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10 sources retrieved · Most recent: April 2026 · Index updated 14 days ago
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BAIAP2L2
BAR/IMD domain containing adaptor protein 2 like 2
Chromosome 22 · 22q13.1
NCBI Gene: 80115Ensembl: ENSG00000128298.19HGNC: HGNC:26203UniProt: Q6UXY1
15PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
cell-cell contact zoneclathrin complexvesicle membranemembrane organizationhearing lossneurodegenerative diseasedegeneration of macula and posterior polemacular degeneration
✦AI Summary

BAIAP2L2 is a BAR/IMD domain-containing membrane adaptor protein that binds phosphoinositides and regulates membrane curvature and actin dynamics 1. Under physiological conditions, BAIAP2L2 is not essential for kidney epithelial integrity or electrolyte homeostasis 1. However, BAIAP2L2 is significantly upregulated across multiple cancer types and drives malignant progression through distinct mechanisms. In hepatocellular carcinoma, BAIAP2L2 enhances JAK1/STAT3 signaling to promote proliferation, metastasis, and PD-L1-mediated immune evasion 2, while also regulating immunity, methylation, and cuprotosis-related pathways 3. In gastric cancer, BAIAP2L2 activates AKT/mTOR and Wnt3a/β-catenin signaling pathways to increase proliferation and invasion 4, and facilitates extracellular vesicle-mediated chemoresistance transfer via m6A-dependent YTHDF1 interactions 5. In lung cancer, BAIAP2L2 supports proliferation through the Estrogen-mediated S-phase Entry pathway 6, while in prostate cancer it promotes migration and viability 7. BAIAP2L2 emerges as a pan-cancer therapeutic target with prognostic significance across multiple malignancies.

Sources cited
1
BAIAP2L2 overexpression correlates with HCC progression, poor prognosis, and facilitates proliferation, metastasis, invasion, and immune evasion via JAK1/STAT3 pathway activation and PD-L1 upregulation
PMID: 40097840
2
BAIAP2L2 is overexpressed in HCC, promotes migration and invasion, and affects prognosis through immunity, methylation, and cuprotosis regulation
PMID: 37248248
3
BAIAP2L2 is increased in chemotherapy-resistant gastric cancer cells and promotes chemotherapy resistance transmission through extracellular vesicles via YTHDF1-mediated m6A modification
PMID: 40082986
4
BAIAP2L2 is highly expressed in gastric cancer tissues and knockdown inhibits proliferation, migration, and invasion by inactivating AKT/mTOR and Wnt3a/β-catenin signaling pathways
PMID: 32570120
5
BAIAP2L2 is upregulated in lung adenocarcinoma and promotes proliferation; BAIAP2L2 knockdown decreases viability, colony formation, and increases apoptosis via dysregulation of the Estrogen-mediated S-phase Entry pathway
PMID: 30483805
6
BAIAP2L2 is significantly upregulated in prostate cancer tissues and BAIAP2L2 knockdown impairs migration, proliferation, and viability
PMID: 40356901
7
BAIAP2L2 is a transcriptional target of HNF1β; Baiap2l2 knockout mice display normal kidney morphology and electrolyte homeostasis
PMID: 36520027
8
BAIAP2L2 is included in an ac4C-related gene signature that predicts immunotherapy response in melanoma patients
PMID: 40050821
Disease Associationsⓘ20
hearing lossOpen Targets
0.30Weak
neurodegenerative diseaseOpen Targets
0.27Weak
degeneration of macula and posterior poleOpen Targets
0.26Weak
macular degenerationOpen Targets
0.24Weak
age-related hearing impairmentOpen Targets
0.22Weak
PLA2G6-associated neurodegenerationOpen Targets
0.15Weak
Sensorineural hearing impairmentOpen Targets
0.14Weak
sensorineural hearing lossOpen Targets
0.14Weak
hepatocellular carcinomaOpen Targets
0.10Suggestive
glioblastoma multiformeOpen Targets
0.10Suggestive
central nervous system cancerOpen Targets
0.09Suggestive
melanomaOpen Targets
0.09Suggestive
disorder of earOpen Targets
0.09Suggestive
hearing loss, autosomal recessiveOpen Targets
0.08Suggestive
deafnessOpen Targets
0.08Suggestive
asthmaOpen Targets
0.08Suggestive
autosomal dominant nonsyndromic hearing lossOpen Targets
0.08Suggestive
cancerOpen Targets
0.08Suggestive
lung adenocarcinomaOpen Targets
0.08Suggestive
neoplasmOpen Targets
0.07Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
CLTCProtein interaction93%AP2B1Protein interaction92%AP2S1Protein interaction91%AP2M1Protein interaction91%AP2A1Protein interaction91%NCALDProtein interaction90%
Tissue Expression6 tissues
Liver
100%
Ovary
48%
Bone Marrow
40%
Lung
28%
Brain
21%
Heart
11%
Gene Interaction Network
Click a node to explore
BAIAP2L2CLTCAP2B1AP2S1AP2M1AP2A1NCALD
PROTEIN STRUCTURE
Preparing viewer…
AlphaFoldAI-predicted · UniProt Q6UXY1
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
1.47LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF1.19 [0.97–1.47]
RankingsWhere BAIAP2L2 stands among ~20K protein-coding genes
  • #15,494of 20,598
    Most Researched15
  • #14,977of 17,882
    Most Constrained (LOEUF)1.47
Genes detectedBAIAP2L2
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
BAIAP2L2 facilitates hepatocellular carcinoma progression and immune evasion of via targeting JAK1-mediated pathway and PD-L1 expression.
PMID: 40097840
Cancer Gene Ther · 2025
1.00
2
Unveiling ac4C modification pattern: a prospective target for improving the response to immunotherapeutic strategies in melanoma.
PMID: 40050821
J Transl Med · 2025
0.90
3
BAIAP2L2 is a novel prognostic biomarker related to migration and invasion of HCC and associated with cuprotosis.
PMID: 37248248
Sci Rep · 2023
0.80
4
N6-methyladenosine RNA modified BAIAP2L2 facilitates extracellular vesicles-mediated chemoresistance transmission in gastric cancer.
PMID: 40082986
J Transl Med · 2025
0.70
5
HNF1β-associated cyst development and electrolyte disturbances are not explained by BAIAP2L2 expression.
PMID: 36520027
FASEB J · 2023
0.60