Table 2.

Composition of the multi-species iPtgxDB (trypsin)

Strains	RefSeq proteins	RefSeq sProteinsa	Extensions to RefSeq sProteinsa	Additional Prodigal sProteinsa	Additional ChemGenome sProteinsa	Additional in silico sProteinsa	Total iPtgxDB annotation clusters	Total iPtgxDB sProtein annotation clustersa
A. caccae	3440	295	129	106	2398	78,654	90,548	81,582
B. longum	1728	85	55	175	1338	43,506	59,156	45,159
B. producta	5682	577	305	306	3749	140,819	165,184	145,756
B. thetaiotaomicron	4941	463	274	279	3814	128,815	146,729	133,645
C. butyricum	4148	391	131	187	282	68,564	75,453	69,555
C. ramosum	3025	281	131	110	218	52,203	56,936	52,943
E. coli K-12	4411	551	295	128	3485	106,268	123,548	110,727
L. plantarum	3067	384	176	92	1611	72,764	80,137	75,027
Combined iPtgxDB	30,442	3027	1496	1383	16,895	691,593	797,691	714,394

^aDue to our focus on novel sProtein discovery, we list the respective number of sProteins for a given category