Unknown,Transcriptomics,Genomics,Proteomics

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The CrebA/Creb3-like transcription factors are major and direct regulators of secretory capacity


ABSTRACT: Abstract: Secretion occurs in all cells, with relatively low levels in most cells and extremely high levels in specialized secretory cells, such as those of the pancreas, salivary and mammary glands. Here, we report that the CrebA/Creb3-like family of bZip transcription factors functions to upregulate expression of both the general protein machinery required in all cells for secretion and of cell-type specific secreted proteins. Drosophila CrebA directly binds the enhancers of secretory pathway genes and is both necessary and sufficient to activate expression of every secretory pathway component gene examined thus far. Microarray profiling reveals that CrebA also upregulates expression of genes encoding cell type specific secreted components. Finally, we find that the human CrebA orthologues, Creb3L1 and Creb3L2, have the ability to upregulate the secretory pathway in non-secretory cell types. This SuperSeries is composed of the following subset Series: GSE23334: Active Creb3L1 can upregulate secretory pathway genes in HeLa cells GSE23346: CrebA is a major and direct regulator of secretory pathway gene expression Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: Deborah Andrew 

PROVIDER: E-GEOD-23349 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

The CrebA/Creb3-like transcription factors are major and direct regulators of secretory capacity.

Fox Rebecca M RM   Hanlon Caitlin D CD   Andrew Deborah J DJ  

The Journal of cell biology 20101101 3


Secretion occurs in all cells, with relatively low levels in most cells and extremely high levels in specialized secretory cells, such as those of the pancreas, salivary, and mammary glands. How secretory capacity is selectively up-regulated in specialized secretory cells is unknown. Here, we find that the CrebA/Creb3-like family of bZip transcription factors functions to up-regulate expression of both the general protein machinery required in all cells for secretion and of cell type-specific se  ...[more]

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