Evidence map›Paper›PMID 19487560›Full record

ArticleGenetics2009

Domains of heterochromatin protein 1 required for Drosophila melanogaster heterochromatin spreading.

Karrie A Hines, Diane E Cryderman, Kaitlin M Flannery, Hongbo Yang, Michael W Vitalini, Tulle Hazelrigg, Craig A Mizzen, Lori L Wallrath

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Induction of H3K9me3 and DNA methylation by tethered heterochromatin factors inProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. Histone variants and epigenetics.Cold Spring Harbor perspectives in biology · 2015
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Chromatin higher-order structure and dynamics.Cold Spring Harbor perspectives in biology · 2010
    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

8 authors at 3 institutions in 1 country.

Karrie A HinesDepartment of Biochemistry, University of Iowa, Iowa City, 52242, USA.
Diane E Cryderman
Kaitlin M Flannery
Hongbo Yang
Michael W Vitalini
Tulle Hazelrigg
Craig A Mizzen
Lori L Wallrath
University of Iowa · USUniversity of Illinois Urbana-Champaign · USColumbia University · US

Funding

UPGRADE OF COMMUNICATIONS INFRASTRUCTURET34GM008574 · NIGMS · SAN FRANCISCO STATE UNIVERSITY · PI BAYLISS, FRANK T, ESQUERRA, RAYMOND M. · 1996 to 2021
$14.5M
Mechanisms of Gene SilencingR01GM061513 · NIGMS · UNIVERSITY OF IOWA · PI WALLRATH, LORI L · 2001 to 2009
$2.5M
NIGMS NIH HHS GM08574NIGMS NIH HHS GM61513NIGMS NIH HHS R01 GM061513NIGMS NIH HHS T34 GM008574
6 · The paper itself

Abstract

Centric regions of eukaryotic genomes are packaged into heterochromatin, which possesses the ability to spread along the chromosome and silence gene expression. The process of spreading has been challenging to study at the molecular level due to repetitious sequences within centric regions. A heterochromatin protein 1 (HP1) tethering system was developed that generates "ectopic heterochromatin" at sites within euchromatic regions of the Drosophila melanogaster genome. Using this system, we show that HP1 dimerization and the PxVxL interaction platform formed by dimerization of the HP1 chromo shadow domain are necessary for spreading to a downstream reporter gene located 3.7 kb away. Surprisingly, either the HP1 chromo domain or the chromo shadow domain alone is sufficient for spreading and silencing at a downstream reporter gene located 1.9 kb away. Spreading is dependent on at least two H3K9 methyltransferases, with SU(VAR)3-9 playing a greater role at the 3.7-kb reporter and dSETDB1 predominately acting at the 1.9 kb reporter. These data support a model whereby HP1 takes part in multiple mechanisms of silencing and spreading.

Indexed as

AnimalsChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneDrosophila melanogasterDrosophila ProteinsGene SilencingGenes, ReporterHeterochromatinMethodsMethyltransferasesProtein MultimerizationProtein Structure, TertiaryChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneDrosophila ProteinsHeterochromatinMethyltransferases

Identifiers

PMID19487560
PMCPMC2728884
OpenAlexW2151479824

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.