Purity > 90% as determined by SDS-PAGE. MW: 62.8kDa. Partial: 25-560aa. N-terminal 6xHis-tagged. Rattus norvegicus (Rat). Inhibits the dipeptidyl peptidase activity of DPP4. Cell surface proteoglycan that bears heparan sulfate. May be involved in the suppression/modulation of growth in the predominantly mesodermal tissues and organs. May play a role in the modulation of IGF2 interactions with its receptor and thereby modulate its function. May regulate growth and tumor predisposition.