TFE3 Gene

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TFE3 Gene

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TFE3 Gene

Overview

TFE3 (Transcription Factor Binding to IGHM Enhancer 3) is a member of the MiT/TFE family of basic helix-loop-helix leucine zipper (bHLH-LZ) transcription factors, alongside [TFEB](/genes/tfeb), [MITF](/genes/mitf), and TFEC. TFE3 is a master regulator of [lysosomal biogenesis](/mechanisms/autophagy-lysosomal-pathway), [autophagy](/mechanisms/autophagy-lysosomal-pathway), and cellular stress responses. In the central nervous system, TFE3 activates transcription of genes encoding lysosomal enzymes, [autophagy](/entities/autophagy) machinery, and lipid catabolism factors. Impairment of TFE3 nuclear translocation — due to chronic [mTORC1](/genes/mtor) hyperactivation or sequestration by protein aggregates — contributes to the lysosomal dysfunction and autophagy failure that underlies [Alzheimer's disease](/diseases/alzheimers-disease), [Parkinson's disease](/diseases/parkinsons-disease), and lysosomal storage disorders with neurodegeneration.

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TFE3 Gene

Overview

TFE3 (Transcription Factor Binding to IGHM Enhancer 3) is a member of the MiT/TFE family of basic helix-loop-helix leucine zipper (bHLH-LZ) transcription factors, alongside [TFEB](/genes/tfeb), [MITF](/genes/mitf), and TFEC. TFE3 is a master regulator of [lysosomal biogenesis](/mechanisms/autophagy-lysosomal-pathway), [autophagy](/mechanisms/autophagy-lysosomal-pathway), and cellular stress responses. In the central nervous system, TFE3 activates transcription of genes encoding lysosomal enzymes, [autophagy](/entities/autophagy) machinery, and lipid catabolism factors. Impairment of TFE3 nuclear translocation — due to chronic [mTORC1](/genes/mtor) hyperactivation or sequestration by protein aggregates — contributes to the lysosomal dysfunction and autophagy failure that underlies [Alzheimer's disease](/diseases/alzheimers-disease), [Parkinson's disease](/diseases/parkinsons-disease), and lysosomal storage disorders with neurodegeneration.

<div class="infobox infobox-gene"> [@settembre2011]
<div class="infobox-header">TFE3</div> [@pastore2017]
<table> [@bordi2016]
<tr><td class="infobox-label">Full Name</td><td>Transcription Factor Binding to IGHM Enhancer 3</td></tr> [@decressac2013]
<tr><td class="infobox-label">Gene Symbol</td><td>TFE3</td></tr> [@sardiello2009]
<tr><td class="infobox-label">Chromosomal Location</td><td>Xp11.23</td></tr> [@tsunemi2019]
<tr><td class="infobox-label">NCBI Gene ID</td><td>[7030](https://www.ncbi.nlm.nih.gov/gene/7030)</td></tr> [@roczniakferguson2012]
<tr><td class="infobox-label">Ensembl ID</td><td>[ENSG00000068323](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000068323)</td></tr>
<tr><td class="infobox-label">UniProt ID</td><td>[P19532](https://www.uniprot.org/uniprot/P19532)</td></tr>
<tr><td class="infobox-label">Protein</td><td>[TFE3 Protein](/proteins/tfe3-protein)</td></tr>
<tr><td class="infobox-label">Associated Diseases</td><td>[AD](/diseases/alzheimers-disease), [PD](/diseases/parkinsons-disease), [HD](/diseases/huntingtons-disease), Lysosomal storage disorders</td></tr>
</table>
</div>

Function

Lysosomal Biogenesis

TFE3 binds Coordinated Lysosomal Expression and Regulation (CLEAR) elements in the promoters of over 400 lysosomal and autophagy genes:

Lysosomal hydrolases: [CTSD](/genes/ctsd), [CTSB](/genes/ctsb), [CTSL](/genes/ctsl), [HEXA](/genes/hexa), [HEXB](/genes/hexb), GLA
Lysosomal membrane proteins: [LAMP1](/genes/lamp1), [LAMP2](/genes/lamp2), MCOLN1, ATP6V0D1, ATP6V1H
Autophagy regulators: [BECN1](/genes/becn1), [ATG9A](/genes/atg9a), [ATG16L1](/genes/atg16l1), WIPI1, [ULK1](/genes/ulk1)
Lipid catabolism: PPARGC1A, LIPA, ASAH1

