Evidence map›Paper›PMID 8531201›Full record

ArticleThe Journal of membrane biology1995

Ca(2+)-activated K+ channels of human and rabbit erythrocytes display distinctive patterns of inhibition by venom peptide toxins.

C Brugnara, C C Armsby, L De Franceschi, M Crest, M F Euclaire, S L Alper

Abstract read
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In one paragraph

Article in The Journal of membrane biology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. The hSK4 (KCNN4) isoform is the Ca2+-activated K+ channel (Gardos channel) in human red blood cells.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  9. Article
  10. Article
  11. Article
  12. A human intermediate conductance calcium-activated potassium channel.Proceedings of the National Academy of Sciences of the United States of America · 1997
    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 5 institutions in 3 countries.

C BrugnaraDepartments of Pathology and Laboratory Medicine, Children's Hospital, Boston, MA 02115, USA.
C C Armsby
L De Franceschi
M Crest
M F Euclaire
S L Alper
Boston Children's Hospital · USBeth Israel Deaconess Hospital · USBioénergétique et Ingénierie des Protéines · FRCentre National de la Recherche Scientifique · FRUniversity of Verona · IT

Funding

TREATMENT OF SICKLE CELL ANEMIAP60HL015157 · NHLBI · BOSTON MEDICAL CENTER · PI MCMAHON, LILLIAN E · 1985 to 2002
$5.4M
NHLBI NIH HHS HL-15157
6 · The paper itself

Abstract

Despite recent progress in the molecular characterization of high-conductance Ca(2+)-activated K+ (maxi-K) channels, the molecular identities of intermediate conductance Ca(2+)-activated K+ channels, including that of mature erythrocytes, remains unknown. We have used various peptide toxins to characterize the intermediate conductance Ca(2+)-activated K+ channels (Gardos pathway) of human and rabbit red cells. With studies on K+ transport and on binding of 125I-charybdotoxin (ChTX) and 125I-kaliotoxin (KTX) binding in red cells, we provide evidence for the distinct nature of the red cell Gardos channel among described Ca(2+)-activated K+ channels based on (i) the characteristic inhibition and binding patterns produced by ChTX analogues, iberiotoxin (IbTX) and IbTX-like ChTX mutants, and KTX (1-37 and 1-38 variants); (ii) the presence of some properties heretofore attributed only to voltage-gated channels, including inhibition of K transport by margatoxin (MgTX) and by stichodactyla toxin (StK); (iii) and the ability of scyllatoxin (ScyTX) and apamin to displace bound 125I-charybdotoxin, a novel property for K+ channels. These unusual pharmacological characteristics suggest a unique structure for the red cell Gardos channel.

Indexed as

Potassium Channel BlockersAnimalsCalciumCharybdotoxinErythrocytesHumansIn Vitro TechniquesIon TransportKineticsNeurotoxinsPeptidesPoint MutationPotassiumPotassium ChannelsRabbitsRubidiumCalciumCharybdotoxiniberiotoxinkaliotoxinleiurotoxin ImargatoxinNeurotoxinsPeptidesPotassiumPotassium Channel BlockersPotassium ChannelsRubidiumScorpion Venoms

Identifiers

PMID8531201
OpenAlexW2085863297

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.