Functional characterization of the promoter region of the chicken elongation factor-2 gene

Gene ◽  
2007 ◽  
Vol 386 (1-2) ◽  
pp. 183-190 ◽  
Author(s):  
Eun Jin Lim ◽  
Choong Won Kim
1992 ◽  
Vol 267 (2) ◽  
pp. 1190-1197 ◽  
Author(s):  
J P Perentesis ◽  
L D Phan ◽  
W B Gleason ◽  
D C LaPorte ◽  
D M Livingston ◽  
...  

1993 ◽  
Vol 13 (5) ◽  
pp. 2718-2729
Author(s):  
S F Kash ◽  
J W Innis ◽  
A U Jackson ◽  
R E Kellems

Transcription arrest plays a role in regulating the expression of a number of genes, including the murine adenosine deaminase (ADA) gene. We have previously identified two prominent arrest sites at the 5' end of the ADA gene: one in the first exon and one in the first intron (J. W. Innis and R. E. Kellems, Mol. Cell. Biol. 11:5398-5409, 1991). Here we report the functional characterization of the intron 1 arrest site, located 137 to 145 nucleotides downstream of the cap site. We have determined, using gel filtration, that the intron 1 arrest site is a stable RNA polymerase II pause site and that the transcription elongation factor SII promotes read-through at this site. Additionally, the sequence determinants for the pause are located within a 37-bp fragment encompassing this site (+123 to +158) and can direct transcription arrest in an orientation-dependent manner in the context of the ADA and adenovirus major late promoters. Specific point mutations in this region increase or decrease the relative pausing efficiency. We also show that the sequence determinants for transcription arrest can function when placed an additional 104 bp downstream of their natural position.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11508
Author(s):  
Yubing Yong ◽  
Yue Zhang ◽  
Yingmin Lyu

Background. We have previously performed an analysis of the cold-responsive transcriptome in the mature leaves of tiger lily (Lilium lancifolium) by gene co-expression network identification. The results has revealed that a ZFHD gene, notated as encoding zinc finger homeodomain protein, may play an essential regulating role in tiger lily response to cold stress. Methods. A further investigation of the ZFHD gene (termed as LlZFHD4) responding to osmotic stresses, including cold, salt, water stresses, and abscisic acid (ABA) was performed in this study. Based on the transcriptome sequences, the coding region and 5′ promoter region of LlZFHD4 were cloned from mature tiger lily leaves. Stress response analysis was performed under continuous 4 °C, NaCl, PEG, and ABA treatments. Functional characterization of LlZFHD4 was conducted in transgenic Arabidopsis, tobacco, and yeast. Results. LlZFHD4 encodes a nuclear-localized protein consisting of 180 amino acids. The N-terminal region of LlZFHD4 has transcriptional activation activity in yeast. The 4 °C, NaCl, PEG, and ABA treatments induced the expression of LlZFHD4. Several stress- or hormone-responsive cis-acting regulatory elements (T-Box, BoxI. and ARF) and binding sites of transcription factors (MYC, DRE and W-box) were found in the core promoter region (789 bp) of LlZFHD4. Also, the GUS gene driven by LlZFHD4 promoter was up-regulated by cold, NaCl, water stresses, and ABA in Arabidopsis. Overexpression of LlZFHD4 improved cold and drought tolerance in transgenic Arabidopsis; higher survival rate and better osmotic adjustment capacity were observed in LlZFHD4 transgenic plants compared to wild type (WT) plants under 4 °C and PEG conditions. However, LlZFHD4 transgenic plants were less tolerant to salinity and more hypersensitive to ABA compared to WT plants. The transcript levels of stress- and ABA-responsive genes were much more up-regulated in LlZFHD4 transgenic Arabidopsis than WT. These results indicate LlZFHD4 is involved in ABA signaling pathway and plays a crucial role in regulating the response of tiger lily to cold, salt and water stresses.


2014 ◽  
Vol 99 (5) ◽  
pp. E931-E935 ◽  
Author(s):  
Karen Mei Ling Tan ◽  
Shu Qin Delicia Ooi ◽  
Siong Gim Ong ◽  
Charmaine Shuyi Kwan ◽  
Raymond Ming En Chan ◽  
...  

1987 ◽  
Vol 7 (7) ◽  
pp. 2592-2596
Author(s):  
E K Hoffman ◽  
S P Trusko ◽  
N Freeman ◽  
D L George

We isolated and characterized the 5' region of the mouse c-Ki-ras gene, including a 5' untranslated exon (exon 0). These studies used genetic material from Y1 mouse adrenocortical tumor cells in which the c-Ki-ras gene is amplified and overexpressed. Our data demonstrate that transcription initiates at multiple sites, predicting size heterogeneity at the 5' ends of the c-Ki-ras mRNAs. Using transient expression assays, we identified a genomic fragment within the 5' region which exhibits bidirectional promoter activity.


2019 ◽  
Vol 158 ◽  
pp. 15-19
Author(s):  
Rasmus Kock Flygaard ◽  
Beatrice Malacrida ◽  
Patrick Kiely ◽  
Lasse Bohl Jenner

1995 ◽  
Vol 71 (1) ◽  
pp. 143-147 ◽  
Author(s):  
Douglas E. Jones ◽  
Tu D. Tu ◽  
Sameer Mathur ◽  
Raymond W. Sweeney ◽  
Douglas P. Clark

2000 ◽  
Vol 20 (5) ◽  
pp. 1335-1339 ◽  
Author(s):  
Ferdinand M. van ′t Hooft ◽  
Björn Lundahl ◽  
Francesca Ragogna ◽  
Fredrik Karpe ◽  
Gunilla Olivecrona ◽  
...  

Hepatology ◽  
1997 ◽  
Vol 26 (4) ◽  
pp. 991-997 ◽  
Author(s):  
G Kullak-Ublick ◽  
U Beuers ◽  
C Fahney ◽  
B Hagenbuch ◽  
P J Meier ◽  
...  

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