PTN GI:4506281 pleiotrophin 1 mqaqqyqqqr rkfaaaflaf ifilaavdta eagkkekpek kvkksdcgew 50 51 qwsvcvptsg dcglgtregt rtgaeckqtm ktqrckipcn wkkqfgaeck 100 101 yqfqawgecd lntalktrtg slkralhnae cqktvtiskp cgkltkpkpq 150 151 aeskkkkkeg kkqekmld