Evidence map›Paper›PMID 32345600›Full record

ArticleThe Journal of biological chemistry2020

The F-box protein FBXL16 up-regulates the stability of C-MYC oncoprotein by antagonizing the activity of the F-box protein FBW7.

Marion Morel, Krushangi N Shah, Weiwen Long

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Infection and immunity · 2025
    Article
  5. SKP1-CUL1-F-box: Key molecular targets affecting disease progression.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  6. Article
  7. Article
  8. Molecular insights and clinical implications for the tumor suppressor role of SCFBiochimica et biophysica acta. Reviews on cancer · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. F-box and leucine-rich repeat 6 promotes gastric cancer progressionWorld journal of gastrointestinal oncology · 2023
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. 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.

Marion MorelDepartment of Biochemistry and Molecular Biology, Wright State University, Dayton, Ohio.ORCID 0000-0002-1439-5360
Krushangi N ShahDepartment of Biochemistry and Molecular Biology, Wright State University, Dayton, Ohio.ORCID 0000-0002-7908-6462
Weiwen LongDepartment of Biochemistry and Molecular Biology, Wright State University, Dayton, Ohio weiwen.long@wright.edu.ORCID 0000-0002-4792-242X
Wright State University · US

Funding

ERK3 Kinase Signaling in Lung CancerR01CA193264 · NCI · WRIGHT STATE UNIVERSITY · PI LONG, WEIWEN · 2015 to 2019
$1.7M
NCI NIH HHS R01 CA193264
6 · The paper itself

Abstract

F-box proteins, such as F-box/WD repeat-containing protein 7 (FBW7), are essential components of the SKP1-CUL1-F-box (SCF) E3 ubiquitin ligases. They bind to S-phase kinase-associated protein 1 (SKP1) through the F-box motif and deliver their protein substrate to the E3 ligase complex for ubiquitination and subsequent degradation. F-box and leucine-rich repeat protein 16 (FBXL16) is a poorly studied F-box protein. Because it does not interact with the scaffold protein cullin 1 (CUL1), we hypothesized that FBXL16 might not form a functional SCF-E3 ligase complex. In the present study, we found that FBXL16 up-regulates the levels of proteins targeted by SCF-E3 ligases, such as C-MYC, β-catenin, and steroid receptor coactivator 3 (SRC-3). Focusing on C-MYC, a well-known oncoprotein overexpressed in most human cancers, we show that FBXL16 stabilizes C-MYC by antagonizing FBW7-mediated C-MYC ubiquitination and degradation. Further, we found that, although FBXL16 does not interact with CUL1, it interacts with SKP1 via its N-terminal F-box domain and with its substrate C-MYC via its C-terminal leucine-rich repeats (LRRs) domain. We found that both the F-box domain and the LRR domain are important for FBXL16-mediated C-MYC stabilization. In line with its role in up-regulating the levels of the C-MYC and SRC-3 oncoproteins, FBXL16 promoted cancer cell growth and migration and colony formation in soft agar. Our findings reveal that FBXL16 is an F-box protein that antagonizes the activity of another F-box protein, FBW7, and thereby increases C-MYC stability, resulting in increased cancer cell growth and invasiveness.

Indexed as

Cells, CulturedF-Box ProteinsF-Box-WD Repeat-Containing Protein 7HEK293 CellsHumansProtein StabilityProto-Oncogene MasProto-Oncogene Proteins c-mycUp-RegulationF-Box ProteinsF-Box-WD Repeat-Containing Protein 7FBXW7 protein, humanMAS1 protein, humanMYC protein, humanProto-Oncogene MasProto-Oncogene Proteins c-myccancercell migrationE3 ubiquitin ligaseF-box and leucine-rich repeat protein 16 (FBXL16)F-box proteinF-box/WD repeat-containing protein 7 (FBW7)Myc (c-Myc)protein homeostasisprotein stabilityproto-oncogene C-Myc (C-MYC)ubiquitylation (ubiquitination)

Identifiers

PMID32345600
PMCPMC7278360
OpenAlexW3019729065

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.