Evidence map›Paper›PMID 27069118›Full record

ArticleJournal of experimental botany2016

Arabidopsis ubiquitin-conjugating enzyme UBC22 is required for female gametophyte development and likely involved in Lys11-linked ubiquitination.

Sheng Wang, Ling Cao, Hong Wang

Open access · hybridAbstract read
In one paragraph

Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Genome-Wide Identification of theInternational journal of molecular sciences · 2024
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  15. The Inactivation of ArabidopsisPlants (Basel, Switzerland) · 2021
    Article
  16. Article
  17. Article
  18. Beyond K48 and K63: non-canonical protein ubiquitination.Cellular & molecular biology letters · 2021
    Review
  19. Review
  20. Plants (Basel, Switzerland) · 2020
    Article
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 1 institution in 2 countries.

Sheng WangDepartment of Biochemistry, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada.
Ling CaoDepartment of Biochemistry, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
Hong WangDepartment of Biochemistry, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada Hong.Wang@usask.ca.
University of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protein ubiquitination is critical for numerous processes in eukaryotes. The ubiquitin-conjugating enzyme (E2) is required for ubiquitination. The Arabidopsis genome has approximately 37 E2 genes, but in vivo functions for most of them remain unknown. In this study we observed that knockout mutants of Arabidopsis UBC22 had much-reduced silique length and seed number, with nearly 90% of ovules aborted. Analyses revealed that the majority of mutant embryo sacs displayed severe defects and often contained no gamete nuclei. There was no difference between mutant and wild-type Arabidopsis at the megaspore mother cell stage; however, the functional megaspore was either not present or appeared abnormal in a large portion of mutant ovules, suggesting that the defect started with functional megaspore degeneration in the mutants. Degeneration continued during megagametogenesis, such that the percentage of mature embryo sacs without any gamete nuclei was much greater than the percentage of developing ovules without a functional megaspore and, in addition, various abnormalities in megagametogenesis were observed. Additionally, heterozygous plants had only 13.1% of ovules aborted, indicating that the heterozygous sporophytic tissues could affect the development of the mutant female gametophyte. UBC22 is the sole member of an Arabidopsis E2 subfamily, and is more closely related to one type of E2s in animals that catalyzes Lys11-specific ubiquitination. Indeed, our results showed that Arabidopsis UBC22 could catalyze ubiquitin dimer formation in vitro in a Lys11-dependent manner, suggesting that it likely catalyzes Lys11-linked ubiquitination in plants. This study has thus identified one biochemical property of UBC22 and revealed a novel function in female gametophyte development.

Indexed as

Gene Expression Regulation, PlantArabidopsisArabidopsis ProteinsMutationOvulePhenotypeSeedsUbiquitinationUbiquitin-Conjugating EnzymesArabidopsis Proteinsubiquitin-conjugating enzyme 22, ArabidopsisUbiquitin-Conjugating EnzymesArabidopsisfemale gametophytefunctional megasporegametogenesisprotein ubiquitinationUBC22.ubiquitin-conjugating enzyme

Identifiers

PMID27069118
PMCPMC4892721
OpenAlexW2324663933

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Registered trials

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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.