ArticleThe Journal of biological chemistry2012
The F-box protein FBXO44 mediates BRCA1 ubiquitination and degradation.
Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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.
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.
Who cites it
47 citing papers in PubMed, 61 citations in OpenAlex.
- Pemetrexed increases BRCA1 protein stability and sensitizes TNBC cells to radiotherapy.Oncology reports · 2026Article
- Alkylating agents activate an SLFN11-dependent vulnerability that confers PARP-1 inhibitor sensitivity in kidney cancer.Journal of experimental & clinical cancer research : CR · 2026Article
- Silencing SGO2 by Oxamic Acid Dissociates Glycolysis and BRCA1-Mediated DNA Repair to Improve the Chemosensitivity of Lung Adenocarcinoma.Exploration (Beijing, China) · 2026Article
- MTSS1-dependent ubiquitin modifications mediated by FBXO44 remodel the actin cytoskeleton to promote gastric cancer progression.Molecular cancer · 2026Article
- β-TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1.Molecular oncology · 2026Article
- Ubiquitination mediated by RING-type E3 ligases in the progression of digestive system tumors: mechanistic insights and potential therapeutic strategies.Frontiers in cell and developmental biology · 2026Review
- The deubiquitinating enzyme Cezanne stabilizes BRCA1 by counteracting APC/C and Ube2S-dependent Lys11-linked ubiquitination.PLoS biology · 2025Article
- FBXO44 Regulates FOXP1 Degradation Through AURKA-Dependent Phosphorylation to Promote Colorectal Cancer Progression.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Investigating the potential causal link between BPA and ovarian carcinogenesis: a network toxicology and mendelian randomization study on the CTRC/PRDX1/SKP1 pathway.Journal of ovarian research · 2025Article
- BARD1: A Friend or Foe in Pancreatic Ductal Adenocarcinoma?International journal of molecular sciences · 2025Review
- Discovery of RGS2-FBXO44 interaction inhibitors using a cell-based NanoBit assay.Molecular pharmacology · 2025Article
- A Perspective on Therapeutic Targeting Against Ubiquitin Ligases to Stabilize Tumor Suppressor Proteins.Cancers · 2025Review
- SKP1-CUL1-F-box: Key molecular targets affecting disease progression.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025Review
- Sphingosylphosphorylcholine Promotes Th9 Cell Differentiation Through Regulation of Smad3, STAT5, and β-Catenin Pathways.Immune network · 2024Article
- A high-throughput approach to identify BRCA1-downregulating compounds to enhance PARP inhibitor sensitivity.iScience · 2024Article
- The deubiquitinating enzyme USP4 regulates BRCA1 stability and function.NPJ breast cancer · 2024Article
- F-box proteins and gastric cancer: an update from functional and regulatory mechanism to therapeutic clinical prospects.International journal of medical sciences · 2024Review
- The F-box-only protein 44 regulates pregnane X receptor protein level by ubiquitination and degradation.Acta pharmaceutica Sinica. B · 2023Article
- The Role of Genetic Mutations in Mitochondrial-Driven Cancer Growth in Selected Tumors: Breast and Gynecological Malignancies.Life (Basel, Switzerland) · 2023Review
- Phosphorylation of BRCA1 by ATM upon double-strand breaks impacts ATM function in end-resection: A potential feedback loop.iScience · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
BRCA1 mutations account for a significant proportion of familial breast and ovarian cancers. In addition, reduced BRCA1 protein is associated with sporadic cancer cases in these tissues. At the cellular level, BRCA1 plays a critical role in multiple cellular functions such as DNA repair and cell cycle checkpoint control. Its protein level is regulated in a cell cycle-dependent manner. However, regulation of BRCA1 protein stability is not fully understood. Our earlier study showed that the amino terminus of BRCA1 harbors a degron sequence that is sufficient and necessary for conferring BRCA1 degradation. In the current study, we used mass spectrometry to identify Skp1 that regulates BRCA1 protein stability. Small interfering RNA screening that targets all human F-box proteins uncovered FBXO44 as an important protein that influences BRCA1 protein level. The Skp1-Cul1-F-box-protein44 (SCF(FBXO44)) complex ubiquitinates full-length BRCA1 in vitro. Furthermore, the N terminus of BRCA1 mediates the interaction between BRCA1 and FBXO44. Overexpression of SCF(FBXO44) reduces BRCA1 protein level. Taken together, our work strongly suggests that SCF(FBXO44) is an E3 ubiquitin ligase responsible for BRCA1 degradation. In addition, FBXO44 expression pattern in breast carcinomas suggests that SCF(FBXO44)-mediated BRCA1 degradation might contribute to sporadic breast tumor development.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.