Method for Rapid Protein Identification in a Large Database

Table 1

Scale change in nonspecific digestion.

DB	Version	Fasta size (MB)	No. of proteins	No. of peptide fragments	Index size (GB)
ipi.HUMAN	3.87	48.71	91,491	1,939,985,477	44.44
UNIPROT-SPROT	201108	240.51	532,234	9,964,797,926	235.51

Note: peptide mass is 300–8000 Dalton. Peptide length is 3–60 amino acids.