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. 2014 Apr 7;9(4):e93912. doi: 10.1371/journal.pone.0093912

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© 2014 Gu et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A: M, Protein markers, lane 1, purified Lac3, lane 2, endoglycosidase-H-treated Lac3; B: M, Protein markers, lane 1, purified Lac4, lane 2, endoglycosidase-H-treated Lac4.