Evidence map›Paper›PMID 8035827›Full record

ArticleMolecular and cellular biology1994

Hierarchical phosphorylation at N-terminal transformation-sensitive sites in c-Myc protein is regulated by mitogens and in mitosis.

B Lutterbach, S R Hann

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

105 citing papers in PubMed, 213 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Targeting Transcription Factors in Cancer: From "Undruggable" to "Druggable".Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Mission Possible: Advances in MYC Therapeutic Targeting in Cancer.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2019
    Review
  20. Review

45 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

B LutterbachDepartment of Cell Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-2175.
S R Hann
Vanderbilt University · US

Funding

MULTIDISCIPLINARY TRAINING IN MOLECULAR ENDOCRINOLOGYT32DK007563 · NIDDK · VANDERBILT UNIVERSITY · PI Richard M O'Brien · 1988 to 2026
$15.9M
TWO C-MYC PROTEINS--ROLE IN CELL GROWTH &ONCOGENESISR01CA047399 · NCI · VANDERBILT UNIVERSITY · PI HANN, STEPHEN RAY · 1988 to 2005
$1.7M
NCI NIH HHS CA-47399NIDDK NIH HHS 5T32DK07563-06
6 · The paper itself

Abstract

The N-terminal domain of the c-Myc protein has been reported to be critical for both the transactivation and biological functions of the c-Myc proteins. Through detailed phosphopeptide mapping analyses, we demonstrate that there is a cluster of four regulated and complex phosphorylation events on the N-terminal domain of Myc proteins, including Thr-58, Ser-62, and Ser-71. An apparent enhancement of Ser-62 phosphorylation occurs on v-Myc proteins having a mutation at Thr-58 which has previously been correlated with increased transforming ability. In contrast, phosphorylation of Thr-58 in cells is dependent on a prior phosphorylation of Ser-62. Hierarchical phosphorylation of c-Myc is also observed in vitro with a specific glycogen synthase kinase 3 alpha, unlike the promiscuous phosphorylation observed with other glycogen synthase kinase 3 alpha and 3 beta preparations. Although both p42 mitogen-activated protein kinase and cdc2 kinase specifically phosphorylate Ser-62 in vitro and cellular phosphorylation of Thr-58/Ser-62 is stimulated by mitogens, other in vivo experiments do not support a role for these kinases in the phosphorylation of Myc proteins. Unexpectedly, both the Thr-58 and Ser-62 phosphorylation events, but not other N-terminal phosphorylation events, can occur in the cytoplasm, suggesting that translocation of the c-Myc proteins to the nucleus is not required for phosphorylation at these sites. In addition, there appears to be an unusual block to the phosphorylation of Ser-62 during mitosis. Finally, although the enhanced transforming properties of Myc proteins correlates with the loss of phosphorylation at Thr-58 and an enhancement of Ser-62 phosphorylation, these phosphorylation events do not alter the ability of c-Myc to transactivate through the CACGTG Myc/Max binding site.

Indexed as

MitosisAmino Acid SequenceAnimalsCell LineCell NucleusChick EmbryoCoturnixCytoplasmMitogensMolecular Sequence DataPhosphorylationPhosphoserinePhosphothreonineProtein Serine-Threonine KinasesProto-Oncogene Proteins c-mycTranscriptional ActivationMitogensPhosphoserinePhosphothreonineProtein Serine-Threonine KinasesProto-Oncogene Proteins c-myc

Identifiers

PMID8035827
PMCPMC359071
OpenAlexW1963016133

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.