Tmem199 Gene 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
The TMEM199 gene (Transmembrane Protein 199) encodes a poorly characterized multipass transmembrane protein localizing to the endoplasmic reticulum (ER). Recent studies have implicated TMEM199 in iron-sulfur cluster (Fe-S) assembly and cellular iron metabolism, processes that are critically impaired in several neurodegenerative diseases. [@tmema]
Gene Information
Protein Structure
TMEM199 is a 299-amino acid multipass transmembrane protein with:
Tmem199 Gene 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
The TMEM199 gene (Transmembrane Protein 199) encodes a poorly characterized multipass transmembrane protein localizing to the endoplasmic reticulum (ER). Recent studies have implicated TMEM199 in iron-sulfur cluster (Fe-S) assembly and cellular iron metabolism, processes that are critically impaired in several neurodegenerative diseases. [@tmema]
Gene Information
Protein Structure
TMEM199 is a 299-amino acid multipass transmembrane protein with:
Six predicted transmembrane domains
ER retention signal
Conserved domains of unknown function (DUF)
Molecular Function
The exact function of TMEM199 is still being elucidated, but current research suggests:
Iron-Sulfur Cluster Assembly: Participates in Fe-S cluster biogenesis
ER Homeostasis: Maintains ER calcium and redox balance
Mitochondrial Iron Metabolism: May regulate iron trafficking to mitochondria
Cellular Iron Regulation: Modulates transferrin and ferritin metabolism
Expression Pattern
TMEM199 is expressed in most tissues with highest expression in:
Liver
Brain ([neurons](/entities/neurons) and glia)
Heart
Skeletal muscle
In the brain, expression is detected in:
Cerebral [cortex](/brain-regions/cortex)
[Hippocampus](/brain-regions/hippocampus)
Cerebellum
Substantia nigra
Disease Associations
Neurodegeneration with Brain Iron Accumulation (NBIA)
TMEM199 is a candidate gene for NBIA spectrum disorders
Iron accumulation in the globus pallidus and substantia nigra
Phenotypic overlap with other NBIA subtypes (PKAN, PLAN, FA2H)
The study of Tmem199 Gene 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.
See Also
[Iron Metabolism](/mechanisms/iron-metabo- [Mitochondrial Dysfunction](/mechanisms/mitochondrial-dysfunction)lar iron handling