Table I.

Proteins identified using different databases

The table lists the total number of entries in each database, the total number of proteins identified in each database, the total number of unique proteins identified in each database, and the total number of proteins identified in the final data set in this study.

	Total entries in database used	Total number of proteins identified	Number of groups of sorted proteins	Number of unique proteins in rat database	Number of unique proteins in mouse database	Number of unique proteins in human database	Final identified proteins
Rat	52,881	4,652	1,891	1,608			1,608
Mouse	112,998	7,818	3,178		135		135
Human	97,361	5,760	2,345			90	90
Total	262,200	18,230	7,414	1,608	135	90	1,833