Proteins identified by Mass Spectrometry.

Pooled cation exchange chromatography fractions (Fig 4c) from BALF-SEA and corresponding BALF-BSS fractions were lyophilized, and identified as described in Material and Method section.*Percentage of the entire protein sequence that is covered by the sequences of the identified peptides.**Peptides identified with score greater than identity score.***Peptides identified with score between homology score and identity score.Proteins identified by Mass Spectrometry.

将来自BALF-SEA（支气管肺泡灌洗液-SEA）的混合阳离子交换色谱分级组分（图4c）及其对应的BALF-BSS分级组分进行冷冻干燥，并参照材料与方法部分所述流程完成鉴定。
* 已鉴定肽段序列覆盖对应蛋白全序列的占比。
** 得分高于同一性得分的肽段。
*** 得分介于同源性得分与同一性得分之间的肽段。
经质谱鉴定得到的蛋白质。