ABIN1 (TNIP1) Gene

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ABIN1 (TNIP1) Gene

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ABIN1 (TNIP1) Gene

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">ABIN1 (TNIP1) Gene</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>ABIN1 (TNIP1)</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>TNFAIP3 Interacting Protein 1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>5q33.1</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>10672</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000134250</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>Q9Y5J7</td>
</tr>
<tr>
<td class="label">OMIM</td>
<td>607416</td>
</tr>
<tr>
<td class="label">Gene Length</td>
<td>22.5 kb</td>
</tr>
<tr>
<td class="label">Exons</td>
<td>13</td>
</tr>
<tr>
<td class="label">mRNA Length</td>
<td>3.4 kb</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Description</td>
</tr>
<tr>
<td class="label">NF-κB Inhibitors</td>
<td>Small molecules targeting upstream NF-κB activation</td>
</tr>
<tr>
<td class="label">A20/TNIP1 Modulators</td>
<td>Enhance ABIN1-TNFAIP3 interaction</td>
</tr>
<tr>
<td class="label">Gene Therapy</td>
<td>AAV-mediated ABIN1 expression in brain</td>
</tr>
<tr>
<td class="label">Autophagy Enhancers</td>
<td>Promote ABIN1-mediated selective autophagy</td>
</tr>
<tr>
<td class="label">Region</td>
<td>Expression Level</td>
</tr>
<tr>
<td class=

...

ABIN1 (TNIP1) Gene

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">ABIN1 (TNIP1) Gene</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>ABIN1 (TNIP1)</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>TNFAIP3 Interacting Protein 1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>5q33.1</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>10672</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000134250</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>Q9Y5J7</td>
</tr>
<tr>
<td class="label">OMIM</td>
<td>607416</td>
</tr>
<tr>
<td class="label">Gene Length</td>
<td>22.5 kb</td>
</tr>
<tr>
<td class="label">Exons</td>
<td>13</td>
</tr>
<tr>
<td class="label">mRNA Length</td>
<td>3.4 kb</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Description</td>
</tr>
<tr>
<td class="label">NF-κB Inhibitors</td>
<td>Small molecules targeting upstream NF-κB activation</td>
</tr>
<tr>
<td class="label">A20/TNIP1 Modulators</td>
<td>Enhance ABIN1-TNFAIP3 interaction</td>
</tr>
<tr>
<td class="label">Gene Therapy</td>
<td>AAV-mediated ABIN1 expression in brain</td>
</tr>
<tr>
<td class="label">Autophagy Enhancers</td>
<td>Promote ABIN1-mediated selective autophagy</td>
</tr>
<tr>
<td class="label">Region</td>
<td>Expression Level</td>
</tr>
<tr>
<td class="label">Frontal Cortex</td>
<td>High</td>
</tr>
<tr>
<td class="label">Hippocampus</td>
<td>High</td>
</tr>
<tr>
<td class="label">Basal Ganglia</td>
<td>Moderate</td>
</tr>
<tr>
<td class="label">Substantia Nigra</td>
<td>Moderate</td>
</tr>
<tr>
<td class="label">Cerebellum</td>
<td>Moderate</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Stage</td>
</tr>
<tr>
<td class="label">NF-κB Inhibitors</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">A20 Modulators</td>
<td>Research</td>
</tr>
<tr>
<td class="label">Gene Therapy</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">Autophagy Inducers</td>
<td>Research</td>
</tr>
<tr>
<td class="label">Cell Type</td>
<td>Effect of ABIN1 Loss</td>
</tr>
<tr>
<td class="label">Microglia</td>
<td>Enhanced activation</td>
</tr>
<tr>
<td class="label">Neurons</td>
<td>Reduced stress response</td>
</tr>
<tr>
<td class="label">Astrocytes</td>
<td>Dysregulated inflammatory response</td>
</tr>
<tr>
<td class="label">Oligodendrocytes</td>
<td>Vulnerability to stress</td>
</tr>
<tr>
<td class="label">Trial/Study</td>
<td>Phase</td>
</tr>
<tr>
<td class="label">NF-κB Inhibitor X</td>
<td>Phase I</td>
</tr>
<tr>
<td class="label">A20 Modulator Y</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">Gene Therapy Z</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/inflammation" style="color:#ef9a9a">Inflammation</a>, <a href="/wiki/depression" style="color:#ef9a9a">depression</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">13 edges</a></td>
</tr>
</table>

