The Chinese Hamster peptide spectral library was created from data obtained from Dr. Michael J. Betenbaugh’s laboratory at Johns Hopkins University (http://betenbaugh.org/) and an unpublished 2D study of the tryptic digestion of CHO cells  done at NIST. 

For further information on the JHU data see:

(1) Heffner, K.M.; Hizal, D.B.; Yerganian, G.S.; Kumar, A.; Can, Ö.; O'Meally, R.; Cole, R.; Chaerkady, R.; Wu, H.; Bowen, M.A.; Betenbaugh, M.J. "Lessons from the Hamster: Cricetulus griseus Tissue and CHO Cell Line Proteome Comparison." J Proteome Res. 2017, 16, 3672-3687.

(2) Kumar, A.; Baycin-Hizal, D.; Wolozny, D.; Pedersen, L.E.; Lewis, N.E.; Heffner, K.; Chaerkady, R.; Cole, R.N.; Shiloach, J.; Zhang, H.; Bowen, M.A.; Betenbaugh, M.J. "Elucidation of the CHO Super-Ome (CHO-SO) by Proteoinformatics." J Proteome Res. 2015, 14, 4687-4703.

(3) Baycin-Hizal, D.; Tabb, D.L.; Chaerkady, R.; Chen, L.; Lewis, N.E.; Nagarajan, H.; Sarkaria, V.; Kumar, A.; Wolozny, D.; Colao, J.; Jacobson, E.; Tian, Y.; O'Meally, R.N.; Krag, S.S.; Cole, R.N.; Palsson, B.O.; Zhang, H.; Betenbaugh, M.J. "Proteomic Analysis of Chinese Hamster Ovary Cells". J Proteome Res. 2012, 11, 5265-5276.