Evidence map›Paper›PMID 25901087›Full record

ArticleThe Plant cell2015

Transcriptional Regulation of Zein Gene Expression in Maize through the Additive and Synergistic Action of opaque2, Prolamine-Box Binding Factor, and O2 Heterodimerizing Proteins.

Zhiyong Zhang, Jun Yang, Yongrui Wu

Open access · greenAbstract read
In one paragraph

Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
15.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

79 citing papers in PubMed, 150 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Meta-QTLs and candidate genes for kernel protein content in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Article
  6. Article
  7. A Trypsin-Like Serine Protease ZmNAL1a Fine-Tunes Maize Floral Transition and Flowering Time.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  8. Article
  9. Article
  10. Review
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  15. Article
  16. Article
  17. Article
  18. Identification of QTLs associated withFrontiers in plant science · 2025
    Article
  19. Article
  20. Article

19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Zhiyong ZhangNational Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.
Jun YangNational Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.
Yongrui WuNational Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China yrwu@sibs.ac.cn.
Shanghai Institutes for Biological Sciences · CNChinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maize (Zea mays) zeins are some of the most abundant cereal seed storage proteins (SSPs). Their abundance influences kernel hardness but compromises its nutritional quality. Transcription factors regulating the expression of zein and other SSP genes in cereals are endosperm-specific and homologs of maize opaque2 (O2) and prolamine-box binding factor (PBF). This study demonstrates that the ubiquitously expressed transcription factors, O2 heterodimerizing proteins (OHPs), specifically regulate 27-kD γ-zein gene expression (through binding to an O2-like box in its promoter) and interact with PBF. The zein content of double mutants OhpRNAi;o2 and PbfRNAi;o2 and the triple mutant PbfRNAi;OhpRNAi;o2 is reduced by 83, 89, and 90%, respectively, compared with the wild type. The triple mutant developed the smallest zein protein bodies, which were merely one-tenth the wild type's size. Total protein levels in these mutants were maintained in a relatively constant range through proteome rebalancing. These data show that OHPs, O2, and PBF are master regulators of zein storage protein synthesis, acting in an additive and synergistic mode. The differential expression patterns of OHP and O2 genes may cause the slight differences in the timing of 27-kD γ-zein and 22-kD α-zein accumulation during protein body formation.

Indexed as

Gene Expression Regulation, PlantPlant ProteinsTranscription FactorsZea maysZeinPlant ProteinsTranscription FactorsZein

Identifiers

PMID25901087
PMCPMC4558697
OpenAlexW2021703760

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.