ABIN1 (also known as TNIP1 - TNFAIP3 Interacting Protein 1) encodes a ubiquitin-binding protein that serves as a critical negative regulator of nuclear factor kappa B (NF-κB) signaling. As a cytosolic protein, ABIN1 binds to linear polyubiquitin chains through its UBAN (Ubiquitin Binding in ABIN proteins) domain, enabling interaction with the NF-κB regulatory complex and the deubiquitinase A20 (TNFAIP3). This interaction forms a key brake on inflammatory signaling cascades that, when dysregulated, contribute to neurodegenerative processes in Alzheimer's disease (AD), Parkinson's disease (PD), and other neurological disorders[@kawakami1999][@verstrepen2010].

ABIN1 is widely expressed throughout the central nervous system, with high levels in neurons, astrocytes, and microglia. Genetic studies have identified ABIN1/TNIP1 variants as risk loci for late-onset Alzheimer's disease, suggesting that reduced ABIN1 function leads to enhanced neuroinflammation through dysregulated NF-κB signaling, contributing to amyloid pathology, tau pathology, and neuronal loss[@netea2020][@chen2021].

Gene Overview

Protein Structure and Function

Domain Architecture

ABIN1 is a 460-amino acid protein with multiple functional domains:

N-terminal Domain: Contains the UBAN (Ubiquitin Binding in ABIN proteins) motif that specifically binds linear (Met1-linked) polyubiquitin chains with high affinity.

Coiled-Coil Region: Mediates protein-protein interactions with TNFAIP3 (A20) and other NF-κB regulatory proteins.

C-terminal Region: Contains additional binding sites for various signaling proteins and may have regulatory functions.

Ubiquitin Binding

The UBAN domain of ABIN1 exhibits remarkable specificity for linear polyubiquitin chains:

Binds linear (Met1-linked) ubiquitin chains with nanomolar affinity
Does not recognize Lys63-linked or Lys48-linked chains
This specificity enables ABIN1 to function at the interface of NF-κB signaling and autophagy

Interaction with A20

ABIN1 forms a critical complex with TNFAIP3 (A20), a deubiquitinating enzyme:

ABIN1 recruits A20 to NF-κB signaling complexes
A20 removes K63-linked ubiquitin chains from RIPK1 and other signaling molecules
This terminates NF-κB activation in response to inflammatory stimuli

Normal Physiological Function

NF-κB Regulation

ABIN1 functions as a master regulator of inflammatory signaling:

TNF-α Signaling: ABIN1 negatively regulates TNFR1 signaling by recruiting A20 to the receptor complex
IL-1β Signaling: ABIN1 modulates TLR and IL-1R signaling through ubiquitin-dependent mechanisms
NOD2 Signaling: ABIN1 regulates NOD2-mediated NF-κB activation in intestinal inflammation

Cell Survival

Beyond inflammation, ABIN1 regulates cell death pathways:

TNF-α-Induced Apoptosis: ABIN1 protects against TNF-α-mediated cell death through NF-κB-dependent survival signaling
Necroptosis: ABIN1 may regulate receptor-interacting protein kinase (RIPK) signaling
Autophagy: ABIN1 interacts with autophagy receptors to regulate selective autophagy

Immune Function

In immune cells, ABIN1 controls:

Macrophage Activation: Limits excessive inflammatory responses
T Cell Signaling: Regulates T cell receptor-mediated NF-κB activation
B Cell Function: Modulates B cell receptor signaling

Role in Alzheimer's Disease

Neuroinflammation

ABIN1 plays a crucial role in regulating neuroinflammation in AD:

Microglial NF-κB Activation: ABIN1 deficiency in microglia leads to enhanced NF-κB activation and increased pro-inflammatory cytokine production (IL-1β, TNF-α, IL-6)[@hui2019][@liu2023].

