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_5258	CBP1_HORVU	--NA--	"Hordeum vulgare"	Poaceae	--NA--	Signaling-peptide	"Carboxypeptidase; Direct protein sequencing; Glycoprotein; Hydrolase; Protease; Secreted; Signal; Zymogen | Serine carboxypeptidase 1 precursor (EC 3.4.16.5) (Serine,carboxypeptidase I) (Carboxypeptidase C) (CP-MI) [Contains: Serine,carboxypeptidase 1 chain A (Serine carboxypeptidase I chain A); Serine,carboxypeptidase 1 chain B (Serine carboxypeptidase I chain B)].Secreted. Note=Secreted into the endosperm."	--NA--	DYETGDLKTATDSHTFLLKWFQLYPEFLSNPFYIAGESYAGVYVPTLSHEEHGPFNFESGGSVKSLPKLHLNPYAWSKVSTMIYLDSPAGVGLSYSKNVSHYAGYVTVDEGHGRNLFYYVVESERDPGKDPVVLWLNGGPGCSSFDGFVYMARCRRRSGCTAGAALLLLLALALSGGGGAAPQGAEVTGLPGFDGALPSKMIAYHKNLTSQGYRAIIFSGDHDMCVPFTGSEAWTKSLGYGVVDSWRPWINLQNSKLPQSFKDLGTTNKPFPVRTRMLGRAWPLRAPVKAGRVPSWQEVAQASTSCHGNYWNATDGKCDTAISKIESLISGLNIYDILEPCYHSRSIKEVSGVPCMSDEVATAWLDNAAVRSAIHAQSVSAIGPWLLCTDKLYFVHDAGSTNGQVSGYTEGYEHGLTFATIKGAGHTVPEYKPQEAFAFYSRWLAGSKLVVKGIQGGAKPTINFKGYMVGNGVCDTIFDGNALVPFAHGMGLISDEIYQ	499	"Experimental evidence at protein level"	54096.14	54061.7	6.45	--NA--	"FUNCTION:May be involved in the degradation of small peptides (2- 5 residues) or in the degradation of storage proteins in the embryo.CATALYTIC ACTIVITY:Release of a C-terminal amino acid with broad specificity.SUBUNIT:Carboxypeptidase I is a dimer, where each monomer is composed of two chains linked by disulfide bonds.DEVELOPMENTAL STAGE:After one day of germination, mainly found in the scutellum of the developing grain; barely detectable after four days, and absent from the mature grain. A lower level of expression is seen in the aleurone both during development and germination.PTM:The linker peptide is endoproteolytically excised during enzyme maturation.SIMILARITY:Belongs to the peptidase S10 family."