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_5243	PER57_ARATH	--NA--	"Arabidopsis thaliana"	Brassicaceae	--NA--	Signaling-peptide	"Calcium; Complete proteome; Heme; Hydrogen peroxide; Iron; Metal-binding; Oxidoreductase; Peroxidase; Pyrrolidone carboxylic acid; Secreted; Signal | Peroxidase 57 precursor (EC 1.11.1.7) (Atperox P57) (PRXR10) (ATP13a).Secreted (By similarity)."	--NA--	DVTLPGPTISVSGAVSLFTNKGMNTFDAVALLGAHTVGQGNCGLFSDRITIKAQLEAACPSTVSCADIVTLATRDSVALAGGPSYSIPTGRRDGRVSNNLMMKGAKFSSLLVLFFIFPIAFAQLRVGFYSQSCPQAETIVRNLVRQRFGVRNGEIRRNCRRFNRRGVLQVDQRLASDPQTRGIVARYANNNAFFKRQFVRAMVKMGAVDVLTGSFQGTGRPDPSMDPALVTSLRNTCRNSATAALDQSSPLRFDNQFFKQIRKTPTVTAALLRMHFHDCFVKGCDASLLIDSTNSEKTAGPNGSVREFDLIDR	313	"Experimental evidence at protein level"	34098.04	34076.47	10.1	--NA--	"FUNCTION:Removal of H(2)O(2), oxidation of toxic reductants, biosynthesis and degradation of lignin, suberization, auxin catabolism, response to environmental stresses such as wounding, pathogen attack and oxidative stress. These functions might be dependent on each isozyme/isoform in each plant tissue.CATALYTIC ACTIVITY:Donor H(2)O(2) = oxidized donor 2 H(2)O.COFACTOR:Binds 1 heme B (iron-protoporphyrin IX) group per subunit (By similarity).COFACTOR:Binds 2 calcium ions per subunit (By similarity).TISSUE SPECIFICITY:Mainly expressed in roots.INDUCTION:Positively light-regulated during the firt stage of development. Up-regulated transiently by a cold treatment. Induced in shoots of plants subjected to a long Fe deficiency stress.Down-regulated by salicylic acid, a plant defense-related signaling molecule.MISCELLANEOUS:There are 73 peroxidase genes in A.thaliana.SIMILARITY:Belongs to the peroxidase family. Classical plant (class III) peroxidase subfamily."