Keratin is the major protein in hair and nails.

角蛋白是毛发和指甲中的主要蛋白质。

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Eukaryotic cells use autophagy and the ubiquitin-proteasome system as their major protein degradation pathways.

真核细胞使用自噬和泛素蛋白酶体系统，作为它们主要的蛋白质降解通道。

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Gluten intolerance is caused by an abnormal immune response to gluten, the major protein in wheat and some other grains.

麸质是一种蛋白质，它是小麦和其它谷物的主要成分，对麸质不正常的免疫反应则是麸质不耐症的最终病因。

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"In the next five to ten years, most major protein therapies should become available in noninjectable forms, " predicts David Edwards of Alkermes, Lilly's partner for inhaled insulin.

FORBES: Waiting to Inhale

To the researchers' surprise, when they compared the sequence for their new protein with those already in the public databases, they discovered that it was actually the major vault protein.

ECONOMIST: Cell biology: The secret of the vaults | The

Rik Scheper and his colleagues at the Free University of Amsterdam inadvertently stumbled across the major vault protein when they were looking for proteins important in drug resistance in tumour cells.

ECONOMIST: Cell biology: The secret of the vaults | The