Evidence map›Paper›PMID 15803652›Full record

ArticleArchaea (Vancouver, B.C.)2002

Functional organization of a single nif cluster in the mesophilic archaeon Methanosarcina mazei strain Gö1.

Claudia Ehlers, Katharina Veit, Gerhard Gottschalk, Ruth A Schmitz

Open access · hybridAbstract read
In one paragraph

Article in Archaea (Vancouver, B.C.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Expression of V-nitrogenase and Fe-nitrogenase inApplied and environmental microbiology · 2023
    Article
  10. Article
  11. Newly Established Genetic System for Functional Analysis of MetSV.International journal of molecular sciences · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Evolution and Functional Analysis ofInternational journal of molecular sciences · 2019
    Article
  16. Article
  17. sRNARNA biology · 2017
    Article
  18. Review
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Claudia EhlersAbteilung Allgemeine Mikrobiologie, Institut für Mikrobiologie und Genetik der Georg-August-Universität, Grisebachstr 8, 37077 Göttingen, Germany.
Katharina Veit
Gerhard Gottschalk
Ruth A Schmitz
University of Göttingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mesophilic methanogenic archaeon Methanosarcina mazei strain Gö1 is able to utilize molecular nitrogen (N2) as its sole nitrogen source. We have identified and characterized a single nitrogen fixation (nif) gene cluster in M. mazei Gö1 with an approximate length of 9 kbp. Sequence analysis revealed seven genes with sequence similarities to nifH, nifI1, nifI2, nifD, nifK, nifE and nifN, similar to other diazotrophic methanogens and certain bacteria such as Clostridium acetobutylicum, with the two glnB-like genes (nifI1 and nifI2) located between nifH and nifD. Phylogenetic analysis of deduced amino acid sequences for the nitrogenase structural genes of M. mazei Gö1 showed that they are most closely related to Methanosarcina barkeri nif2 genes, and also closely resemble those for the corresponding nif products of the gram-positive bacterium C. acetobutylicum. Northern blot analysis and reverse transcription PCR analysis demonstrated that the M. mazei nif genes constitute an operon transcribed only under nitrogen starvation as a single 8 kb transcript. Sequence analysis revealed a palindromic sequence at the transcriptional start site in front of the M. mazei nifH gene, which may have a function in transcriptional regulation of the nif operon.

Indexed as

Genes, ArchaealMultigene FamilyAmino Acid SequenceArchaeal ProteinsBase SequenceCodonDNA, ArchaealDNA PrimersMethanosarcinaMolecular Sequence DataNitrogen FixationPhylogenyRestriction MappingReverse Transcriptase Polymerase Chain ReactionSequence AlignmentTATA BoxArchaeal ProteinsCodonDNA, ArchaealDNA Primers

Identifiers

PMID15803652
PMCPMC2685556
OpenAlexW2061700800

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.