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_4115	LAC15_ARATH	--NA--	"Arabidopsis thaliana"	Brassicaceae	--NA--	Signaling-peptide	"Apoplast; Complete proteome; Copper; Glycoprotein; Lignin degradation; Metal-binding; Oxidoreductase; Repeat; Secreted; Signal | Laccase-15 precursor (EC 1.10.3.2) (Benzenediol:oxygen oxidoreductase,15) (Urishiol oxidase 15) (Diphenol oxidase 15) (Protein TRANSPARENT,TESTA 10).Secreted, extracellular space, apoplast (Potential)."	--NA--	ADHEVPIILGEWWKRDVREVVEEFVRTGGAPNVSDALTINGHPGFLYPCSGPIIKVHKGDTIYVNVQNRASENITMHWHGVEQPRNPWSDGPEYITQCPIIKGVYGTRFPEFPPLIFNFTAENQPLFLETPRLATEVKVIEFGQVVELVIKATYITISPGETLDMLLHADQDPERTYYMAARAYQSGNIDFNNSTTIGILKSDTFHLTVEKGKTYRIRMVNAAMNLPLFFAIANHSLTVVSADGHYIKPIMSHSFFNLFLISLFLYNNCIAHHYTFTVREVPYTKLCSTKAILTVNSQFPNTMTVPRNGWIAIRFVADNPGVWFMHCHLDRHQTWGMNVVFIVKNGREPNQGTSLVGGGLDHPMHLHGFSFYVVGVGFGNYNISEEDPSSRYNLYDPPYKQQILPPPDDLPPCYERIITTVSINLRMCPQNSCEGPNGSRLAASMNNISFVTPSHVDILKAYYYHRPGSDFLYKVIFSIEDTTVWWHAHSSWTRATVHGLIFVYPRPPQILPFPKSYTSSCKAKTSSFSGYYPTLPFYNDTSAAFGFFTKIKCLFSGQVPVQISR	565	"Experimental evidence at protein level"	63994.06	63953.01	7.16	--NA--	"FUNCTION:Lignin degradation and detoxification of lignin-derived products (By similarity). Involved in lignin synthesis in seed coats, in seed coat permeability, in seed germination, and in root elongation. Required for the seed coat (testa) brown pigmentation by mediating the polymerization of proanthocyanidin (tannin) from its monomer precursor epicatechin. Promotes sligthly seed dormancy.CATALYTIC ACTIVITY:4 benzenediol O(2) = 4 benzosemiquinone 2 H(2)O.COFACTOR:Binds 4 copper ions per monomer (By similarity).TISSUE SPECIFICITY:Mostly expressed in siliques, particularly in developping seeds. Also detected at low levels in stems, seedlings, and flowers.DEVELOPMENTAL STAGE:Transcript levels increase during rosette leaves development. In the inflorescence stem, highest levels in the young, developing tip and lowest levels in the basal stem tissues. Strong increase 4 days after fertilization. Specifically localized in developping seed coat (testa). Detected in the endothelium and in the pigment strand at the chalaza zone during early stages of embryo morphogenesis. Later, the activity increased and spread to the outer integument, mostly in the oil penultimate cell layer. Strongly expressed in early aborted seeds and in the transmitting tissue of the silique.SIMILARITY:Belongs to the multicopper oxidase family.SIMILARITY:Contains 3 plastocyanin-like domains.SEQUENCE CAUTION:Sequence=BAB11074.1; Type=Erroneous gene model prediction; "