Evidence map›Paper›PMID 15772158›Full record

ArticleMolecular biology of the cell2005

Role of the NH2-terminal membrane spanning domain of multidrug resistance protein 1/ABCC1 in protein processing and trafficking.

Christopher J Westlake, Susan P C Cole, Roger G Deeley

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 76 citations in OpenAlex.

  1. Review
  2. Review
  3. The Structure and Mechanism of Drug Transporters.Methods in molecular biology (Clifton, N.J.) · 2021
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  17. Plant ABC Transporters.The arabidopsis book · 2011
    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

3 authors at 1 institution in 1 country.

Christopher J WestlakeDepartment of Biochemistry, Queen's University, Kingston, Ontario, Canada K7L 3N6.
Susan P C Cole
Roger G Deeley
Queen's University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multidrug resistance protein (MRP)1/ABCC1 transports organic anionic conjugates and confers resistance to cytotoxic xenobiotics. In addition to two membrane spanning domains (MSDs) typical of most ATP-binding cassette (ABC) transporters, MRP1 has a third MSD (MSD0) of unknown function. Unlike some topologically similar ABCC proteins, removal of MSD0 has minimal effect on function, nor does it prevent MRP1 from trafficking to basolateral membranes in polarized cells. However, we find that independent of cell type, the truncated protein accumulates in early/recycling endosomes. Using a real-time internalization assay, we demonstrate that MSD0 is important for MRP1 retention in, or recycling to, the plasma membrane. We also show that MSD0 traffics independently to the cell surface and promotes membrane localization of the core-region of MRP1 when the two protein fragments are coexpressed. Finally, we demonstrate that MSD0 becomes essential for trafficking of MRP1 when the COOH-terminal region of the protein is mutated. These studies demonstrate that MSD0 and the COOH-terminal region contain redundant trafficking signals, which only become essential when one or the other region is missing or is mutated. These data explain apparent differences in the trafficking requirement for MSD0 and the COOH-terminal region of MRP1 compared with other ABCC proteins.

Indexed as

Amino Acid SequenceAnimalsATP-Binding Cassette, Sub-Family C ProteinsBacterial ProteinsBase SequenceCell LineCell PolarityDNA, ComplementaryDogsGreen Fluorescent ProteinsHeLa CellsHumansLLC-PK1 CellsLuminescent ProteinsMiceMolecular Sequence DataATP-Binding Cassette, Sub-Family C ProteinsBacterial ProteinsCyan Fluorescent ProteinDNA, ComplementaryGreen Fluorescent ProteinsLuminescent Proteinsmultidrug resistance-associated protein 1Recombinant Fusion Proteinsyellow fluorescent protein, Bacteria

Identifiers

PMID15772158
PMCPMC1087251
OpenAlexW2094761998

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.