ERp19 and ERp46, new members of the thioredoxin family of endoplasmic reticulum proteins.
[No authors listed]
摘要
Using a proteomic analysis of the luminal environment of the endoplasmic reticulum (ER), we have identified 141 proteins, of which 6 were previously unknown. Two newly discovered ER luminal proteins, designated ERp19 and ERp46, are related to protein disulphide isomerase. Western and Northern blot analyses revealed that both ERp19 and ERp46 and their respective mRNAs are highly expressed in the liver as compared with other tissues. Both proteins were enriched in purified liver ER vesicles and were localized specifically to the ER in McA-RH7777 hepatocytes. Functional analysis with yeast complementation studies showed that ERp46 but not ERp19 can substitute for protein disulphide isomerase function in vivo.
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基因功能
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原始数据
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文献解读
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