PPepDB-ID	"Peptide Name"	PMID	"Plant source"	"Plant Family"	"Peptide Family"	"Peptide function"	"Peptide function description"	"Activity against"	Sequence	"Sequence Length"	Validation	"Avg. Molecular wt(Da)"	"Monoisotopic molecular wt(Da)"	pI	Method	"Additional information"
PPepDB_5647	API4_SOLTU	--NA--	"Solanum tuberosum"	Solanaceae	--NA--	Signaling-peptide	"Aspartic protease inhibitor; Glycoprotein; Protease inhibitor; Serine protease inhibitor; Signal; Vacuole | Aspartic protease inhibitor 4 precursor (API-13) (PI13).Vacuole (By similarity)."	--NA--	GKRRLALVSENPLDVLFQEVIGQADSSYFKIVKSSKFGYNLLYCPITRHFLCPFCRDDNFCAKVGVDIQNIPLSTNIFEDQLLNIQFNIPTVKLCVSYRNWKVGNLNAHLWTMLLETGGTMMKCLFLLCLCLLPILVFSSTFTSQNPINLPSESPVPKPVLDTNGKELNPNSSYRIISIGRGALGGDVYLGKSPNSDAPCPDGVFRYNSDVGPSGTPVRF	220	"Experimental evidence at transcript level"	24375.22	24359.42	8.37	--NA--	"FUNCTION:Inhibits tightly cathepsin D (aspartic protease) and weakly trypsin (serine protease). May protect the plant by inhibiting proteases of invading organisms.TISSUE SPECIFICITY:Tubers.INDUCTION:By jasmonate.SIMILARITY:Belongs to the protease inhibitor I3 (leguminous Kunitz-type inhibitor) family."