Anti-Delta-VPE | Vacuolar-processing enzyme delta-isozyme

Delta VPE (Vacuplar-Processing Enzyme delta-isozyme) is Asparagine specific endopeptidase that may be involved in processing of proteins targeted to vacuoles (By similarity) . The enzyme is probably involved in post-translational proteolysis of seed storage proteins in the protein storage vacuole of developing seeds (PubMed:12417707, PubMed:14688293) . Exhibits a caspase-1-like activity in extracellular granules. At the early stage of seed development, required for the formation of the seed coat, by regulating cell death of specific cell layers in inner integument (Nakaune et al. 2005) .

Subcellular localisation is seed specific and restricted to developing seeds at 7 days after anthesis, Delta-VPE is detected at lower levels in flowers siliques, specifically in seed coats

Kunieda et al. (2013) . Spatiotemporal secretion of PEROXIDASE36 is required for seed coat mucilage extrusion in Arabidopsis. Plant Cell . 2013 Apr;25 (4) :1355-67.doi: 10.1105/tpc.113.110072. (Western blot, Arabidopsis thaliana) Kunieda et al. (2008) . NAC family proteins NARS1/NAC2 and NARS2/NAM in the outer integument regulate embryogenesis in Arabidopsis. Plant Cell. 2008 Oct;20 (10) :2631-42.doi: 10.1105/tpc.108.060160. (Western blot, Arabidopsis thaliana) Nakaune et al. (2005) . A vacuolar processing enzyme, deltaVPE, is involved in seed coat formation at the early stage of seed development. Plant Cell. 2005 Mar;17 (3) :876-87. doi: 10.1105/tpc.104.026872. (Immunofluorescence, Immunolocalisation by electron microscopy, Western blot, Arabidopsis thaliana)

Store at -20°C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.