scholarly journals Class II (B) general transcription factor (TFIIB) that binds to the template-committed preinitiation complex is different from general transcription factor BTF3.

1992 ◽  
Vol 89 (1) ◽  
pp. 397-401 ◽  
Author(s):  
V. Moncollin ◽  
L. Fischer ◽  
B. Cavallini ◽  
J. M. Egly ◽  
P. Chambon
Keyword(s):  
Transcription Factor ◽  
Class Ii ◽  
Preinitiation Complex ◽  
General Transcription Factor

scholarly journals NuA4-Directed Chromatin Transactions throughout the Saccharomyces cerevisiae Genome

2007 ◽  
Vol 27 (15) ◽  
pp. 5327-5335 ◽  
Author(s):  
Melissa Durant ◽  
B. Franklin Pugh
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Transcription Factor ◽  
Chromatin Remodeling ◽  
Histone Acetyltransferases ◽  
Histone H2a ◽  
Preinitiation Complex ◽  
General Transcription Factor ◽  
Bromodomain Proteins ◽  
Genomic Scale ◽  
H3 Acetylation

ABSTRACT Two of the major histone acetyltransferases in Saccharomyces cerevisiae are NuA4 and SAGA, which acetylate histones H4 and H3, respectively. Acetylated H3 and H4 tails have been implicated in binding bromodomain proteins, including Bdf1. Bdf1 interacts with the general transcription factor TFIID, which might promote preinitiation complex (PIC) assembly. Bdf1 also interacts with the SWR complex (SWR-C). SWR-C is responsible for the deposition of the histone H2A variant H2A.Z. The placement of these interactions into a connected pathway of PIC assembly has not been fully established. Moreover, it is not known how widespread and how variable such a pathway might be on a genomic scale. Here we provide genomic evidence for S. cerevisiae that PIC assembly (TFIID occupancy) and chromatin remodeling (SWR-C and H2A.Z occupancy) are linked in large part to NuA4-directed H4 acetylation and subsequent Bdf1 binding, rather than through SAGA-directed H3 acetylation. Bdf1 and its homolog Bdf2 tend to have distinct locations in the genome. However, the deletion of BDF1 leads to the accumulation of Bdf2 at Bdf1-vacated sites. Thus, while Bdf1 and Bdf2 are at least partially redundant in function, their functions in the genome are geographically distinct.

scholarly journals Rapid dynamics of general transcription factor TFIIB binding during preinitiation complex assembly revealed by single-molecule analysis

2016 ◽  
Vol 30 (18) ◽  
pp. 2106-2118 ◽  
Author(s):  
Zhengjian Zhang ◽  
Brian P. English ◽  
Jonathan B. Grimm ◽  
Stephanie A. Kazane ◽  
Wenxin Hu ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Single Molecule ◽  
Preinitiation Complex ◽  
Complex Assembly ◽  
General Transcription Factor ◽  
Single Molecule Analysis

scholarly journals Transcriptional Activation in Yeast Cells Lacking Transcription Factor IIA

Genetics ◽  
1999 ◽  
Vol 153 (4) ◽  
pp. 1573-1581 ◽  
Author(s):  
Susanna Chou ◽  
Sukalyan Chatterjee ◽  
Mark Lee ◽  
Kevin Struhl
Keyword(s):  
Transcription Factor ◽  
Transcriptional Activation ◽  
Large Subunit ◽  
Yeast Cells ◽  
Specific Cell ◽  
Wild Type ◽  
Activation Domains ◽  
Cycle Arrest ◽  
General Transcription Factor

Abstract The general transcription factor IIA (TFIIA) forms a complex with TFIID at the TATA promoter element, and it inhibits the function of several negative regulators of the TATA-binding protein (TBP) subunit of TFIID. Biochemical experiments suggest that TFIIA is important in the response to transcriptional activators because activation domains can interact with TFIIA, increase recruitment of TFIID and TFIIA to the promoter, and promote isomerization of the TFIID-TFIIA-TATA complex. Here, we describe a double-shut-off approach to deplete yeast cells of Toa1, the large subunit of TFIIA, to <1% of the wild-type level. Interestingly, such TFIIA-depleted cells are essentially unaffected for activation by heat shock factor, Ace1, and Gal4-VP16. However, depletion of TFIIA causes a general two- to threefold decrease of transcription from most yeast promoters and a specific cell-cycle arrest at the G2-M boundary. These results indicate that transcriptional activation in vivo can occur in the absence of TFIIA.

scholarly journals Purification and interaction properties of the human RNA polymerase B(II) general transcription factor BTF2.

1991 ◽  
Vol 266 (31) ◽  
pp. 20940-20945
Author(s):  
M. Gerard ◽  
L. Fischer ◽  
V. Moncollin ◽  
J.M. Chipoulet ◽  
P. Chambon ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Rna Polymerase ◽  
General Transcription Factor

scholarly journals Overexpressing the HD-Zip class II transcription factor EcHB1 from Eucalyptus camaldulensis increased the leaf photosynthesis and drought tolerance of Eucalyptus

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Keisuke Sasaki ◽  
Yuuki Ida ◽  
Sakihito Kitajima ◽  
Tetsu Kawazu ◽  
Takashi Hibino ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Leaf Area ◽  
Leucine Zipper ◽  
Eucalyptus Grandis ◽  
Eucalyptus Camaldulensis ◽  
Class Ii ◽  
Cell Multiplication ◽  
Leaf Photosynthesis ◽  
Unit Leaf

Abstract Alteration in the leaf mesophyll anatomy by genetic modification is potentially a promising tool for improving the physiological functions of trees by improving leaf photosynthesis. Homeodomain leucine zipper (HD-Zip) transcription factors are candidates for anatomical alterations of leaves through modification of cell multiplication, differentiation, and expansion. Full-length cDNA encoding a Eucalyptus camaldulensis HD-Zip class II transcription factor (EcHB1) was over-expressed in vivo in the hybrid Eucalyptus GUT5 generated from Eucalyptus grandis and Eucalyptus urophylla. Overexpression of EcHB1 induced significant modification in the mesophyll anatomy of Eucalyptus with enhancements in the number of cells and chloroplasts on a leaf-area basis. The leaf-area-based photosynthesis of Eucalyptus was improved in the EcHB1-overexpression lines, which was due to both enhanced CO2 diffusion into chloroplasts and increased photosynthetic biochemical functions through increased number of chloroplasts per unit leaf area. Additionally, overexpression of EcHB1 suppressed defoliation and thus improved the growth of Eucalyptus trees under drought stress, which was a result of reduced water loss from trees due to the reduction in leaf area with no changes in stomatal morphology. These results gave us new insights into the role of the HD-Zip II gene.

Binding of general transcription factor TFIIB to an acidic activating region

Nature ◽  
1991 ◽  
Vol 353 (6344) ◽  
pp. 569-571 ◽  
Author(s):  
Young-Sun Lin ◽  
Ilho Ha ◽  
Edio Maldonado ◽  
Danny Reinberg ◽  
Michael R. Green
Keyword(s):  
Transcription Factor ◽  
General Transcription Factor

scholarly journals The mutationnrpb1-A325Vin the largest subunit of RNA polymerase II suppresses compromised growth ofArabidopsisplants deficient in a function of the general transcription factor IIF

2017 ◽  
Vol 89 (4) ◽  
pp. 730-745 ◽  
Author(s):  
Elena Babiychuk ◽  
Khai Trinh Hoang ◽  
Klaas Vandepoele ◽  
Eveline Van De Slijke ◽  
Danny Geelen ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
General Transcription Factor ◽  
Transcription Factor Iif
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