Fzd3 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.
FZD3 (Frizzled-3) is a seven-transmembrane receptor protein that functions as the primary receptor for non-canonical Wnt signaling, particularly the planar cell polarity (PCP) pathway. It plays critical roles in neuronal migration, axon guidance, and synaptic formation during development and in adult brain function.
Structure
Transmembrane Domain
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FZD3 Protein - Frizzled-3 Receptor
Introduction
Fzd3 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.
FZD3 (Frizzled-3) is a seven-transmembrane receptor protein that functions as the primary receptor for non-canonical Wnt signaling, particularly the planar cell polarity (PCP) pathway. It plays critical roles in neuronal migration, axon guidance, and synaptic formation during development and in adult brain function.
Structure
Transmembrane Domain
FZD3 contains seven transmembrane α-helices typical of G-protein-coupled receptors:
N-terminal extracellular cysteine-rich domain (CRD) for Wnt ligand binding
Three extracellular loops
Three intracellular loops
C-terminal intracellular tail with PDZ-binding motif
Crystal Structure
The CRD domain of FZD3 has been solved (PDB: 6MQJ), revealing:
The study of Fzd3 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.