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Enzyme Activity and Composition of Myelin and Subcellular Fractions in the Developing Rat Brain

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Journal Biochem J
Specialty Biochemistry
Date 1969 Dec 1
PMID 4243351
Citations 32
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Abstract

1. Subcellular fractions and myelin were isolated from developing and adult rat brain. 2. Measurements of chemical composition and enzyme activities indicate the presence of a second myelin-like fraction mainly in the brain of developing rats. 3. This membrane fraction has a different lipid composition from myelin, but resembles myelin in its content of phosphohydrolase and aminopeptidase activity. 4. It is suggested that the second myelin-like fraction may be a submicrosomal contaminant or it may be derived from oligodendroglial plasma membrane during myelinogenesis.

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