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_5563	RNS2_PYRPY	--NA--	"Pyrus pyrifolia, Pyrus serotina"	Rosaceae	--NA--	Signaling-peptide	"Endonuclease; Glycoprotein; Hydrolase; Nuclease; Secreted; Signal | Ribonuclease S-2 precursor (EC 3.1.27.1) (S2-RNase).Secreted, extracellular space."	--NA--	FWRKQWYKHGSCASPALPNQKHYFETVIRMFLAEKQNVSRILSMATIEPEGKNRTLLEIQNAIRAGTNNMIPKLKCQKVNGMTELVEVTLCHDSNLTQFILFTVHGLWPSTKVGRDPEYCKTKRYRKIQRLEPQLEIIWPNVSDRKANRGMIYIFTMVFSLNVLILSSSAARYDYFQFTQQYQQAFCNSNPTPCKDPPDKNCPRPLPQASPYFCPIDDIQY	221	"Experimental evidence at protein level"	25749.75	25732.99	9.26	--NA--	"FUNCTION:Self-incompatibility (SI) is the inherited ability of a flowering plant to prevent self-fertilization by discriminating between self and non-self pollen during pollination. In many species, self-incompatibility is controlled by the single, multiallelic locus S.CATALYTIC ACTIVITY:Two-stage endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotides with 2',3'-cyclic phosphate intermediates.PTM:N-linked core structure at Asn-91, Asn-137, and Asn-153 contains xylose and at Asn-195 contains xylose and fucose.SIMILARITY:Belongs to the RNase T2 family.CAUTION:Gln-105 is present instead of the conserved Glu which is expected to act as an active site proton donor."