期刊
JOURNAL OF CELL BIOLOGY
卷 167, 期 1, 页码 23-25出版社
ROCKEFELLER UNIV PRESS
DOI: 10.1083/jcb.200408117
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In addition to serving as the entry point for newly translated polypeptides making their way through the secretory pathway, the endoplasmic reticulum (ER) also synthesizes many lipid components of the entire endomembrane system. A report published in this issue implicates a signaling pathway known to respond to I:R unfolded protein load in the control of phospholipid biosynthesis by the organelle (Sriburi et al., 2004). The reasonable notion that demand for ER membrane is integrated with protein processing capacity was initially suggested by genetic analysis of yeast. The new data lend direct support for this idea and imply interesting mechanistic possibilities for how this coupling develops.
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