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. 2012 Aug 16;1:13. doi: 10.1186/2193-1801-1-13

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© Zuo et al.; licensee Springer. 2012

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Molecular mass determination. (A): SDS-PAGE analysis. Lane 1, PTL purified by DEAE-sepharose chromatography. Lane 2, active fraction on PHE-sepharose chromatography. Lane 3, Molecular mass reference markers(beta-galactosidase (E. coli) (116.0 kDa), BSA(66.2 kDa), ovalbumin (45.0 kDa), lactate dehydrogenase (35.0 kDa), restriction endozyme (25.0 kDa), beta-lactoglobulin (18.4 kDa) and a-lactalbumin (14.4 kDa)). (B): Native molecular mass estimation of the lectin by gel filtration. Standard markers: BSA (67 kDa), Galanthus nivalis agglutinin (48 kDa), soybean trypsin inhibitor (30.2 kDa), trypsin (23.3 kDa) and cytochrome C (12.5 kDa). The molecular weight size markers (◆) and the lectin (○) are indicated. (C): Molecular mass determination by MALDI-TOF.