Evidence map›Paper›PMID 6594709›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1984

Molecular cloning and sequence determination of rat preproenkephalin cDNA: sensitive probe for studying transcriptional changes in rat tissues.

R D Howells, D L Kilpatrick, R Bhatt, J J Monahan, M Poonian, S Udenfriend

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1984. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 191 citations in OpenAlex.

  1. Article
  2. Untangling the complexity of opioid receptor function.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Review
  3. Article
  4. Article
  5. Maternal deprivation increases vulnerability to morphine dependence and disturbs the enkephalinergic system in adulthood.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2005
    Article
  6. Article
  7. Neurotensin-deficient mice show altered responses to antipsychotic drugs.Proceedings of the National Academy of Sciences of the United States of America · 2001
    Article
  8. Article
  9. Article
  10. Article
  11. Differential regulation of neuropeptide mRNA expression in intrastriatal striatal transplants by host dopaminergic afferents.Proceedings of the National Academy of Sciences of the United States of America · 1992
    Article
  12. Proenkephalin products are stored in the sperm acrosome and may function in fertilization.Proceedings of the National Academy of Sciences of the United States of America · 1990
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Differential expression of opioid peptide genes by testicular germ cells and somatic cells.Proceedings of the National Academy of Sciences of the United States of America · 1987
    Article
  20. Cellular localization of proenkephalin mRNA in rat brain: gene expression in the caudate-putamen and cerebellar cortex.Proceedings of the National Academy of Sciences of the United States of America · 1986
    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 1 institution in 1 country.

R D Howells
D L Kilpatrick
R Bhatt
J J Monahan
M Poonian
S Udenfriend
Roche (Sweden) · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A cDNA probe was prepared to investigate the regulation of proenkephalin biosynthesis in the rat. This was necessary because human and bovine proenkephalin cDNA were not sensitive enough for the accurate detection of preproenkephalin mRNA in tissues that contain low copy numbers of this message, such as the adrenal gland. The rat probe was prepared in the following manner. Preproenkephalin mRNA was enriched by sucrose gradient centrifugation of poly(A)-containing mRNA from rat brain and was used as a template for double-stranded cDNA synthesis. The resulting cDNA was inserted into the plasmid pBR322, and recombinant plasmids were used to transform Escherichia coli RR1 cells. A synthetic oligodeoxyribonucleotide (30 bases long) with a sequence that had previously been shown to be identical in bovine and human preproenkephalin cDNA was prepared to screen the clone bank. The plasmid with the longest cDNA insert (about 1200 bases) from the positive clones was isolated, and the sequence of the entire protein coding region was determined. Like the bovine and human gene products, rat preproenkephalin contains four [Met]enkephalin sequences and one copy each of [Leu]enkephalin, [Met]enkephalin-Arg6-Gly7-Leu8, and [Met]enkephalin-Arg6-Phe7. Rat preproenkephalin is 80% and 83% homologous to the bovine and human forms, respectively, at the nucleotide level and is 82% homologous to both species at the amino acid level. Rat preproenkephalin contains 269 amino acid residues, making it larger than the human (267 residues) and bovine (263 residues) precursors. The sensitivity for detection of rat preproenkephalin mRNA with the rat cDNA was several times greater than with the corresponding cDNAs from bovine and human sources.

Indexed as

Cloning, MolecularTranscription, GeneticAmino Acid SequenceAnimalsBase SequenceBrainCattleDNAEnkephalinsGenesHumansMaleProtein PrecursorsRatsRats, Inbred F344RNA, MessengerDNAEnkephalinspreproenkephalinproenkephalinProtein PrecursorsRNA, Messenger

Identifiers

PMID6594709
PMCPMC392206
OpenAlexW1978572562

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.