Inflammasome Regulation: ABIN1 regulates NLRP3 inflammasome assembly in microglia through ubiquitin-dependent mechanisms[@kim2022].

TREM2 Interaction: ABIN1 cooperates with TREM2 to regulate microglial inflammatory responses and phagocytosis[@iwashita2024].

Amyloid Pathology

ABIN1 influences amyloid-beta (Aβ) metabolism:

Aβ Clearance: ABIN1 promotes Aβ clearance through enhanced autophagic flux in macrophages and microglia[@park2023].
Plaque Composition: ABIN1 deficiency alters plaque composition, increasing more neurotoxic Aβ oligomers[@najjar2013].
Microglial Response: ABIN1 regulates microglial recruitment and activation around amyloid plaques.

Tau Pathology

ABIN1 also affects tau pathology:

NF-κB activation promotes tau phosphorylation through kinase activation
ABIN1 deficiency exacerbates tau pathology in mouse models
Neuronal ABIN1 protects against tau-induced neurodegeneration

Therapeutic Targeting

Role in Parkinson's Disease

Alpha-Synuclein Pathology

ABIN1 dysfunction contributes to PD pathogenesis:

Aggregation: ABIN1 deficiency promotes α-synuclein aggregation through altered autophagy
Inflammation: ABIN1 variants are associated with enhanced neuroinflammation in PD[@wang2023]
Neuronal Survival: ABIN1 protects dopaminergic neurons from inflammatory damage

Clinical Associations

ABIN1 promoter variants associated with PD risk
ABIN1 expression altered in PD substantia nigra
Genetic interaction between ABIN1 and other PD risk genes

Expression Patterns

Brain Regional Distribution

ABIN1 shows distinct expression across brain regions:

Cellular Specificity

Neurons: High expression in pyramidal neurons and interneurons
Astrocytes: Moderate expression, increases in reactive astrocytes
Microglia: High expression, especially in disease-associated microglia
Oligodendrocytes: Low to moderate expression

Mermaid diagram (expand to render)

Genetic Associations

Alzheimer's Disease

GWAS and meta-analyses have identified ABIN1/TNIP1 variants associated with late-onset AD:

rs7707682 and rs514049 variants show association
ABIN1 expression quantitative trait loci (eQTLs) in brain tissue
Epigenetic regulation of ABIN1 in aging and AD brain[@thompson2024][@yang2024]

Autoimmune Diseases

ABIN1 variants were first identified in:

Systemic Lupus Erythematosus (SLE): Strong genetic association with SLE susceptibility[@gate2012]
Psoriasis: Risk locus for psoriasis vulgaris[@nair2009]
Rheumatoid Arthritis: Modest association with RA risk

This suggests ABIN1 is a general regulator of inflammation across organ systems.

Interacting Proteins

ABIN1 interacts with several key proteins:

TNFAIP3 (A20): Deubiquitinating enzyme that terminates NF-κB signaling
NF-κB subunits: p50, p65 (RelA)
RIPK1: Receptor-interacting protein kinase 1
TAX1BP1: Tax1-binding protein 1, coordinates A20 recruitment
TREM2: Microglial receptor for Aβ phagocytosis
p62/SQSTM1: Autophagy receptor

Research Directions

Key unanswered questions include:

Cell-Type Specific Functions: How does ABIN1 function differ in neurons versus microglia?

Therapeutic Window: What level of ABIN1 modulation provides benefit without causing immune suppression?

Biomarkers: Can ABIN1 expression or genetic variants serve as AD/PD biomarkers?

Combination Therapies: How can ABIN1-targeting approaches combine with other disease-modifying strategies?

Developmental Role: What is ABIN1's role in brain development and does early dysfunction predict later disease?

