SENP2 — SUMO Specific Peptidase 2

SENP2 Protein

Introduction

Senp2 — Sumo Specific Peptidase 2 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;">SENP2 Protein</th></tr>
<tr><td><strong>Protein Name</strong></td><td>SUMO-specific protease 2</td></tr>
<tr><td><strong>Gene Symbol</strong></td><td>SENP2</td></tr>
<tr><td><strong>NCBI Gene ID</strong></td><td>[59343](https://www.ncbi.nlm.nih.gov/gene/59343)</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[Q9Y2W1](https://www.uniprot.org/uniprot/Q9Y2W1)</td></tr>
<tr><td><strong>MW</strong></td><td>68 kDa</td></tr>
<tr><td><strong>Subcellular Location</strong></td><td>Nucleus (Nuclear pore), Cytoplasm</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">8 edges</a></td>
</tr>
</table>
</div>

Overview

SENP2 Protein

Introduction

Senp2 — Sumo Specific Peptidase 2 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;">SENP2 Protein</th></tr>
<tr><td><strong>Protein Name</strong></td><td>SUMO-specific protease 2</td></tr>
<tr><td><strong>Gene Symbol</strong></td><td>SENP2</td></tr>
<tr><td><strong>NCBI Gene ID</strong></td><td>[59343](https://www.ncbi.nlm.nih.gov/gene/59343)</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[Q9Y2W1](https://www.uniprot.org/uniprot/Q9Y2W1)</td></tr>
<tr><td><strong>MW</strong></td><td>68 kDa</td></tr>
<tr><td><strong>Subcellular Location</strong></td><td>Nucleus (Nuclear pore), Cytoplasm</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">8 edges</a></td>
</tr>
</table>
</div>

Overview

SENP2 (SUMO-specific protease 2) is a nuclear envelope-associated SUMO protease that plays critical roles in regulating nucleocytoplasmic transport, nuclear pore complex (NPC) function, and various signaling pathways["@hickey2012"]. Unlike SENP1 which has broad substrate specificity, SENP2 has more specific roles in processing SUMO-2/3 chains and regulating nuclear envelope proteins["@gong2010"]. SENP2 dysfunction has been implicated in neurodegenerative diseases, cancer, and cardiovascular disorders.

Molecular Function

SUMO Protease Specificity

SENP2 has distinct substrate preferences:

• SUMO-2/3 processing: Prefers SUMO-2 and SUMO-3 precursors
• Chain editing: Efficiently processes SUMO-2/3 chains
• Spatial restriction: Functions at the nuclear envelope
• RANGAP1 processing: Critically processes RANGAP1 for RanGAP1 SUMOylation

Nuclear Pore Complex Regulation

SENP2 is uniquely positioned to regulate NPC function[@wu2009]:

• Nuclear pore association: Localizes to cytoplasmic filaments of NPC
• RANGAP1 cycle: Regulates the SUMOylation/deSUMOylation cycle of RanGAP1
• Nuclear transport: Modulates nucleocytoplasmic transport
• NPC assembly: Influences NPC biogenesis

Signaling Pathway Regulation

• Hippo pathway: Modulates YAP/TAZ transcriptional co-activators
• Wnt/β-catenin: Affects β-catenin stability
• p53 family: Regulates p73 function

Disease Associations

Alzheimer's Disease

• [Tau](/proteins/tau) pathology: SENP2 may regulate tau SUMOylation and aggregation[@luo2012]
• Nuclear pore dysfunction: NPC defects observed in AD [neurons](/entities/neurons)
• Gene expression: Altered SUMOylation affects neuronal survival genes
• Therapeutic potential: SENP2 as a target

Parkinson's Disease

• [α-Synuclein](/proteins/alpha-synuclein): Can modulate α-synuclein SUMOylation
• Mitochondrial quality control: Affects PINK1/Parkin pathway
• ER stress: Modulates ER stress response

Cancer

• Oncogenic roles: SENP2 overexpression in some cancers
• Metastasis: Regulation of epithelial-mesenchymal transition
• Therapeutic targeting: SENP2 inhibitors

Pathway Interactions

Ran GTPase Cycle

• RanGAP1: Primary substrate, essential for nuclear export[@stade2002]
• RANGAP1: Provides SUMOylation/deSUMOylation cycle
• RANBP1/NUP358: Coordination at nuclear pore

SUMOylation Pathway

• SUMO1, SUMO2, SUMO3: Primary substrates
• UBC9: E2 conjugating enzyme
• PIAS family: E3 ligases
• SENP1, SENP3-7: Other SUMO proteases

Nuclear Pore Complex

• NUP107-160 complex: Affects NPC assembly
• NUP153: Nuclear basket component
• NUP358/RanBP2: Sumoylation at the NPC

Therapeutic Implications

Modulator Development

• SENP2-specific inhibitors: More challenging due to structural similarities
• Targeted delivery: Brain-penetrant small molecules
• Combination approaches: With other SUMO pathway modulators

Biomarker Potential

• SENP2 activity: As a disease biomarker
• Substrate monitoring: RANGAP1 SUMOylation status

Background

The study of Senp2 — Sumo Specific Peptidase 2 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.

See Also

• SENP2 Gene
• [SENP1 Protein](/proteins/senp1-protein)
• SUMOylation Pathway
• Nuclear Pore Complex Pathway
• [Alzheimer's Disease Mechanisms](/mechanisms/alzheimers-disease-mechanisms)
• [Parkinson's Disease Mechanisms](/mechanisms/parkinsons-disease-mechanisms)

Pathway Diagram

The following diagram shows the key molecular relationships involving SENP2 — SUMO Specific Peptidase 2 discovered through SciDEX knowledge graph analysis: