Ndp52 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.
{{Infobox protein
|name=NDP52
|full_name=Calcium Binding and Coiled-Coil Domain 2
|gene=CALCOCO2
|uniprot=O76071
|pdb=4G21
|mw=52 kDa
|location=Cytoplasm, Golgi, autophagosomes
|family=Selective autophagy receptors
}}
NDP52 (CALCOCO2) is a selective autophagy receptor that plays critical roles in targeting specific cargo for autophagic degradation. Originally identified as a coactivator for transcription factors, NDP52 has emerged as a key player in innate immunity and selective autophagy of damaged organelles and intracellular pathogens. The protein contains multiple functional domains that enable it to recognize ubiquitinated cargo and recruit autophagosomal machinery. NDP52 is particularly important for the clearance of damaged mitochondria through mitophagy and for defense against intracellular bacteria.
NDP52 contains several critical structural elements:
NDP52 serves as a cargo receptor for selective autophagy:
Beyond autophagy, NDP52:
NDP52 is expressed in various tissues:
NDP52 has emerging roles in AD:
NDP52 is critical for PD:
NDP52-based therapeutics are being explored:
Active research areas:
The study of Ndp52 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.
[1] Korac et al. (2013) Nat Rev Neurosci 14:541-554
[2] Lazarou et al. (2015) Nature 524:309-314
[3] Thurfjell et al. (2010) J Cell Sci 123:757-766
Last updated: 2026-03-04
NDP52 (Nuclear Domain 10 Protein 52), also known as CALCOCO2, is a selective autophagy receptor involved in targeting damaged organelles and intracellular pathogens for lysosomal degradation. The protein contains an LC3-interacting region (LIR) that allows it to bind to LC3/GABARAP proteins on autophagosomal membranes.
NDP52 plays critical roles in mitophagy (selective degradation of mitochondria), xenophagy (selective degradation of intracellular pathogens), and aggrephagy (selective degradation of protein aggregates). The protein also functions in NF-kB signaling and innate immunity.
Parkinson's Disease: NDP52 is involved in mitophagy, the process by which damaged mitochondria are selectively eliminated. Defects in mitophagy are central to PD pathogenesis, as PINK1 and Parkin mutations impair this pathway. NDP52 may serve as an alternative mitophagy receptor.
Alzheimer's Disease: NDP52 may be involved in clearing amyloid-beta aggregates and damaged organelles. The protein's role in autophagy is relevant for AD pathogenesis.
ALS: NDP52 may help clear protein aggregates characteristic of ALS, including TDP-43 and SOD1 aggregates. The protein could have therapeutic potential.
Enhancing NDP52-mediated selective autophagy could provide therapeutic benefits for neurodegenerative diseases by improving clearance of toxic protein aggregates and damaged organelles.
Research focuses on understanding how NDP52 dysfunction contributes to neurodegeneration and developing therapies that enhance selective autophagy.