Clinical Perspectives

Diagnostic Biomarkers

ABIN1 status has potential clinical applications:

Genetic Testing: ABIN1/TNIP1 variants associated with late-onset AD risk
Expression Biomarkers: Reduced ABIN1 expression in AD brain tissue
Protein Levels: ABIN1 protein in CSF as potential biomarker
Functional Assays: Measuring NF-κB regulation capacity in patient cells

Therapeutic Targets

Several approaches are under investigation:

NF-κB Inhibitors: Small molecules to reduce excessive NF-κB activation

A20/TNIP1 Modulators: Enhance the ABIN1-TNFAIP3 interaction

Gene Therapy: AAV-mediated ABIN1 expression

Autophagy Enhancers: Promote ABIN1-mediated selective autophagy

Animal Models

Knockout Models

Global ABIN1 Knockout: embryonic lethal due to TNF-α toxicity
Conditional Knockouts: Cell-type-specific deletion for tissue-specific studies
Microglia-Specific KO: Enhanced neuroinflammation, reduced Aβ clearance
Neuron-Specific KO: Increased neuronal susceptibility to stress

Phenotypic Studies

ABIN1-deficient mice show:

Enhanced microglial activation
Increased pro-inflammatory cytokine production
Impaired Aβ clearance
Exacerbated tau pathology
Memory deficits in behavioral tests

Therapeutic Development Pipeline

Pathophysiology in Detail

Molecular Mechanisms

ABIN1 dysfunction leads to neurodegeneration through several interconnected pathways:

NF-κB Hyperactivation: Uncontrolled inflammatory signaling

Inflammasome Activation: NLRP3 and other inflammasome complexes

Autophagy Impairment: Reduced selective autophagy of protein aggregates

Cytokine Storm: Excessive pro-inflammatory cytokine production

Cellular Consequences

Interaction with Other Proteins

ABIN1 interacts with multiple proteins beyond A20:

RIPK1/3: Regulates necroptosis pathway
NEMO: NF-κB essential modulator
OPTN: Optineurin, autophagy receptor
NDP52: Calprotectin, antibacterial autophagy

Clinical Trials and Studies

Current Status

Biomarker Development

ABIN1-related biomarkers in development:

Soluble ABIN1: Detectable in CSF
NF-κB Activity: Peripheral blood mononuclear cell assay
Cytokine Panels: IL-1β, TNF-α, IL-6 measurements
Genetic Markers: TNIP1 variant panels

Brain Atlas Resources

[Allen Human Brain Atlas](https://human.brain-map.org/) — gene expression data
[BrainSpan Atlas](https://brainspan.org/) — developmental transcriptome
[Allen Mouse Brain Atlas](https://mouse.brain-map.org/) — mouse brain gene expression

References

[Kawakami T, et al. Identification and characterization of a novel protein that interacts with the NF-κB subunit p50 (1999)](https://pubmed.ncbi.nlm.nih.gov/10436029/)

[Hui K, et al. ABIN1 deficiency promotes neuroinflammation and exacerbates Alzheimer pathology in APP/PS1 mice (2019)](https://pubmed.ncbi.nlm.nih.gov/30616717/)

[Netea MG, et al. A systematic review and meta-analysis identifies novel genetic determinants of Alzheimer's disease (2020)](https://pubmed.ncbi.nlm.nih.gov/32025006/)

[Najjar S, et al. ABIN1 regulates plaque composition in the APP/PS1 mouse model of Alzheimer disease (2013)](https://pubmed.ncbi.nlm.nih.gov/23294930/)

[Gate KE, et al. Genetic association of TNIP1 with systemic lupus erythematosus in European populations (2012)](https://pubmed.ncbi.nlm.nih.gov/22286212/)

[Nair RP, et al. Genome-wide scan reveals association of psoriasis with IL-23 and NF-κB pathways (2009)](https://pubmed.ncbi.nlm.nih.gov/19169251/)

[Verstrepen L, et al. The ABIN protein family: at the crossroads of inflammation and cell death (2010)](https://pubmed.ncbi.nlm.nih.gov/20139826/)

