Preparation of the spike-in metaproteome samples

JZ Jinzhi Zhao
YY Yi Yang
HX Hua Xu
JZ Jianxujie Zheng
CS Chengpin Shen
TC Tian Chen
TW Tao Wang
BW Bing Wang
JY Jia Yi
DZ Dan Zhao
EW Enhui Wu
QQ Qin Qin
LX Li Xia
LQ Liang Qiao
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Similar with the 12-species simulated communities, we constructed another three samples by mixing 6 species at different cell numbers (Supplementary Table 4). After that, bacterial proteins were extracted from the 6-species mixtures. For each mixture, 1 μg of bacterial proteins were taken and then spiked into 99 μg of microbial proteins extracted from the fecal sample to form the spiked samples.

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