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Related Concept Videos

Co-activators and Co-repressors02:04

Co-activators and Co-repressors

Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
Co-activators and Co-repressors02:04

Co-activators and Co-repressors

Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
Transcriptional Regulation: Riboswitches01:23

Transcriptional Regulation: Riboswitches

Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...
Cooperative Binding of Transcription Regulators02:13

Cooperative Binding of Transcription Regulators

Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome.  Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form dimers that...
Cooperative Binding of Transcription Regulators02:13

Cooperative Binding of Transcription Regulators

Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome.  Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form dimers that...

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Functional and Regulatory Complexity: Challenges and Prospects for Understanding Rice WRKY Transcription Factors.

Kamal Neupane1, Federico Martin1, Jan E Leach1

  • 1Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80537-1177  USA.

Journal of Experimental Botany
|June 5, 2026
PubMed
Summary
This summary is machine-generated.

Understanding WRKY transcription factors (TFs) in rice is complex due to their large family size and diverse functions. This review outlines challenges and proposes a framework to unravel WRKY gene complexity for improved rice resilience.

Keywords:
Functional compensationWRKY transcription factorsfunctional redundancymachine learningmultifunctionalityregulatory networkricestress resiliencystress responsestructural prediction

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Area of Science:

  • Plant Biology
  • Molecular Genetics
  • Agricultural Science

Background:

  • WRKY transcription factors (TFs) are crucial for rice growth, development, and stress responses.
  • The large, diverse WRKY family in rice presents challenges for precise gene function determination.
  • Features like multifunctionality and redundancy obscure direct gene-trait relationships.

Purpose of the Study:

  • To review the challenges in characterizing WRKY gene functions in rice.
  • To present a framework for resolving WRKY complexity using experimental and computational approaches.
  • To highlight the need for integrated databases for WRKY research.

Main Methods:

  • Examination of intrinsic properties of the rice WRKY gene family.
  • Mapping experimental and computational approaches to barriers in WRKY functional resolution.
  • Synthesis of current methodologies for understanding WRKY complexity.

Main Results:

  • Identified four major barriers to WRKY functional resolution: context-dependent activity, functional redundancy, and target specificity.
  • Demonstrated how integrated approaches can resolve distinct layers of WRKY complexity.
  • Emphasized the necessity of WRKY-centric databases for accelerating functional discovery.

Conclusions:

  • A systems-level understanding of rice WRKY TFs is essential for improving crop resilience and productivity.
  • Overcoming functional characterization challenges will enable harnessing WRKY potential.
  • Integrated databases and advanced methodologies are key to unlocking WRKY TF functions.