Autophagy Regulation

TFE3, in coordination with [TFEB](/genes/tfeb), drives the transcriptional program for all forms of autophagy:

Macroautophagy: Upregulation of ATG genes for autophagosome formation
Chaperone-mediated autophagy (CMA): Induction of LAMP2A and HSC70
Mitophagy: Upregulation of [PINK1](/genes/pink1), BNIP3L/NIX, and FUNDC1
Aggrephagy: Induction of [SQSTM1/p62](/genes/sqstm1), [NBR1](/genes/nbr1), and [OPTN](/genes/optn) autophagy receptors

Regulation by mTORC1

Under nutrient-replete conditions, [mTORC1](/genes/mtor) phosphorylates TFE3 at Ser321, creating a 14-3-3 binding site that sequesters TFE3 in the cytoplasm. Upon starvation, lysosomal stress, or mTORC1 inhibition:

[Calcineurin](/genes/ppp3cb) (activated by lysosomal calcium release through MCOLN1) dephosphorylates TFE3

Dephosphorylated TFE3 escapes 14-3-3 binding and translocates to the nucleus

Nuclear TFE3 activates CLEAR element-containing promoters

This creates a feedback loop: TFE3 induces lysosomal biogenesis to restore lysosomal function

Redundancy with TFEB

TFE3 and [TFEB](/entities/tfeb) share over 70% homology in their bHLH-LZ domains and bind identical CLEAR elements. They form homo- and heterodimers. In the brain:

Both are expressed in [neurons](/entities/neurons), [microglia](/cell-types/microglia-neuroinflammation), [astrocytes](/entities/astrocytes), and oligodendrocytes
Double knockout of Tfeb and Tfe3 in neurons causes severe lysosomal storage and neurodegeneration in mice, while single knockouts show partial phenotypes
TFE3 may partially compensate for TFEB loss and vice versa

Disease Associations

Alzheimer's Disease

[Amyloid-beta](/proteins/amyloid-beta) oligomers chronically activate mTORC1 in neurons, trapping TFE3 in the cytoplasm and impairing autophagy
TFE3 nuclear localization is reduced in AD patient hippocampal neurons compared to age-matched controls
Overexpression of constitutively active TFE3 (S321A) in [APP](/entities/app-protein)/PS1 mice reduces amyloid plaque burden by enhancing lysosomal degradation of Aβ
TFE3-driven autophagy is required for clearance of [tau](/proteins/tau) aggregates; TFE3 deficiency exacerbates tauopathy

Parkinson's Disease

[α-Synuclein](/proteins/alpha-synuclein) aggregates impair lysosomal function and trap TFE3/TFEB in the cytoplasm
[LRRK2](/genes/lrrk2) G2019S mutations increase mTORC1 activity, reducing TFE3 nuclear translocation
TFE3 overexpression in dopaminergic neurons rescues α-synuclein-induced toxicity by enhancing autophagic clearance
[GBA1](/genes/gba1) mutations reduce glucocerebrosidase activity, causing lysosomal stress that activates TFE3 as a compensatory response

Huntington's Disease

Mutant [huntingtin](/proteins/huntingtin-protein) protein sequesters TFE3 in cytoplasmic aggregates, preventing nuclear translocation
TFE3 activation (via mTORC1 inhibitors or genetic approaches) reduces mutant [huntingtin](/proteins/huntingtin) aggregation in HD models
[HTT](/genes/htt) polyQ expansion disrupts the TFE3-14-3-3 interaction, paradoxically impairing rather than enhancing TFE3 nuclear import

Lysosomal Storage Disorders

TFE3 constitutive activation occurs in multiple LSDs (Pompe, Gaucher, Niemann-Pick C) as a compensatory response to lysosomal dysfunction
However, this activation is often insufficient to overcome the primary enzymatic deficiency
Gene therapy strategies combining enzyme replacement with TFE3 overexpression show synergistic effects

Expression

Neurons: Moderate expression; TFE3 and TFEB cooperate to maintain neuronal lysosomal homeostasis
Microglia: High expression; TFE3 regulates phagocytic capacity and inflammatory gene expression
Astrocytes: Moderate expression; involved in astrocytic autophagy and lipid metabolism
Oligodendrocytes: Moderate expression; TFE3 supports myelin lipid turnover

Allen Brain Atlas data shows TFE3 expression enriched in [hippocampus](/brain-regions/hippocampus), [cortex](/brain-regions/cortex), and cerebellum — regions with high metabolic and autophagic demands.

