J.G.)</p> <p>See <strong>Source data index.pdf</strong> for description of files.</p>
Analysis of antibody signal loss for elongating RNA polymerase II upon transcription inhibition
<p>This data set assesses the loss of antibody signal for elongating RNA polymerase II in zebrafish embryos upon transcription inhibition with flavopiridol. Polymerase was labeled by immunofluorescence, microscopy images were acquired by instant-SIM micrscopy, and analyzed using MatLab scripts and the bioformats importer. This data set contains the raw image data as well as all further analysis scripts.</p>
Predictive model of transcriptional elongation control identifies trans regulatory factors from chromatin signatures
<p>Supplementary data for "Predictive model of transcriptional elongation control identifies trans regulatory factors from chromatin signatures" by Toray S. Akcan, Matthias Heinig.</p>
A total RNA-Seq screen reveals that the splicing inhibitor Isoginkgetin blocks transcription elongation
GEO Series GSE86857. Homo sapiens. 80 samples. Type: Expression profiling by high throughput sequencing.
Disruption of RNAPII transcription elongation links Oncogenic splicing factor mutations to replciation stress and targetable alterations in chromatin landscape [ATAC-seq]
GEO Series GSE225993. Homo sapiens; Mus musculus. 16 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
THOC5 complexes with DDX5, DDX17 and CDK12 to regulate R loop structures and transcription elongation rate
GEO Series GSE173374. Homo sapiens. 29 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Other.
X chromosome dosage compensation via enhanced transcriptional elongation in Drosophila males (Untreated)
GEO Series GSE25321. Drosophila melanogaster. 3 samples. Type: Expression profiling by high throughput sequencing.
Involvement of transcription elongation factor GreA in Mycobacterium tuberculosis viability, antibiotic susceptibility, and intracellular fitness
GEO Series GSE143764. Mycolicibacterium smegmatis MC2 155. 10 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Fission yeast Cactin restricts telomere transcription and elongation by promoting Rap1 pre-mRNA splicing and protein stabilization
GEO Series GSE61792. Schizosaccharomyces pombe. 5 samples. Type: Expression profiling by genome tiling array.
Histone variant H3.3-specific readout of H3K36 trimethylation by ZMYND11 links transcription elongation control to tumour suppression
GEO Series GSE48423. Homo sapiens. 13 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing.
The Double-Strand Break Landscape of Meiotic Chromosomes Is Shaped by the Paf1 Transcription Elongation Complex in Saccharomyces cerevisiae
GEO Series GSE72827. Saccharomyces cerevisiae. 4 samples. Type: Other.
The Human Integrator Complex Facilitates Transcriptional Elongation by Endonucleolytic Cleavage of Nascent Transcripts
GEO Series GSE125534. Homo sapiens. 70 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing.
Slow transcriptional elongation causes embryonic lethality and perturbs kinetic coupling of long neural genes
GEO Series GSE127741. Mus musculus. 69 samples. Type: Expression profiling by high throughput sequencing; Other.
Defective RNA processing and ELOA-mediated transcriptional elongation in reversible cellular senescence suggest aging by transcription
GEO Series GSE297352. Homo sapiens. 58 samples. Type: Expression profiling by high throughput sequencing.
A CSB-PAF1C axis restores processive transcription elongation after DNA damage repair
GEO Series GSE140930. Homo sapiens. 79 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Other.
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