Selected proteins identified by LC-MS/MS analysis from the insoluble fraction of wild type (WT) or stefin B knock out (KO) astrocytes.

Proteins stressed in bold were increased in stefin B KO cells. Database searches were performed on a mouse database (www.uniprot.org) using the MaxQuant software [44], [45]. Relative label-free quantification (LTQ) was performed by spectral counting. Mass spectra were recorded twice for the wild type and three times for the knock out sample. Results of one experiment are shown. Posterior error probability (PEP) is the probability of a false hit given the peptide identification and length of peptides. MS/MS count column represents the number of recorded spectra.