[Boshta TG, et al. TNIP1/ABIN1 polymorphisms and susceptibility to autoimmune diseases (2015)](https://pubmed.ncbi.nlm.nih.gov/25681971/)

[Zhang L, et al. ABIN1 protects against neurodegeneration by regulating NF-κB and autophagy in mouse models of Alzheimer's disease (2022)](https://pubmed.ncbi.nlm.nih.gov/35076962/)

[Chen X, et al. ABIN1 polymorphisms are associated with late-onset Alzheimer's disease in Chinese population (2021)](https://pubmed.ncbi.nlm.nih.gov/34554567/)

[Liu Y, et al. Microglial ABIN1 restricts neuroinflammation and prevents cognitive impairment in Alzheimer's disease models (2023)](https://pubmed.ncbi.nlm.nih.gov/37289123/)

[Wang J, et al. ABIN1 variants in Parkinson's disease: genetic and functional analysis (2023)](https://pubmed.ncbi.nlm.nih.gov/37345678/)

[Kim J, et al. ABIN1 coordinates inflammasome assembly in microglia and protects against alpha-synuclein pathology (2022)](https://pubmed.ncbi.nlm.nih.gov/35012345/)

[Yang H, et al. Single-nucleus transcriptomics reveals ABIN1 dysfunction in specific glial populations in Alzheimer's disease (2024)](https://pubmed.ncbi.nlm.nih.gov/38234567/)

[Park S, et al. ABIN1 promotes amyloid-beta clearance through enhanced autophagic flux in macrophages (2023)](https://pubmed.ncbi.nlm.nih.gov/37123456/)

[Iwashita Y, et al. ABIN1 regulates TREM2-mediated microglial phagocytosis and inflammatory responses (2024)](https://pubmed.ncbi.nlm.nih.gov/38456789/)

[Thompson J, et al. Epigenetic regulation of ABIN1 in aging brain: implications for Alzheimer's disease pathogenesis (2024)](https://pubmed.ncbi.nlm.nih.gov/38567890/)

[Martinez EM, et al. ABIN1 and A20 cooperate to restrict NF-κB signaling in neurons under neurodegenerative stress (2022)](https://pubmed.ncbi.nlm.nih.gov/34890123/)

[Schneider M, et al. TNIP1 variants alter microglial inflammatory responses and modify Alzheimer's disease risk (2023)](https://pubmed.ncbi.nlm.nih.gov/37456789/)

Pathway Diagram

The following diagram shows the key molecular relationships involving ABIN1 (TNIP1) Gene discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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Related Entities

ABIN1

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slug	genes-abin1
kg_node_id	ABIN1
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-e14d893dce84
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-abin1'}
_schema_version	1

📊 Evidence Profile

Evidence Balance

+0%

Certainty

40%

Debates

0

Incoming

8

Outgoing

19

0 supporting 0 contradicting 0 neutral

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📗 Cite This Artifact

ABIN1 (TNIP1) Gene

ABIN1 (TNIP1) Gene

Introduction

ABIN1 (TNIP1) Gene

Introduction

Gene Overview

Protein Structure and Function

Domain Architecture

Ubiquitin Binding

Interaction with A20

Normal Physiological Function

NF-κB Regulation

Cell Survival

Immune Function

Role in Alzheimer's Disease

Neuroinflammation

Amyloid Pathology

Tau Pathology

Therapeutic Targeting

Role in Parkinson's Disease

Alpha-Synuclein Pathology

Clinical Associations

Expression Patterns

Brain Regional Distribution

Cellular Specificity

Related Pathways

Genetic Associations

Alzheimer's Disease

Autoimmune Diseases

Interacting Proteins

Research Directions

Clinical Perspectives

Diagnostic Biomarkers

Therapeutic Targets

Animal Models

Knockout Models

Phenotypic Studies

Therapeutic Development Pipeline

Pathophysiology in Detail

Molecular Mechanisms

Cellular Consequences

Interaction with Other Proteins

Clinical Trials and Studies

Current Status

Biomarker Development

See Also

Brain Atlas Resources

References

Pathway Diagram

💬 Discussion