hydroxyproline-rich glycoprotein family protein. similar to cell wall protein precursor, putative [Arabidopsis thaliana] (TAIR:AT2G20870.1); similar to putative cell-wall P4 protein [Brassica napus] (GB:AAF29528.1); similar to putative cell-wall P8 protein [Brassica napus] (GB:AAF29529.1)