Table 1.

No. of PSMs identified using different protein databases

Standard dataset	No. of PSMs using human database	No. of PSMs using HM database
		HU	SH	MU (mismatched)
SET60	126,368	40,870	83,521	992
SET70	130,204	46,120	82,395	838
SET80	122,692	46,124	75,319	605
SET90	122,295	50,258	71,293	314

Note: PSM, peptide spectrum match; HM, human–mouse combined; HU, human-unique; SH, human–mouse shared; MU, mouse-unique.