Evidence map›Paper›PMID 1498612›Full record

ArticleThe Plant cell1992

Internal editing of the maize chloroplast ndhA transcript restores codons for conserved amino acids.

R M Maier, B Hoch, P Zeltz, H Kössel

Abstract read
In one paragraph

Article in The Plant cell, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed.

  1. Chloroplast Genome Diversity and Marker Potentials of DiverseInternational journal of molecular sciences · 2025
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  18. Occurrence of plastid RNA editing in all major lineages of land plants.Proceedings of the National Academy of Sciences of the United States of America · 1997
    Article
  19. Article
  20. Review
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

4 authors.

R M MaierInstitut für Biologie III, Universität Freiburg, Germany.
B Hoch
P Zeltz
H Kössel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The NADH dehydrogenase subunit A (ndhA) gene from maize chloroplasts encodes a highly conserved peptide, which at several positions could be restored to consensus sequences by potential C-to-U editing of the codons involved. This gene was, therefore, chosen for analysis of its mRNA sequence in the form of amplified cDNA. A comparison of this cDNA sequence with the plastome-encoded ndhA sequence reveals four C-to-U editing sites, thereby demonstrating as a novel finding that chloroplast editing can also affect internal mRNA positions. All the edited codons restore amino acids that are conserved in the ndhA-encoded peptides of other chloroplast species. Alignment with homologous mitochondrial NADH-ubiquinone reductase subunit 1 (nad1) sequences of plant and even nonplant species shows that two of the editing positions restore universally conserved amino acids and that one editing site is even shared with nad1 mRNA of plant mitochondria. No editing sites could be detected in the cDNA derived from transcripts of the maize chloroplast RNA polymerase alpha-subunit (rpoA) gene.

Indexed as

RNA Processing, Post-TranscriptionalAmino Acid SequenceBase SequenceChloroplastsCodonDNAHumansMitochondriaMolecular Sequence DataNADH DehydrogenasePolymerase Chain ReactionRNA Polymerase ISequence Homology, Nucleic AcidTranscription, GeneticZea maysCodonDNANADH DehydrogenaseRNA Polymerase I

Identifiers

PMID1498612
PMCPMC160157

What OpenQuestion holds

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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.