Evidence map›Paper›PMID 11901114›Full record

ArticleGenetics2002

Identification and characterization of the genes encoding the core histones and histone variants of Neurospora crassa.

Shan M Hays, Johanna Swanson, Eric U Selker

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

24 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. A Translocation within thebioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. An ascomycete H4 variant with an unknown function.Royal Society open science · 2024
    Article
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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 1 country.

Shan M HaysDepartment of Biology and Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403-1229, USA.
Johanna Swanson
Eric U Selker
University of Oregon · US

Funding

MOLECULAR BIOLOGY AND BIOPHYSICST32GM007759 · NIGMS · UNIVERSITY OF OREGON · PI NOLEN, BRADLEY J · 1985 to 2021
$8.5M
Genetic Aspects of DNA MethylationR37GM035690 · NIGMS · UNIVERSITY OF OREGON · PI SELKER, ERIC U. · 2003 to 2012
$5.2M
GENETIC ASPECTS OF DNA METHYLATIONR01GM035690 · NIGMS · UNIVERSITY OF OREGON · PI SELKER, ERIC U. · 1986 to 2016
$3.3M
NIGMS NIH HHS GM-07759NIGMS NIH HHS GM-35690
6 · The paper itself

Abstract

We have identified and characterized the complete complement of genes encoding the core histones of Neurospora crassa. In addition to the previously identified pair of genes that encode histones H3 and H4 (hH3 and hH4-1), we identified a second histone H4 gene (hH4-2), a divergently transcribed pair of genes that encode H2A and H2B (hH2A and hH2B), a homolog of the F/Z family of H2A variants (hH2Az), a homolog of the H3 variant CSE4 from Saccharomyces cerevisiae (hH3v), and a highly diverged H4 variant (hH4v) not described in other species. The hH4-1 and hH4-2 genes, which are 96% identical in their coding regions and encode identical proteins, were inactivated independently. Strains with inactivating mutations in either gene were phenotypically wild type, in terms of growth rates and fertility, but the double mutants were inviable. As expected, we were unable to isolate null alleles of hH2A, hH2B, or hH3. The genomic arrangement of the histone and histone variant genes was determined. hH2Az and the hH3-hH4-1 gene pair are on LG IIR, with hH2Az centromere-proximal to hH3-hH4-1 and hH3 centromere-proximal to hH4-1. hH3v and hH4-2 are on LG IIIR with hH3v centromere-proximal to hH4-2. hH4v is on LG IVR and the hH2A-hH2B pair is located immediately right of the LG VII centromere, with hH2A centromere-proximal to hH2B. Except for the centromere-distal gene in the pairs, all of the histone genes are transcribed toward the centromere. Phylogenetic analysis of the N. crassa histone genes places them in the Euascomycota lineage. In contrast to the general case in eukaryotes, histone genes in euascomycetes are few in number and contain introns. This may be a reflection of the evolution of the RIP (repeat-induced point mutation) and MIP (methylation induced premeiotically) processes that detect sizable duplications and silence associated genes.

Indexed as

Amino Acid SequenceBlotting, SouthernChromosome MappingHistonesMolecular Sequence DataNeurospora crassaPhylogenySequence AlignmentSequence Analysis, DNAHistones

Identifiers

PMID11901114
PMCPMC1462028
OpenAlexW1925817726

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.