NXCI_051_G11_F NXCI (Nsf Xylem Compression wood Inclined) Pinus taeda cDNA clone NXCI_051_G11 5' similar to Arabidopsis thaliana sequence At2g20580 putative 26S proteasome regulatory subunit S2 see http://mips.gsf.de/proj/thal/db/index.html, mRNA sequence