STRAD pseudokinases regulate axogenesis and LKB1 stability.
STRAD pseudokinases regulate axogenesis and LKB1 stability.
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DOI:
10.1186/1749-8104-9-5
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发表时间:
2014-03-04
影响因子:
3.6
通讯作者:
Barnes AP
中科院分区:
文献类型:
--
作者:
Veleva-Rotse BO;Smart JL;Baas AF;Edmonds B;Zhao ZM;Brown A;Klug LR;Hansen K;Reilly G;Gardner AP;Subbiah K;Gaucher EA;Clevers H;Barnes AP
Neuronal polarization is an essential step of morphogenesis and connectivity in the developing brain. The serine/threonine kinase LKB1 is a key regulator of cell polarity, metabolism, tumorigenesis, and is required for axon formation. It is allosterically regulated by two related and evolutionarily conserved pseudokinases, STe20-Related ADapters (STRADs) α and β. The roles of STRADα and STRADβ in the developing nervous system are not fully defined, nor is it known whether they serve distinct functions. We find that STRADα is highly spliced and appears to be the primal STRAD paralog. We report that each STRAD is sufficient for axogenesis and promoting cell survival in the developing cortex. We also reveal a reciprocal protein-stabilizing relationship in vivo between LKB1 and STRADα, whereby STRADα specifically maintains LKB1 protein levels via cytoplasmic compartmentalization. We demonstrate a novel role for STRADβ in axogenesis and also show for the first time in vivo that STRADα, but not STRADβ, is responsible for LKB1 protein stability.
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影响因子:
--
作者:
Hawley SA;Boudeau J;Reid JL;Mustard KJ;Udd L;Mäkelä TP;Alessi DR;Hardie DG
通讯作者:
Hardie DG
影响因子:
4.8
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通讯作者:
Marcus, Adam I.
影响因子:
4.6
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Zhen, Mei
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通讯作者:
Alessi, DR
影响因子:
14.8
作者:
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通讯作者:
Banker, Gary