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10 sources retrieved · Most recent: April 2026 · Index updated 14 days ago
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BZW1
basic leucine zipper and W2 domains 1
Chromosome 2 · 2q33.1
NCBI Gene: 9689Ensembl: ENSG00000082153.19HGNC: HGNC:18380UniProt: B3KU41
105PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
FUNCTIONAL ROLE
Highly ConstrainedTranscription Factor
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
RNA bindingcadherin bindingregulation of translational initiationcytoplasmskin neoplasmskin cancergram-negative bacterial infectionsexostosis
✦AI Summary

BZW1 (basic leucine zipper and W2 domains 1) is a translation initiation regulatory protein that plays crucial roles in both normal cellular processes and tumorigenesis. The protein functions primarily as a competitive inhibitor of eukaryotic translation initiation factor 5 (EIF5), specifically repressing repeat-associated non-AUG (RAN) initiated translation while promoting accurate AUG-dependent translation initiation 1. BZW1 is essential for early embryonic development, particularly during preimplantation stages where it regulates compaction and blastocyst formation by restricting non-AUG translational initiation 1. In cancer contexts, BZW1 is consistently overexpressed across multiple tumor types including pancreatic ductal adenocarcinoma, prostate cancer, glioma, and lung adenocarcinoma, where high expression correlates with poor prognosis 2345. Mechanistically, BZW1 promotes tumorigenesis through multiple pathways: it facilitates glycolysis by serving as an adaptor for PERK, promoting eIF2α phosphorylation and subsequent HIF1α/c-Myc translation 2; it activates TGF-β1/Smad signaling to enhance cell proliferation 3; and it contributes to metabolic reprogramming and endoplasmic reticulum stress responses 6. Clinically, BZW1 represents a promising therapeutic target and prognostic biomarker, with its expression levels correlating with tumor progression, metastasis, and patient survival outcomes across various cancer types 7.

Sources cited
1
BZW1 represses non-AUG translation initiation and is essential for embryonic development
PMID: 36333315
2
BZW1 promotes pancreatic cancer glycolysis through PERK/eIF2α/HIF1α pathway
PMID: 34951995
3
BZW1 overexpression in prostate cancer activates TGF-β1/Smad pathway and correlates with poor prognosis
PMID: 33886419
4
BZW1 is highly expressed in gliomas and promotes proliferation
PMID: 36907429
5
BZW1 overexpression is an independent poor prognosis marker in lung adenocarcinoma
PMID: 31601833
6
BZW1 promotes metabolic reprogramming and endoplasmic reticulum stress through eIF2α phosphorylation
PMID: 37828427
7
BZW1 serves as prognostic and immunological biomarker in pancreatic adenocarcinoma
PMID: 38306570
Disease Associationsⓘ20
skin neoplasmOpen Targets
0.41Moderate
skin cancerOpen Targets
0.32Weak
gram-negative bacterial infectionsOpen Targets
0.26Weak
exostosisOpen Targets
0.20Weak
basal cell carcinomaOpen Targets
0.17Weak
Abnormal nasolacrimal system morphologyOpen Targets
0.16Weak
gliomaOpen Targets
0.08Suggestive
neoplasmOpen Targets
0.08Suggestive
lung cancerOpen Targets
0.08Suggestive
lung adenocarcinomaOpen Targets
0.06Suggestive
foot fractureOpen Targets
0.06Suggestive
cancerOpen Targets
0.05Suggestive
azoospermiaOpen Targets
0.05Suggestive
Cataract-microcornea syndromeOpen Targets
0.05Suggestive
Cataract with Y-shaped suture opacitiesOpen Targets
0.04Suggestive
Cochleosaccular degeneration - cataractOpen Targets
0.04Suggestive
cochleosaccular degeneration-cataract syndromeOpen Targets
0.04Suggestive
gastric cancerOpen Targets
0.04Suggestive
pancreatic adenocarcinomaOpen Targets
0.04Suggestive
Familial ocular anterior segment mesenchymal dysgenesisOpen Targets
0.04Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
BZW2Protein interaction90%EIF4BShared pathway50%CTIFShared pathway33%MIF4GDShared pathway33%METAP2Shared pathway33%EIF1BShared pathway33%
Tissue Expression6 tissues
Liver
100%
Bone Marrow
86%
Brain
75%
Lung
65%
Ovary
43%
Heart
24%
Gene Interaction Network
Click a node to explore
BZW1BZW2EIF4BCTIFMIF4GDMETAP2EIF1B
PROTEIN STRUCTURE
Preparing viewer…
AlphaFoldAI-predicted · UniProt Q3LIC9
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
0.19Highly Constrained
pLIⓘ
1.00Intolerant
Observed/Expected LoF0.07 [0.03–0.19]
RankingsWhere BZW1 stands among ~20K protein-coding genes
  • #4,515of 20,598
    Most Researched105 · top quartile
  • #374of 17,882
    Most Constrained (LOEUF)0.19 · top 5%
Genes detectedBZW1
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
BZW1 Facilitates Glycolysis and Promotes Tumor Growth in Pancreatic Ductal Adenocarcinoma Through Potentiating eIF2α Phosphorylation.
PMID: 34951995
Gastroenterology · 2022
1.00
2
BZW1 promotes cell proliferation in prostate cancer by regulating TGF-β1/Smad pathway.
PMID: 33886419
Cell Cycle · 2021
0.90
3
BZW1 is a prognostic and immunological biomarker in pancreatic adenocarcinoma.
PMID: 38306570
Medicine (Baltimore) · 2024
0.80
4
BZW1 as an oncogene is associated with patient prognosis and the immune microenvironment in glioma.
PMID: 36907429
Genomics · 2023
0.70
5
CD97 maintains tumorigenicity of glioblastoma stem cells via mTORC2 signaling and is targeted by CAR Th9 cells.
PMID: 39637858
Cell Rep Med · 2024
0.60