ZBP1 Protein is a protein that zbp1 is a key innate immune sensor with important roles in defense and cell death:. This page describes its structure, normal nervous system function, role in neurodegenerative disease, and potential as a therapeutic target.
| Protein Name | Z-DNA Binding Protein 1 (ZBP1) |
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| Gene | [ZBP1](/genes/zbp1) |
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| UniProt ID | Q9Y236 |
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| PDB Structure | 5E8J, 5E8K |
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| Molecular Weight | ~46 kDa |
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| Subcellular Localization | Cytoplasm, nucleus |
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| Protein Family | ZBP1 family |
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ZBP1 contains multiple functional domains:
- Zα Domain: N-terminal Z-DNA binding domain that recognizes left-handed DNA helices
- Zβ Domain: Alternative Z-DNA binding domain with distinct specificity
- RNA Binding Domain: Central region for RNA binding
- RHIM Motif: RIP Homotype Interaction Motif for interacting with RIPK1/RIPK3
- Proline-Rich Region: Mediates protein-protein interactions
ZBP1 is a key innate immune sensor with important roles in defense and cell death:
- Viral Detection: Recognizes viral RNAs and DNA structures to initiate antiviral responses
- Necroptosis Activation: Forms a necrosome with RIPK1 and RIPK3 to execute necroptosis
- Interferon Induction: Triggers type I interferon responses upon pathogen detection
- Cellular Stress Response: Activated by various cellular stresses including ER stress
ZBP1 is implicated in neurodegenerative diseases through necroptosis:
- Alzheimer's Disease: ZBP1-mediated necroptosis contributes to neuronal death
- Parkinson's Disease: ZBP1 activation observed in dopaminergic neuron degeneration
- Amyotrophic Lateral Sclerosis: ZBP1 contributes to motor neuron death
- Multiple Sclerosis: ZBP1 involved in demyelination and glial cell death
- Stroke: ZBP1-necroptosis pathway contributes to ischemic brain damage
- Traumatic Brain Injury: ZBP1 activation after CNS injury
- Prion Disease: ZBP1 involved in prion-induced neurodegeneration
- Oncogenic Role: ZBP1 can suppress or promote tumor growth depending on context
- Immunotherapy Target: ZBP1 activation enhances cancer immunotherapy efficacy
Therapeutic strategies include:
- Necroptosis Inhibitors: RIPK1/RIPK3 inhibitors block ZBP1-mediated cell death
- ZBP1 Targeting: Small molecules to inhibit ZBP1 activation
- Immunomodulation: Modulating ZBP1 for neuroprotection
- Combination Therapy: ZBP1 inhibitors with other neuroprotective agents
- ZBP1 as a viral sensor (2012)
- ZBP1-mediated necroptosis in neurodegeneration (2018)
- ZBP1 in ALS (2019)
- Targeting necroptosis for neuroprotection (2020)