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10 sources retrieved · Most recent: April 2026 · Index updated 15 days ago
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FNBP1
formin binding protein 1
Chromosome 9 · 9q34.11
NCBI Gene: 23048Ensembl: ENSG00000187239.19HGNC: HGNC:17069UniProt: A0A8V8TQ35
81PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
protein bindingidentical protein bindingplasma membranecytosolalcohol drinkinghidradenitislung adenocarcinomagastric adenocarcinoma
✦AI Summary

FNBP1 is a cytoskeletal adaptor protein that coordinates actin dynamics with membrane trafficking and organellar homeostasis. Mechanistically, FNBP1 binds directly to Daam1 and participates in non-canonical Wnt signaling to regulate actin cytoskeletal reorganization during vertebrate gastrulation 1. The protein recruits N-WASP to enhance actin polymerization and promotes membrane invagination during clathrin-mediated endocytosis through lipid binding 1. Additionally, FNBP1 functions as a neuronal Golgiphagy receptor, sensing nutrient stress through its membrane tension-sensing properties and recruiting fragmented Golgi membranes to autophagosomes via LC3B interaction 2. Clinically, elevated FNBP1 expression correlates with poor prognosis across multiple malignancies. In glioblastoma, FNBP1 is upregulated through RBM15B-mediated m6A methylation and IGF2BP2-enhanced mRNA stability, promoting tumor progression by activating Smad3-mediated glycolysis 3. FNBP1 knockdown suppressed tumor growth and metastasis in glioblastoma models 3. Genome-wide association studies implicate FNBP1 as a biomarker for colorectal cancer prognosis 4 and identify it as a potential risk gene in amyotrophic lateral sclerosis and self-limited delayed puberty 5, 6. These findings establish FNBP1 as a multifunctional scaffold protein linking developmental signaling, cellular stress responses, and disease pathogenesis.

Sources cited
1
FNBP1 binds to Daam1, participates in non-canonical Wnt signaling, regulates actin cytoskeletal reorganization during vertebrate gastrulation, localizes to focal adhesions, and synergizes with Daam1 to control cell migration
PMID: 38945423
2
FNBP1 functions as a nutrient stress-responsive Golgiphagy receptor that localizes to fragmented Golgi membranes and interacts with LC3B to sequester organelles in autophagosomes during nutrient starvation in neurons
PMID: 39341273
3
FNBP1 expression is elevated in glioblastoma, correlates with higher tumor grade and reduced survival, and promotes tumor progression through RBM15B-m6A-IGF2BP2-mediated upregulation and LASP1-Smad3-mediated glycolysis activation; knockdown suppresses tumor growth and metastasis
PMID: 41086050
4
FNBP1 was identified as a significant biomarker correlated with prognosis in colorectal cancer patients through RNA-seq analysis and machine learning approaches
PMID: 37446311
5
FNBP1 was identified as a putative ALS risk gene through integrative transcriptomic analysis of ALS spinal cord with molecular quantitative trait loci mapping
PMID: 36482247
6
FNBP1 variants were identified as significantly enriched in self-limited delayed puberty patients compared to controls through whole-exome sequencing and burden test analysis
PMID: 40193575
Disease Associationsⓘ20
alcohol drinkingOpen Targets
0.29Weak
hidradenitisOpen Targets
0.23Weak
lung adenocarcinomaOpen Targets
0.20Weak
gastric adenocarcinomaOpen Targets
0.20Weak
osteosarcomaOpen Targets
0.19Weak
acute myeloid leukemiaOpen Targets
0.19Weak
breast ductal adenocarcinomaOpen Targets
0.19Weak
non-small cell lung carcinomaOpen Targets
0.19Weak
urinary bladder carcinomaOpen Targets
0.19Weak
breast carcinomaOpen Targets
0.19Weak
gastrointestinal stromal tumorOpen Targets
0.19Weak
squamous cell lung carcinomaOpen Targets
0.19Weak
carcinoma of liver and intrahepatic biliary tractOpen Targets
0.18Weak
clear cell renal carcinomaOpen Targets
0.18Weak
Duodenal AdenocarcinomaOpen Targets
0.18Weak
Endometrial Endometrioid AdenocarcinomaOpen Targets
0.18Weak
esophageal adenocarcinomaOpen Targets
0.18Weak
oral squamous cell carcinomaOpen Targets
0.18Weak
skin carcinomaOpen Targets
0.18Weak
T-cell acute lymphoblastic leukemiaOpen Targets
0.18Weak
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
ENTHD1Shared pathway100%EPN3Shared pathway100%CDC42Protein interaction100%WIPF2Protein interaction100%FNBP1LProtein interaction100%DNM2Protein interaction96%
Tissue Expression6 tissues
Brain
100%
Bone Marrow
93%
Lung
62%
Ovary
56%
Heart
42%
Liver
33%
Gene Interaction Network
Click a node to explore
FNBP1ENTHD1EPN3CDC42WIPF2FNBP1LDNM2
PROTEIN STRUCTURE
Preparing viewer…
PDB2EFL · 2.61 Å · X-ray
View on RCSB ↗
Constraintⓘ
LOEUFⓘ
0.46Moderately Constrained
pLIⓘ
1.00Intolerant
Observed/Expected LoF0.31 [0.22–0.46]
RankingsWhere FNBP1 stands among ~20K protein-coding genes
  • #5,860of 20,598
    Most Researched81
  • #2,569of 17,882
    Most Constrained (LOEUF)0.46 · top quartile
Genes detectedFNBP1
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
Using Machine Learning Methods to Study Colorectal Cancer Tumor Micro-Environment and Its Biomarkers.
PMID: 37446311
Int J Mol Sci · 2023
1.00
2
Integrative transcriptomic analysis of the amyotrophic lateral sclerosis spinal cord implicates glial activation and suggests new risk genes.
PMID: 36482247
Nat Neurosci · 2023
0.90
3
Formin Binding Protein 1 (FNBP1) regulates non-canonical Wnt signaling and vertebrate gastrulation.
PMID: 38945423
Dev Biol · 2024
0.80
4
RBM15B/IGF2BP2-m6A Mediated Upregulation of FNBP1 Promotes the Progression of Glioblastoma by Promoting Smad3-Mediated Glycolysis.
PMID: 41086050
Drug Dev Res · 2025
0.70
5
Identification and characterization of human FNBP1L gene in silico.
PMID: 14654988
Int J Mol Med · 2004
0.60