Evidence map›Paper›PMID 3097245›Full record

ArticleThe Journal of general physiology1986

Electrophysiological study of Drosophila rhodopsin mutants.

E C Johnson, W L Pak

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 1986. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Light-induced translocation of Drosophila visual Arrestin2 depends on Rac2.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  10. Article
  11. Presynaptic calcium channel localization and calcium-dependent synaptic vesicle exocytosis regulated by the Fuseless protein.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2008
    Article
  12. Article
  13. Phototransduction and retinal degeneration in Drosophila.Pflugers Archiv : European journal of physiology · 2007
    Review
  14. Article
  15. Article
  16. Retrograde signaling from the brain to the retina modulates the termination of the light response in Drosophila.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  17. Novel dominant rhodopsin mutation triggers two mechanisms of retinal degeneration and photoreceptor desensitization.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2004
    Article
  18. Article
  19. Phenotypes of trpl mutants and interactions between the transient receptor potential (TRP) and TRP-like channels in Drosophila.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2000
    Article
  20. INAF, a protein required for transient receptor potential Ca(2+) channel function.Proceedings of the National Academy of Sciences of the United States of America · 1999
    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

2 authors at 1 institution in 1 country.

E C Johnson
W L Pak
Purdue University West Lafayette · US

Funding

MOLECULAR GENETIC DISSECTION OF PHOTORECEPTOR FUNCTIONR01EY000033 · NEI · PURDUE UNIVERSITY WEST LAFAYETTE · PI PAK, WILLIAM L · 1985 to 2008
$3.7M
Molecular Genetic Dissection of Photoreceptor FunctionR56EY000033 · NEI · PURDUE UNIVERSITY · PI PAK, WILLIAM L · 2009 to 2009
$343k
MOLECULAR GENETIC DISSECTION OF PHOTORECEPTOR FUNCTIONR37EY000033 · NEI · PURDUE UNIVERSITY WEST LAFAYETTE · PI PAK, WILLIAM L · 1990 to 1999
–
VISUAL PHYSIOLOGY AND CHEMISTRYT32EY007008 · NEI · PURDUE UNIVERSITY WEST LAFAYETTE · PI OSTROY, SANFORD E · 1985 to 1989
–
NEI NIH HHS EY00033NEI NIH HHS EY07008
6 · The paper itself

Abstract

Electrophysiological investigations were carried out on several independently isolated mutants of the ninaE gene, which encodes opsin in R1-6 photoreceptors, and a mutant of the ninaD gene, which is probably important in the formation of the rhodopsin chromophore. In these mutants, the rhodopsin content in R1-6 photoreceptors is reduced by 10(2)-10(6)-fold. Light-induced bumps recorded from even the most severely affected mutants are physiologically normal. Moreover, a detailed noise analysis shows that photoreceptor responses of both a ninaE mutant and a ninaD mutant follow the adapting bump model. Since any extensive rhodopsin-rhodopsin interactions are not likely in these mutants, the above results suggest that such interactions are not needed for the generation and adaptation of light-induced bumps. Mutant bumps are strikingly larger in amplitude than wild-type bumps. This difference is observed both in ninaD and ninaE mutants, which suggests that it is due to severe depletion of rhodopsin content, rather than to any specific alterations in the opsin protein. Lowering or buffering the intracellular calcium concentration by EGTA injection mimics the effects of the mutations on the bump amplitude, but, unlike the mutations, it also affects the latency and kinetics of light responses.

Indexed as

AnimalsCalciumChelating AgentsDrosophilaEgtazic AcidElectric ConductivityElectricityElectrophysiologyInjectionsMutationPhotoreceptor CellsRetinal PigmentsRhodopsinCalciumChelating AgentsEgtazic AcidRetinal PigmentsRhodopsin

Identifiers

PMID3097245
PMCPMC2228850
OpenAlexW2055010534

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.