PROK2 GI:187167261 prokineticin 2 isoform a precursor 1 mrslccapll lllllpplll tpragdaavi tgacdkdsqc gggmccavsi 50 51 wvksirictp mgklgdschp ltrknnfgng rqerrkrkrs krkkevpffg 100 101 rrmhhtcpcl pglaclrtsf nrficlaqk