Regulation of microtubule stability and organization by mammalian Par3 in specifying neuronal polarity. Chen, S., Chen, J., Shi, H., Wei, M., Castaneda-Castellanos, D. R, Bultje, R. S, Pei, X., Kriegstein, A. R, Zhang, M., & Shi, S. Dev Cell, 24(1):26–40, December, 2012. abstract bibtex Polarization of mammalian neurons with a specified axon requires precise regulation of microtubule and actin dynamics in the developing neurites. Here we show that mammalian partition defective 3 (mPar3), a key component of the Par polarity complex that regulates the polarization of many cell types including neurons, directly regulates microtubule stability and organization. The N-terminal portion of mPar3 exhibits strong microtubule binding, bundling, and stabilization activity, which can be suppressed by its C-terminal portion via an intramolecular interaction. Interestingly, the intermolecular oligomerization of mPar3 is able to relieve the intramolecular interaction and thereby promote microtubule bundling and stabilization. Furthermore, disruption of this microtubule regulatory activity of mPar3 impairs its function in axon specification. Together, these results demonstrate a role for mPar3 in directly regulating microtubule organization that is crucial for neuronal polarization.
@ARTICLE{Chen2012-yi,
title = "Regulation of microtubule stability and organization by mammalian
Par3 in specifying neuronal polarity",
author = "Chen, She and Chen, Jia and Shi, Hang and Wei, Michelle and
Castaneda-Castellanos, David R and Bultje, Ronald S and Pei, Xin
and Kriegstein, Arnold R and Zhang, Mingjie and Shi, Song-Hai",
abstract = "Polarization of mammalian neurons with a specified axon requires
precise regulation of microtubule and actin dynamics in the
developing neurites. Here we show that mammalian partition
defective 3 (mPar3), a key component of the Par polarity complex
that regulates the polarization of many cell types including
neurons, directly regulates microtubule stability and
organization. The N-terminal portion of mPar3 exhibits strong
microtubule binding, bundling, and stabilization activity, which
can be suppressed by its C-terminal portion via an intramolecular
interaction. Interestingly, the intermolecular oligomerization of
mPar3 is able to relieve the intramolecular interaction and
thereby promote microtubule bundling and stabilization.
Furthermore, disruption of this microtubule regulatory activity
of mPar3 impairs its function in axon specification. Together,
these results demonstrate a role for mPar3 in directly regulating
microtubule organization that is crucial for neuronal
polarization.",
journal = "Dev Cell",
volume = 24,
number = 1,
pages = "26--40",
month = dec,
year = 2012,
language = "en"
}
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R","Zhang, M.","Shi, S."],"bibdata":{"bibtype":"article","type":"article","title":"Regulation of microtubule stability and organization by mammalian Par3 in specifying neuronal polarity","author":[{"propositions":[],"lastnames":["Chen"],"firstnames":["She"],"suffixes":[]},{"propositions":[],"lastnames":["Chen"],"firstnames":["Jia"],"suffixes":[]},{"propositions":[],"lastnames":["Shi"],"firstnames":["Hang"],"suffixes":[]},{"propositions":[],"lastnames":["Wei"],"firstnames":["Michelle"],"suffixes":[]},{"propositions":[],"lastnames":["Castaneda-Castellanos"],"firstnames":["David","R"],"suffixes":[]},{"propositions":[],"lastnames":["Bultje"],"firstnames":["Ronald","S"],"suffixes":[]},{"propositions":[],"lastnames":["Pei"],"firstnames":["Xin"],"suffixes":[]},{"propositions":[],"lastnames":["Kriegstein"],"firstnames":["Arnold","R"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Mingjie"],"suffixes":[]},{"propositions":[],"lastnames":["Shi"],"firstnames":["Song-Hai"],"suffixes":[]}],"abstract":"Polarization of mammalian neurons with a specified axon requires precise regulation of microtubule and actin dynamics in the developing neurites. Here we show that mammalian partition defective 3 (mPar3), a key component of the Par polarity complex that regulates the polarization of many cell types including neurons, directly regulates microtubule stability and organization. The N-terminal portion of mPar3 exhibits strong microtubule binding, bundling, and stabilization activity, which can be suppressed by its C-terminal portion via an intramolecular interaction. Interestingly, the intermolecular oligomerization of mPar3 is able to relieve the intramolecular interaction and thereby promote microtubule bundling and stabilization. Furthermore, disruption of this microtubule regulatory activity of mPar3 impairs its function in axon specification. Together, these results demonstrate a role for mPar3 in directly regulating microtubule organization that is crucial for neuronal polarization.","journal":"Dev Cell","volume":"24","number":"1","pages":"26–40","month":"December","year":"2012","language":"en","bibtex":"@ARTICLE{Chen2012-yi,\n title = \"Regulation of microtubule stability and organization by mammalian\n Par3 in specifying neuronal polarity\",\n author = \"Chen, She and Chen, Jia and Shi, Hang and Wei, Michelle and\n Castaneda-Castellanos, David R and Bultje, Ronald S and Pei, Xin\n and Kriegstein, Arnold R and Zhang, Mingjie and Shi, Song-Hai\",\n abstract = \"Polarization of mammalian neurons with a specified axon requires\n precise regulation of microtubule and actin dynamics in the\n developing neurites. Here we show that mammalian partition\n defective 3 (mPar3), a key component of the Par polarity complex\n that regulates the polarization of many cell types including\n neurons, directly regulates microtubule stability and\n organization. The N-terminal portion of mPar3 exhibits strong\n microtubule binding, bundling, and stabilization activity, which\n can be suppressed by its C-terminal portion via an intramolecular\n interaction. Interestingly, the intermolecular oligomerization of\n mPar3 is able to relieve the intramolecular interaction and\n thereby promote microtubule bundling and stabilization.\n Furthermore, disruption of this microtubule regulatory activity\n of mPar3 impairs its function in axon specification. Together,\n these results demonstrate a role for mPar3 in directly regulating\n microtubule organization that is crucial for neuronal\n polarization.\",\n journal = \"Dev Cell\",\n volume = 24,\n number = 1,\n pages = \"26--40\",\n month = dec,\n year = 2012,\n language = \"en\"\n}\n\n","author_short":["Chen, S.","Chen, J.","Shi, H.","Wei, M.","Castaneda-Castellanos, D. R","Bultje, R. S","Pei, X.","Kriegstein, A. 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