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The relationship of myelin basic protein (arginine) methyltransferase to myelination in mouse spinal cord
Abstract:
The relationship between the activity of myelin basic protein (arginine) methyltransferase and myelination in the mouse spinal cord has been examined. The activity of this methylase increases between 8 and 45 days postnatal age and correlates well with other parameters of myelination. A comparison of myelin basic protein methylase with histone methylase activity during development indicates that each is a distinct, specific enzyme activity. Together, these results are considered to establish myelin based protein methylase as a myelination-related enzyme.
Insights
Myelin basic protein methyltransferase activity increases with spinal cord myelination in mice. This enzyme is distinct from histone methylase, establishing it as a key myelination-related enzyme.
Area of Science:
- Neuroscience
- Biochemistry
- Developmental Biology
Background:
- Myelination is crucial for proper nervous system function.
- The enzymes involved in myelin formation are not fully understood.
Purpose of the Study:
- To investigate the role of myelin basic protein (arginine) methyltransferase in mouse spinal cord myelination.
- To determine if myelin basic protein methyltransferase activity correlates with myelination.
- To differentiate myelin basic protein methyltransferase from histone methylase activity.
Main Methods:
- Assaying myelin basic protein (arginine) methyltransferase activity in mouse spinal cord tissue.
- Measuring enzyme activity across different postnatal ages (8-45 days).
- Comparing myelin basic protein methyltransferase activity with histone methylase activity.
Main Results:
- Myelin basic protein (arginine) methyltransferase activity significantly increased between 8 and 45 days postnatal.
- The enzyme's activity showed a strong correlation with established parameters of myelination.
- Myelin basic protein methyltransferase activity was found to be distinct from histone methylase activity.
Conclusions:
- Myelin basic protein (arginine) methyltransferase is a myelination-related enzyme.
- Its developmental profile supports a role in the myelination process.
- This enzyme represents a specific marker for myelination in the central nervous system.