INSL4 GI:4504711 insulin-like 4 precursor 1 maslfrsylp aiwlllsqll reslaaelrg cgprfgkhll sycpmpektf 50 51 tttpggwlle sgrpkemvst snnkdgqalg ttsefipnls pelkkplseg 100 101 qpslkkiils rkkrsgrhrf dpfccevicd dgtsvklct