Updated project metadata. The associated files are mass spec data from 2 Size exclusion chromatography experiments. The material was a native extract prepared from the green leafy tissue of approximately two-week-old soy sprouts. For size calibration the extract for the second fractionation was spiked with three size markers (Sigma-Aldrich MWGF1000) Thyroglobulin, beta-amylase, and BSA.