Evidence map›Paper›PMID 8103593›Full record

ArticleNucleic acids research1993

Cloning and regulation of the rat mdr2 gene.

P C Brown, S S Thorgeirsson, J A Silverman

Open access · greenAbstract read
In one paragraph

Article in Nucleic acids research, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.7field-weighted citation impact, top 5% 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

11 citing papers in PubMed, 79 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Localization of rat Pgy3 (mdr2) to the same region as Pgy2 (mdr1b) at 4q11-12.Mammalian genome : official journal of the International Mammalian Genome Society · 1996
    Article
  10. Article
  11. Review
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 2 institutions in 1 country.

P C BrownNational Institute of General Medical Sciences, National Institutes of Health, Bethesda, MD 20892.
S S Thorgeirsson
J A Silverman
National Institutes of Health · USNational Cancer Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have cloned the complete cDNA encoding the rat mdr2 gene by a combination of library screening and the polymerase chain reaction. The sequence of rat mdr2 cDNA is highly similar to other members of the mdr gene family but the initiation of transcription, tissue distribution and regulation of expression of rat mdr2 diverge from the other isoforms. Primer extension analysis showed rat mdr2 mRNA to have a major transcription start point at -277 and a minor one at approximately -518. We constructed gene specific probes for rat mdr2 and mdr1b and compared the expression patterns of these two genes. The highest expression of mdr2 mRNA was in the muscle, heart, liver and spleen. Both mdr2 and 1b mRNA levels were elevated in the livers of rats treated with CCl4 or following partial hepatectomies although the time course of induction of each gene differed. Mdr1b increased by 12 to 24 hours while mdr2 did not increase until 48 hours. Treatment of isolated hepatocytes or RC3 cells with cycloheximide did not effect mdr2 mRNA. In contrast, mdr1b expression was increased. These data suggest that rat mdr2, unlike mdr1b, is not regulated by a negative trans-acting protein factor.

Indexed as

Gene Expression RegulationAmino Acid SequenceAnimalsATP Binding Cassette Transporter, Subfamily B, Member 1Base SequenceCarbon TetrachlorideCarrier ProteinsCloning, MolecularCycloheximideDNAHumansLiverLiver RegenerationMembrane GlycoproteinsMolecular Sequence DataOrgan SpecificityATP Binding Cassette Transporter, Subfamily B, Member 1Carbon TetrachlorideCarrier ProteinsCycloheximideDNAMembrane Glycoproteins

Identifiers

PMID8103593
PMCPMC309915
OpenAlexW1996945836

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.