scholarly journals GDNF-inducible zinc finger protein 1 is a sequence-specific transcriptional repressor that binds to the HOXA10 gene regulatory region

2005 ◽  
Vol 33 (13) ◽  
pp. 4191-4201 ◽  
Author(s):  
T. Morinaga
Keyword(s):  
Zinc Finger ◽  
Zinc Finger Protein ◽  
Regulatory Region ◽  
Transcriptional Repressor ◽  
Finger Protein ◽  
Gene Regulatory

scholarly journals A Cys2/His2 Zinc Finger Protein Acts as a Repressor of the Green Revolution Gene SD1/OsGA20ox2 in Rice (Oryza sativa L.)

2020 ◽  
Author(s):  
Min Duan ◽  
Xiao-Juan Ke ◽  
Hong-Xia Lan ◽  
Xi Yuan ◽  
Peng Huang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Zinc Finger ◽  
Growth And Development ◽  
Zinc Finger Protein ◽  
Green Revolution ◽  
Critical Role ◽  
Transcriptional Repressor ◽  
Fine Tuning ◽  
Plant Growth And Development ◽  
Finger Protein

Abstract Gibberellins (GAs) play important roles in the regulation of plant growth and development. The green revolution gene SD1 encoding gibberellin 20-oxidase 2 (GA20ox2) has been widely used in modern rice breeding. However, the molecular mechanism of how SD1/OsGA20ox2 expression is regulated remains unclear. Here, we report a Cys2/His2 zinc finger protein ZFP207 acting as a transcriptional repressor of OsGA20ox2. ZFP207 was mainly accumulated in young tissues and more specifically in culm nodes. ZFP207-overexpression (ZFP207OE) plants displayed semidwarfism phenotype and small grains by modulating cell length. RNA interference of ZFP207 caused increased plant height and grain length. The application of exogenous GA3 could rescue the semidwarf phenotype of ZFP207OE rice seedlings. Moreover, ZFP207 repressed the expression of OsGA20ox2 via binding to its promoter region. Taken together, ZFP207 acts as a transcriptional repressor of SD1/OsGA20ox2 and it may play a critical role in plant growth and development in rice through the fine-tuning of GA biosynthesis .

scholarly journals BCL-6, a POZ/zinc-finger protein, is a sequence-specific transcriptional repressor.

1996 ◽  
Vol 93 (14) ◽  
pp. 6947-6952 ◽  
Author(s):  
C. C. Chang ◽  
B. H. Ye ◽  
R. S. Chaganti ◽  
R. Dalla-Favera
Keyword(s):  
Zinc Finger ◽  
Zinc Finger Protein ◽  
Transcriptional Repressor ◽  
Finger Protein

scholarly journals A Cys2/His2 zinc finger protein acts as a repressor of gibberellins biosynthesis by regulating SD1/OsGA20ox2 in rice (Oryza sativa L.)

2019 ◽  
Author(s):  
Min Duan ◽  
Xiao-Juan Ke ◽  
Hong-Xia Lan ◽  
Xi Yuan ◽  
Peng Huang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Zinc Finger ◽  
Growth And Development ◽  
Zinc Finger Protein ◽  
Oryza Sativa L ◽  
Critical Role ◽  
Transcriptional Repressor ◽  
Fine Tuning ◽  
Plant Growth And Development ◽  
Finger Protein

AbstractGibberellins (GAs) play important roles in the regulation of plant growth and development. The green evolution geneSD1encoding gibberellin 20-oxidase 2 (GA20ox2) has been widely used in modern rice breeding. However, the molecular mechanism of howSD1/OsGA20ox2expression is regulated remains unclear. Here we report a Cys2/His2 zinc finger protein ZFP207 acting as a transcriptional repressor ofOsGA20ox2.ZFP207was mainly accumulated in young tissues and more specifically in culm nodes.ZFP207-overexpression (ZFP207OE) plants displayed semi-dwarfism phenotype and small grains by modulating cell length. RNA interference ofZFP207caused higher plant and longer grains. The endogenous bioactive GA levels were significantly reduced inZFP207OEplants and application of exogenous GA3rescued the semi-dwarf phenotype. Thein vivoandin vitrostudies showed that ZFP207 repressed the expression ofOsGA20ox2via binding to its promoter region. Together, ZFP207 acts as a transcriptional repressor of gibberellins biosynthesis and it may play a critical role in plant growth and development through fine-tuning GA biosynthesis in rice.

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