Therapeutic Targeting

mTORC1 Inhibitors

Rapamycin/Everolimus: mTORC1 inhibition promotes TFE3/TFEB nuclear translocation; rapamycin shows neuroprotective effects in AD and PD models
Torin1/2: ATP-competitive [mTOR](/mechanisms/mtor-signaling-pathway) inhibitors with stronger TFE3 activation than rapalogs
CCI-779 (Temsirolimus): mTORC1 inhibitor that promotes autophagy in neurodegenerative models

Direct TFE3/TFEB Activators

Trehalose: Disaccharide that activates TFEB/TFE3 through mTOR-independent mechanisms; neuroprotective in multiple models
MCOLN1 agonists (ML-SA1): Activate lysosomal calcium release, promoting calcineurin-dependent TFE3 dephosphorylation
Curcumin analogs: Activate TFEB/TFE3 nuclear translocation in neurons

Gene Therapy

AAV-mediated TFE3 or TFEB delivery to neurons reduces pathology in AD, PD, and HD mouse models
Constitutively nuclear TFE3 (S321A) variants provide stronger and sustained activation

External Links

[NCBI Gene: TFE3](https://www.ncbi.nlm.nih.gov/gene/7030)
[UniProt: P19532](https://www.uniprot.org/uniprot/P19532)
[GeneCards: TFE3](https://www.genecards.org/cgi-bin/carddisp.pl?gene=TFE3)
[OMIM: TFE3](https://www.omim.org/entry/314310)
[Allen Brain Atlas: TFE3](https://human.brain-map.org/microarray/search/show?search_term=TFE3)

References

[Martina JA et al., The nutrient-responsive transcription factor TFE3 promotes autophagy, lysosomal biogenesis, and clearance of cellular debris (2014) (2014)](https://doi.org/10.1126/scisignal.2004754)

[Settembre C et al., TFEB links autophagy to lysosomal biogenesis (2011) (2011)](https://doi.org/10.1126/science.1204592)

[Pastore N et al., TFE3 regulates whole-body energy metabolism in cooperation with TFEB (2017) (2017)](https://doi.org/10.15252/embr.201643204)

[Bordi M et al., Autophagy flux in CA1 neurons of Alzheimer hippocampus: Increased induction overburdens failing lysosomes to propel neuritic dystrophy (2016) (2016)](https://doi.org/10.1080/15548627.2016.1185078)

[Decressac M et al., TFEB-mediated autophagy rescues midbrain dopamine neurons from α-synuclein toxicity (2013) (2013)](https://doi.org/10.1073/pnas.1305623110)

[Sardiello M et al., A gene network regulating lysosomal biogenesis and function (2009) (2009)](https://doi.org/10.1126/science.1174447)

[Tsunemi T et al., Increased lysosomal exocytosis induced by lysosomal Ca2+ channel agonists is potentiated by TFEB/TFE3 (2019) (2019)](https://doi.org/10.1073/pnas.1811تي1816816)

[Roczniak-Ferguson A et al., The transcription factor TFEB links mTORC1 signaling to transcriptional control of lysosome homeostasis (2012) (2012)](https://doi.org/10.1126/scisignal.2002790)

Pathway Diagram

Mermaid diagram (expand to render)

Pathway Diagram

The following diagram shows the key molecular relationships involving TFE3 Gene discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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Related Entities

TFE3

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kg_node_id	TFE3
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-378d4d3af98b
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-tfe3'}
_schema_version	1

📊 Evidence Profile Foundational

Evidence Balance

+0%

Certainty

60%

Debates

0

Incoming

12

Outgoing

35

0 supporting 0 contradicting 0 neutral

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📗 Cite This Artifact

TFE3 Gene

TFE3 Gene

Overview

TFE3 Gene

Overview

Function

Lysosomal Biogenesis

Autophagy Regulation

Regulation by mTORC1

Redundancy with TFEB

Disease Associations

Alzheimer's Disease

Parkinson's Disease

Huntington's Disease

Lysosomal Storage Disorders

Expression

Therapeutic Targeting

mTORC1 Inhibitors

Direct TFE3/TFEB Activators

Gene Therapy

See Also

External Links

References

Pathway Diagram

Pathway Diagram

💬 Discussion