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_5363	CKX3_ARATH	--NA--	"Arabidopsis thaliana"	Brassicaceae	--NA--	Signaling-peptide	"Complete proteome; Endoplasmic reticulum; FAD; Flavoprotein; Glycoprotein; Oxidoreductase; Signal; Vacuole | Cytokinin dehydrogenase 3 precursor (EC 1.5.99.12) (Cytokinin oxidase,3) (CKO 3) (AtCKX3).Endoplasmic reticulum. Vacuole."	--NA--	EKDVTYMDFLNRVRTGELNLKSKGQWDVPHPWLNLFVPKTQISKFDDGVFHLRIASMVKRHRVIYCLEVVKYYDETSQYTVNEEMEELSDSLNHVRGFMYKGIILRNNITSGPVLVYPMNRNKWNDRMSAAIPEEDVFYAVGFLRSAGFDKYKYDPKMILSPGQNIFQKINSSMASYNLRSQVRLIAITIVIIITLSTPITTNTSPQPWNILSHNEFAGKLTSNWEAFDQENMEILKFCEDANMGVIQYLPYHSSQEGWVRHFGPRWNIFVERRFLYIDFSEFTRDQERVISKTDGVDFLEGSIMVDHGPPDNWRSTYYPPSDRGHGHSHRGQASAKDGVVVNMRSMVNRDRGIKVSRTCLYVDVDAAWLWIESSSSVESAATDFGHVTKIFPSAVLIPSSVEDITDLIKLSFDSQLSFPLAAVITGKGEIATCSKDMNSDLFFAVLGGLGQFGIITRARIKLEVAPKRAKWLVLNKTLELGLTPVSWTDYLYLTVGGTLSNGGISGQTFRYGPQITNVLEMD	523	"Experimental evidence at protein level"	59422.73	59385.04	6.35	--NA--	"FUNCTION:Catalyzes the oxidation of cytokinins, a family of N(6)- substituted adenine derivatives that are plant hormones, where the substituent is an isopentenyl group.CATALYTIC ACTIVITY:N(6)-dimethylallyladenine acceptor H(2)O = adenine 3-methylbut-2-enal reduced acceptor.COFACTOR:FAD (By similarity).BIOPHYSICOCHEMICAL PROPERTIES:Kinetic parameters: KM=7.2 uM for isopentenyladenine; Vmax=7.7 nmol/h/mg enzyme;TISSUE SPECIFICITY:Very weak expression in the young shoot tissues around two weeks after germination.SIMILARITY:Belongs to the oxygen-dependent FAD-linked oxidoreductase family."