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_4314	GGPP4_ARATH	--NA--	"Arabidopsis thaliana"	Brassicaceae	--NA--	Signaling-peptide	"Carotenoid biosynthesis; Complete proteome; Endoplasmic reticulum; Isoprene biosynthesis; Multifunctional enzyme; Signal; Transferase | Geranylgeranyl pyrophosphate synthetase 4 precursor (GGPP synthetase,4) (GGPS4) [Includes: Dimethylallyltranstransferase (EC 2.5.1.1);,Geranyltranstransferase (EC 2.5.1.10); Farnesyltranstransferase,(EC 2.5.1.29)].Endoplasmic reticulum."	--NA--	AIFARKDTREFLDSSIKLVNEEDDFGFSFDFKPYMISKAETINRALDEAIEYIHVHKTGSLLEASAVIGAVIGGGTEKEIEKVRNFARCIGLLFQVVDDIGFDSDKVKPLIALTNFIANRNHLDETKSSEELGKTAGKDKVAGKLTYPKVIGVEKSKEFVEKLKRDAREHLQLTEADVSSKKMVRAVKELAKSIGTKGLVAGQAKDLSSEGLEQNDVGLEDLMEAQNIFLYLLIVFLSLHFVFTTLKGRLSPANTRRLIRLLHIPIKSPVAAMIHTMSLIKDDLPCMDNDDLRRGKPTTHKVFGESVAILSGGALLALAFEHPLIEPLNIHKAMRYAILAGGKRVRPILCLAACELVGGEERLAIQAACAVE	372	"Experimental evidence at transcript level"	40935.57	40909.82	6.89	--NA--	"FUNCTION:Catalyzes the trans-addition of the three molecules of IPP onto DMAPP to form geranylgeranyl pyrophosphate.CATALYTIC ACTIVITY:Dimethylallyl diphosphate isopentenyl diphosphate = diphosphate geranyl diphosphate.CATALYTIC ACTIVITY:Geranyl diphosphate isopentenyl diphosphate = diphosphate trans,trans-farnesyl diphosphate.CATALYTIC ACTIVITY:Trans,trans-farnesyl diphosphate isopentenyl diphosphate = diphosphate geranylgeranyl diphosphate.PATHWAY:Isoprenoid biosynthesis; farnesyl-PP biosynthesis; farnesyl-PP from geranyl-PP and isopentenylPP:step 1/1.PATHWAY:Isoprenoid biosynthesis; geranyl-PP biosynthesis; geranyl-PP from dimethylallyl-PP and isopentenylPP:step 1/1.PATHWAY:Isoprenoid biosynthesis; geranylgeranyl-PP biosynthesis; geranylgeranyl-PP from farnesyl-PP and isopentenylPP:step 1/1.SUBUNIT:Monomer (By similarity).TISSUE SPECIFICITY:Faintly expressed in flowers.SIMILARITY:Belongs to the FPP/GGPP synthetase family."