Evidence map›Paper›PMID 8094559›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1993

Calphotin: a Drosophila photoreceptor cell calcium-binding protein.

J H Martin, S Benzer, M Rudnicka, C A Miller

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

13 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
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  8. Compartmentalization and Ca2+ buffering are essential for prevention of light-induced retinal degeneration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
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  13. A Drosophila photoreceptor cell-specific protein, calphotin, binds calcium and contains a leucine zipper.Proceedings of the National Academy of Sciences of the United States of America · 1993
    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

4 authors at 1 institution in 1 country.

J H MartinDepartment of Pathology, University of Southern California School of Medicine, Los Angeles 90033.
S Benzer
M Rudnicka
C A Miller
University of Southern California · US

Funding

VASCULAR RISK AND COGNITIVE STATUS IN A LATINO POPULATIONP50AG005142 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ARANDA, MARIA P. · 1985 to 2019
$41.0M
HUMAN RETINAL HOMOLOGS OF DROSOPHILA EYE GENESR01EY009278 · NEI · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI BENZER, SEYMOUR · 1991 to 2000
$298k
MENTAL ILLNESS IN ALZHEIMER'S DISEASE OF THE AGEDR01MH039145 · NIMH · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MILLER, CAROL A · 1985 to 1988
–
MENTAL ILLNESS IN ALZHEIMERS DISEASE OF THE AGEDR37MH039145 · NIMH · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MILLER, CAROL A · 1989 to 1998
–
NEI NIH HHS EYO9278NIA NIH HHS AGO5142NIMH NIH HHS MH39145
6 · The paper itself

Abstract

Monoclonal antibody 23E9 identifies a calcium-binding protein, calphotin, in photoreceptor cells of the Drosophila melanogaster compound eyes and ocelli. The antigen is restricted to a defined cytoplasmic region; it is not present in the rhabdomeres, nuclei, mitochondria, or rough endoplasmic reticulum. A corresponding cDNA recognizes a 3-kb mRNA with retinal specificity similar to the antigen and maps to band 86E/F-87A/B on chromosome 3. An open reading frame of 2595 bp encodes an estimated 85-kDa protein of unusual amino acid composition, with > 50% proline, alanine, and valine and very few basic residues. The C-terminal segment contains a leucine zipper motif uninterrupted by prolines. We found no significant similarities with the GenBank or National Biomedical Resource Foundation data bases. The location of the protein within a distinct cytoplasmic region suggests that it might function as a calcium-sequestering "sponge" to regulate the amount of free cytoplasmic calcium.

Indexed as

Drosophila ProteinsInsect ProteinsAmino Acid SequenceAnimalsAntibodies, MonoclonalBase SequenceBlotting, NorthernCalciumCalcium-Binding ProteinsDatabases, FactualDrosophila melanogasterGene LibraryImmunoblottingInsect HormonesIn Situ HybridizationLeucine ZippersAntibodies, MonoclonalCalciumCalcium-Binding ProteinsCpn protein, DrosophilaDrosophila ProteinsInsect HormonesInsect ProteinsPoly ARNA, Messenger

Identifiers

PMID8094559
PMCPMC45908
OpenAlexW2076155535

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.