Evidence map›Paper›PMID 11781086›Full record

ArticleBiochemistry2002

alpha-Crystallin chaperone-like activity and membrane binding in age-related cataracts.

Brian A Cobb, J Mark Petrash

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

51 citing papers in PubMed, 104 citations in OpenAlex.

  1. Review
  2. Preventing Age-Related Nuclear Cataract Development - Is Cholesterol the Key?Investigative ophthalmology & visual science · 2026
    Review
  3. Article
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  10. Interaction of βInternational journal of molecular sciences · 2023
    Article
  11. Binding of βInternational journal of molecular sciences · 2023
    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

2 authors.

Brian A CobbDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
J Mark Petrash

Funding

WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Michael Benjamin Major · 2013 to 2026
$27.1M
TRANSGENICS COREP60DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI SCHAFFER, JEAN E. · 1986 to 2012
$25.2M
WASHINGTON UNIVERSITY CENTER VISION RESEARCHP30EY002687 · NEI · WASHINGTON UNIVERSITY · PI Philip Andrew Ruzycki · 1985 to 2026
$18.4M
MOLECULAR INTERACTIONS OF ALPHA CRYSTALLINS IN THE EYEF31EY006901 · NEI · WASHINGTON UNIVERSITY · PI COBB, BRIAN A · 1998 to 2000
$19k
NEI NIH HHS EY02687NEI NIH HHS EY06901NEI NIH HHS EY50673NEI NIH HHS F31 EY006901NEI NIH HHS P30 EY002687NIDDK NIH HHS DK20579NIDDK NIH HHS P30 DK020579NIDDK NIH HHS P60 DK020579
6 · The paper itself

Abstract

alpha-Crystallin, the major protein component of the vertebrate lens, is thought to play a critical role in the maintenance of transparency through its ability to inhibit stress-induced protein aggregation. However, during aging and cataract formation the amount of membrane-bound alpha-crystallin increases significantly while high molecular weight complexes (HMWCs) comprised of alpha-crystallin and other lens crystallins accumulate. These and other recent data suggest a possible link between cataract formation, the formation of high molecular weight alpha-crystallin aggregates, and the progressive increase in membrane association of alpha-crystallin. To better understand these processes, we characterized the chaperone-like activity (CLA) and subunit exchange of membrane bound alpha-crystallin. In addition, we measured the membrane binding properties of in vitro constituted HMWCs to understand the mechanism by which increased alpha-crystallin is bound to the membrane of old and cataractous lens cells in vivo. Membrane-associated alpha-crystallin complexes have measurably reduced CLA compared to complexes in solution; however, membrane binding does not alter the time required for alpha-crystallin complexes to reach subunit exchange equilibrium. In addition, HMWCs prepared in vitro have a profoundly increased membrane binding capacity as compared to native alpha-crystallin. These results are consistent with a model in which increased membrane binding of alpha-crystallin is an integral step in the pathogenesis of many forms of cataracts.

Indexed as

Aging1,2-DipalmitoylphosphatidylcholineAnimalsCataractCattleCell MembraneChromatography, High Pressure LiquidCrystallinsCytoplasmDose-Response Relationship, DrugFluorescent DyesHumansLens, CrystallineLipid MetabolismModels, BiologicalMolecular Chaperones1,2-DipalmitoylphosphatidylcholineCrystallinsFluorescent DyesMolecular ChaperonesRecombinant ProteinsSphingomyelins

Identifiers

PMID11781086
PMCPMC2902969
OpenAlexW2093123640

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.