Evidence map›Paper›PMID 9511930›Full record

ReviewJournal of bioenergetics and biomembranes1997

Probing the structural and functional domains of the CFTR chloride channel.

M H Akabas, M Cheung, R Guinamard

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of bioenergetics and biomembranes, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

4 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. CpABC, a Cryptosporidium parvum ATP-binding cassette protein at the host-parasite boundary in intracellular stages.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

3 authors at 1 institution in 1 country.

M H AkabasDepartment of Physiology, Columbia University, New York, NY 10032, USA.
M Cheung
R Guinamard
Columbia University · US

Funding

STRUCTURE OF GABA-A RECEPTOR ANION-SELECTIVE CHANNELR01NS030808 · NINDS · YESHIVA UNIVERSITY · PI AKABAS, MYLES H. · 1994 to 2011
$4.2M
CFTR ANION SELECTIVE CHANNEL--STRUCTURE AND FUNCTIONR01DK051794 · NIDDK · YESHIVA UNIVERSITY · PI AKABAS, MYLES H · 1997 to 2000
$240k
NIDDK NIH HHS DK51794NINDS NIH HHS NS30808
6 · The paper itself

Abstract

The cystic fibrosis transmembrane conductance regulator (CFTR) forms an anion-selective channel involved in epithelial chloride transport. Recent studies have provided new insights into the structural determinants of the channel's functional properties, such as anion selectivity, single-channel conductance, and gating. Using the scanning-cysteine-accessibility method we identified 7 residues in the M1 membrane-spanning segment and 11 residues in and flanking the M6 segment that are exposed on the water-accessible surface of the protein; many of these residues may line the ion-conducting pathway. The pattern of the accessible residues suggests that these segments have a largely alpha-helical secondary structure with one face exposed in the channel lumen. Our results suggest that the residues at the cytoplasmic end of the M6 segment loop back into the channel, narrowing the lumen, and thereby forming both the major resistance to ion movement and the charge-selectivity filter.

Indexed as

Protein Structure, TertiaryATP-Binding Cassette TransportersChloride ChannelsCystic Fibrosis Transmembrane Conductance RegulatorHumansModels, MolecularProtein Structure, SecondaryStructure-Activity RelationshipATP-Binding Cassette TransportersCFTR protein, humanChloride ChannelsCystic Fibrosis Transmembrane Conductance Regulator

Identifiers

PMID9511930
OpenAlexW152084828

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.