Evidence map›Paper›PMID 21597263›Full record

ArticleCells, tissues, organs2011

Cryogenic transmission electron microscopy study of amelogenin self-assembly at different pH.

Ping-An Fang, Henry C Margolis, James F Conway, James P Simmer, Gary H Dickinson, Elia Beniash

Open access · bronzeAbstract read
In one paragraph

Article in Cells, tissues, organs, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 26% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Amelogenin-Derived Peptides in Bone Regeneration: A Systematic Review.International journal of molecular sciences · 2021
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Role of amelogenin phosphorylation in regulating dental enamel formation.Matrix biology : journal of the International Society for Matrix Biology · 2024
    Article
  8. Article
  9. Minimal amelogenin domain for enamel formation.JOM (Warrendale, Pa. : 1989) · 2021
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Protein-mediated enamel mineralization.Frontiers in bioscience (Landmark edition) · 2012
    Review
  17. Article
  18. 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

6 authors at 2 institutions in 1 country.

Ping-An FangDepartment of Oral Biology, Center for Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, USA.
Henry C Margolis
James F Conway
James P Simmer
Gary H Dickinson
Elia Beniash
University of Pittsburgh · USHarvard University Press · US

Funding

Matrix Protein Regulation of Enamel Mineral FormationR01DE016376 · NIDCR · FORSYTH INSTITUTE · PI MARGOLIS, HENRY C · 2005 to 2009
$2.2M
Formation of the Enamel-Dentin InterfaceR01DE016703 · NIDCR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BENIASH, ELIA · 2006 to 2010
$1.4M
NIDCR NIH HHS R01 DE016376NIDCR NIH HHS R01DE016376NIDCR NIH HHS R01 DE016703NIDCR NIH HHS R01DE016703
6 · The paper itself

Abstract

Cryogenic transmission electron microscopy (cryo-EM) was used to explore the self-assembly of recombinant murine amelogenin (rM179) in vitro. Our cryo-EM data showed that amelogenin self-assembly is a strongly pH-dependent process. At pH 4.4 the main fraction of the protein exists in a monomeric form, although some peculiar structures consisting of chains of monomers were also observed. At pH 5.8 large nanospheres comprising ring-like structures ~50 nm in diameter were the most abundant particle class. Similarly, at pH 8.0 amelogenins self-assembled into ring-like oligomers of different sizes, which subsequently assembled into nanospheres 15-20 nm in diameter. Furthermore, at pH 7.2, which is close to a physiological pH, branched chains of nanospheres were observed. Our results show that amelogenin assembly is a multistep hierarchical process and provides new insight into the control of enamel mineralization.

Indexed as

Cryoelectron MicroscopyAmelogeninAnimalsHydrogen-Ion ConcentrationMiceMicroscopy, Electron, TransmissionNanospheresProtein Structure, QuaternaryTime FactorsAmelogenin

Identifiers

PMID21597263
PMCPMC3178075
OpenAlexW2052109998

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.