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Updated: Jun 22, 2026

Purification of Hsp104, a Protein Disaggregase
Published on: September 30, 2011
Characterization of a specific interaction between ADAM23 and cellular prion protein
Michele D M Costa1, Katia S Paludo, Giseli Klassen
1Department of Basic Pathology, Universidade Federal do Paraná, Centro Politécnico, 81531-990 Curitiba, PR, Brazil.
Cellular prion protein (PrP(C)) interacts with ADAM23, a protein crucial for nervous system development. This discovery reveals PrP(C) as a new binding partner for ADAM23 in the central nervous system.
Area of Science:
- Neuroscience
- Molecular Biology
- Biochemistry
Background:
- ADAMs are transmembrane proteins involved in vital biological processes.
- ADAM23 is primarily expressed in the central nervous system.
Purpose of the Study:
- To investigate the interaction between ADAM23 and cellular prion protein (PrP(C)).
- To identify PrP(C) as a novel molecular partner for ADAM23 in the nervous system.
Main Methods:
- Co-localization studies in mouse hippocampal neurons and neuroblastoma cells.
- Co-immunoprecipitation and pull-down assays to confirm physical interaction.
- In vitro binding assays to determine the interaction domain.
Main Results:
- ADAM23 and PrP(C) co-localize at the plasma membrane.
- A physical interaction was confirmed between ADAM23 and both recombinant and endogenous PrP(C).
- The disintegrin domain of ADAM23 directly interacts with PrP(C), independent of glycosylation.
Conclusions:
- PrP(C) is identified as a novel molecular partner for ADAM23.
- This interaction occurs within the nervous system.
- Findings contribute to understanding protein interactions in neuronal function.
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