Evidence map›Paper›PMID 21685395›Full record

ArticleThe Journal of biological chemistry2011

Dynamic changes in binding of immunoglobulin heavy chain 3' regulatory region to protein factors during class switching.

Sanjukta Chatterjee, Zhongliang Ju, Rabih Hassan, Sabrina A Volpi, Alexander V Emelyanov, Barbara K Birshtein

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

20 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Nuclear Receptors, Ligands and the Mammalian B Cell.International journal of molecular sciences · 2020
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. 3'Oncotarget · 2018
    Article
  10. Oncotarget · 2018
    Article
  11. Article
  12. Article
  13. Long-Range Regulation of V(D)J Recombination.Advances in immunology · 2015
    Review
  14. IgH chain class switch recombination: mechanism and regulation.Journal of immunology (Baltimore, Md. : 1950) · 2014
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  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

6 authors at 1 institution in 1 country.

Sanjukta ChatterjeeDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461.
Zhongliang JuDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461.
Rabih HassanDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461.
Sabrina A VolpiDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461.
Alexander V EmelyanovDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461.
Barbara K BirshteinDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461. Electronic address: barbara.birshtein@einstein.yu.edu.
Albert Einstein College of Medicine · US

Funding

WORD PROCESSORP30CA013330 · NCI · YESHIVA UNIVERSITY · PI THOMAS E ROHAN · 1985 to 2026
$111.2M
CELLULAR AND STRUCTURAL STUDIES OF MYELOMA MUTANTSR01AI013509 · NIAID · YESHIVA UNIVERSITY · PI BIRSHTEIN, BARBARA · 1985 to 2009
$2.9M
CELLULAR AND STRUCTURAL STUDIES OF MYELOMA MUTANTSR37AI013509 · NIAID · YESHIVA UNIVERSITY · PI BIRSHTEIN, BARBARA · 1989 to 1998
–
NCI NIH HHS P30 CA013330NCI NIH HHS P30 CA13330NIAID NIH HHS AI13509NIAID NIH HHS R01 AI013509NIAID NIH HHS R37 AI013509
6 · The paper itself

Abstract

The 3' regulatory region (3' RR) of the Igh locus works at long distances on variable region (V(H)) and switch region (I) region promoters to initiate germ line (non-coding) transcription (GT) and promote class switch recombination (CSR). The 3' RR contains multiple elements, including enhancers (hs3a, hs1.2, hs3b, and hs4) and a proposed insulator region containing CTCF (CCCTC-binding factor) binding sites, i.e. hs5/6/7 and the downstream region ("38"). Notably, deletion of each individual enhancer (hs3a-hs4) has no significant phenotypic consequence, suggesting that the 3' RR has considerable structural flexibility in its function. To better understand how the 3' RR functions, we identified transcription factor binding sites and used chromatin immunoprecipitation (ChIP) assays to monitor their occupancy in splenic B cells that initiate GT and undergo CSR (LPS±IL4), are deficient in GT and CSR (p50(-/-)), or do not undergo CSR despite efficient GT (anti-IgM+IL4). Like 3' RR enhancers, hs5-7 and the 38 region were observed to contain multiple Pax5 binding sites (in addition to multiple CTCF sites). We found that the Pax5 binding profile to the 3' RR dynamically changed during CSR independent of the specific isotype to which switching was induced, and binding focused on hs1.2, hs4, and hs7. CTCF-associated and CTCF-independent cohesin interactions were also identified. Our observations are consistent with a scaffold model in which a platform of active protein complexes capable of facilitating GT and CSR can be formed by varying constellations of 3' RR elements.

Indexed as

Models, BiologicalAnimalsB-LymphocytesCCCTC-Binding FactorImmunoglobulin Class SwitchingImmunoglobulin Heavy ChainsMiceMice, KnockoutPAX5 Transcription FactorRepressor ProteinsResponse ElementsSpleenCCCTC-Binding FactorCtcf protein, mouseImmunoglobulin Heavy ChainsPax5 protein, mousePAX5 Transcription FactorRepressor Proteins

Identifiers

PMID21685395
PMCPMC3190736
OpenAlexW2021467291

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.