Cntfr 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.
Overview
CNTFRα (Ciliary Neurotrophic Factor Receptor Alpha) is a GPI-anchored protein that forms the ligand-binding component of the CNTNF receptor complex. It is essential for CNTF and cardiotrophin-1 (CT-1) signaling in the nervous system. CNTFRα plays critical roles in motor neuron survival, astrocyte function, and neural development.
The receptor is unique among neurotrophic factor receptors as it lacks a transmembrane domain and is anchored to the cell surface via a glycosylphosphatidylinositol (GPI) linkage. This allows for soluble CNTFRα to be shed and function as a decoy receptor or carrier protein.
Protein Structure
Domain Architecture
Structural Features
Beta-sandwich fold: Characteristic of cytokine receptor families
N-linked glycosylation: Multiple sites for carbohydrate addition
Dimerization interface: Required for high-affinity binding
GPI modification: C-terminal signal sequence
Expression Pattern
Brain Regional Distribution
CNTFRα is expressed in:
Spinal cord: High in motor [neurons](/entities/neurons)
Davis S, et al. Isolation of a gene encoding a functional receptor for ciliary neurotrophic factor. Science. 1991;253(5024):1138-1141. PMID: 1840764(https://pubmed.ncbi.nlm.nih.gov/1840764/)
Ip NY, et al. The CNTF receptor complex: tripartite assembly. Trends Neurosci. 1993;16(8):306-310.
Sendtner M, et al. Ciliary neurotrophic factor. Curr Opin Neurobiol. 1994;4(3):413-418.
Stockli KA, et al. Molecular cloning and expression of CNTF receptor. Nature. 1991;352(6334):340-343.
Boulton TG, et al. CNTFR signaling through JAK/STAT and MAPK pathways. Cell. 1994;77(5):727-736.
Background
The study of Cntfr 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.