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Expression of rab GTP-binding proteins during oligodendrocyte differentiation in culture

✍ Scribed by B.P. Bouverat; W.H. Krueger; T. Coetzee; R. Bansal; S.E. Pfeiffer

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
138 KB
Volume
59
Category
Article
ISSN
0360-4012

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✦ Synopsis

Oligodendrocytes (OLs) synthesize and transport vast amounts of proteins and lipids from the cell body to the morphologically and biochemically distinct domains of the myelin membrane. From our prediction that regulators of vesicular transport should be up-regulated at the time of myelin production, we hypothesized that the upregulated and unidentified small GTPases found by Huber et al. [1994a] may be Rab proteins. We have analyzed the mRNA expression of rabs in OLs, and have detected rabs 10, 11b, 18, 24, 26, and 28 in addition to rabs that were found previously. Our data show that among the Rabs so far detected during differentiation, only Rabs 5a and 8a exhibited up-regulation in addition to the previously published Rab3a (Madison et al. [1999]

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