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. 2012 Jun 12;7(6):e38291. doi: 10.1371/journal.pone.0038291

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Yu 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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The phylogenetic tree was based on amino acid sequence in the variable regions of light chains. Among the 94 human Fab clones, 82 clones in purple represent human germline genes as specified by the VK1 family, 2 belong to VK3 family, 4 belong to VL1 family, 1 belongs to VL2 family, and 5 belong to VL3 family.