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Netrin-G2 (NTNG2)
- Target
- NTNG2
- Molecular classification
- Cell adhesion molecule, Axon guidance molecule, Membrane-anchored protein (GPI-anchored), Other (vertebrate-specific netrin subfamily)
01
Overview
Netrin-G2 (NTNG2) is a vertebrate-specific, membrane-anchored axon guidance and synaptic cell adhesion molecule that plays a fundamental role in forming, maintaining, and diversifying neuronal circuits in the central nervous system[1][3][2]. Its extracellular domain mediates specific binding to its postsynaptic receptor NGL2, contributing to synaptic network organization and NMDA receptor-mediated signaling. NTNG2 is crucial for proper brain development and higher cognitive functions, with marked enrichment in regions such as the temporal lobe, claustrum, and insular cortex. Alterations in NTNG2 expression or pathogenic mutations have been implicated in diverse neurodevelopmental disorders (including intellectual disability and autism), epilepsy, and certain psychiatric disorders[3][1]. NTNG2 is also a prognostic biomarker in some cancers, but there are no known drugs or targeted therapeutics for this molecule as of now[4][5].
- Other names
- Netrin G2KIAA1857LMNT2UNQ9381/PRO34206laminet-2Lmnt2LHLL9381NEDBASHNetrinG2bA479K20.1netrin-G2laminet 2
02
Biological functions
AxonogenesisRegulation of neuron migrationCell projection organizationSynaptic cell adhesionSynapse formation and maintenanceNeurite outgrowthOrganization of synaptic networks
03
Disease associations
Neurodevelopmental disorder (including intellectual disability, developmental delay, autism, Rett-like features)EpilepsySchizophreniaBipolar disorderGlioblastoma multiforme (prognostic marker)Prostate adenocarcinoma (prognostic marker)Rectum adenocarcinoma (prognostic marker)
04
Safety considerations
Potential involvement in brain development and neurodevelopmental phenotypes (e.g., mutation leads to severe intellectual disability and developmental delay)Disruption may cause defects in neuronal morphology, neurite outgrowth, and synaptic connectivity
05
Biomarkers
Prognostic marker in glioblastoma multiformePrognostic marker in prostate adenocarcinomaPrognostic marker in rectum adenocarcinoma
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