HDAC8 Protein

HDAC8 Protein

Overview

Hdac8 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.

Introduction

Hdac8 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

HDAC8 Protein

Overview

Hdac8 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.

Introduction

Hdac8 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

<div class="infobox infobox-protein">
<table>
<tr><th colspan="2" style="background:#e8f4f8; text-align:center; font-size:1.1em;">Histone Deacetylase 8 Protein</th></tr>
<tr><td><strong>Protein Name</strong></td><td>Histone Deacetylase 8</td></tr>
<tr><td><strong>Gene</strong></td><td>[HDAC8](/genes/hdac8)</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[Q9BVI0](https://www.uniprot.org/uniprot/Q9BVI0)</td></tr>
<tr><td><strong>PDB Structure</strong></td><td>2V5X, 3EW8, 4QA0</td></tr>
<tr><td><strong>Molecular Weight</strong></td><td>42 kDa</td></tr>
<tr><td><strong>Subcellular Localization</strong></td><td>Nucleus</td></tr>
<tr><td><strong>Protein Family</strong></td><td>Class I Histone Deacetylase</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/glaucoma" style="color:#ef9a9a">Glaucoma</a>, <a href="/wiki/inflammation" style="color:#ef9a9a">Inflammation</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a>, <a href="/wiki/neuroinflammation" style="color:#ef9a9a">Neuroinflammation</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">15 edges</a></td>
</tr>
</table>
</div>

Overview

IKKα (IκB kinase α) is a serine/threonine protein kinase that plays a central role in the [NF-κB](/entities/nf-kb) signaling pathway. IKKα, along with IKKβ and the regulatory subunit IKKγ (NEMO), forms the IKK complex that phosphorylates IκBα, leading to NF-κB activation. IKKα contains an N-terminal kinase domain, a helix-loop-helix domain, and a leucine zipper for dimerization. Unlike IKKβ, IKKα is involved in alternative NF-κB pathway activation via processing of p100 to p52. In the central nervous system, IKKα regulates neuronal survival, synaptic plasticity, and microglial activation. IKKα activity is implicated in Alzheimer's disease (amyloid-β-induced inflammation), Parkinson's disease (dopaminergic neuron survival), and multiple sclerosis. Therapeutic targeting of IKKα with selective inhibitors may reduce neuroinflammation while preserving neuronal function.

Structure

HDAC8 is a 377-amino acid class I histone deacetylase with a conserved catalytic domain. Unlike other class I HDACs, HDAC8 has unique structural features including a central pocket and loops that regulate substrate access. The enzyme requires zinc ions for catalytic activity.

Normal Function

HDAC8 catalyzes the removal of acetyl groups from lysine residues on histones and non-histone proteins. It regulates gene expression programs involved in cell cycle progression, development, and differentiation. HDAC8 substrates include not only histones but also transcription factors and structural proteins.

Role in Disease

| Disease | Mechanism | Evidence |
|---------|-----------|----------|
| Cornelia de Lange Syndrome | Mutations in HDAC8 cause X-linked CdLS with developmental abnormalities. | Genetic studies |
| Cancer | Overexpression in various cancers; HDAC8 promotes tumor growth. | Clinical studies |
| Neurodevelopmental disorders | Altered neuronal development due to HDAC8 dysfunction. | Model systems |

Therapeutic Targeting

• HDAC8 selective inhibitors: PCI-34051, FK228 (romidepsin)
• Broad-spectrum [HDAC](/entities/hdac-enzymes) inhibitors: For cancer therapy
• Structure-based design: Developing more selective agents

Key Publications

See Also

• [HDAC8 Gene](/genes/hdac8)
• [Epigenetic Mechanisms](/mechanisms/epigenetic-regulation-neurodegeneration)
• [Cornelia de Lange Syndrome](/diseases/cornelia-de-lange-syndrome)

Overview

Hdac8 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.

Background

The study of Hdac8 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

• [PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
• [Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
• [Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data

References

<references>

• Bottomley MJ, et al. (2008). HDAC8 structure. Nat Chem Biol 4: 152-157.
• Ropero S, et al. (2008). HDACs in cancer. Hum Mol Genet 17: R56-R65.