RLN2 GI:20143933 relaxin 2 isoform 1 preproprotein 1 mprlfffhll gvclllnqfs ravadswmee viklcgrelv raqiaicgms 50 51 twskrslsqe dapqtprpva eivpsfinkd tetinmmsef vanlpqelkl 100 101 tlsemqpalp qlqqhvpvlk dssllfeefk klirnrqsea adsspselky 150 151 lgldthsrkk rqlysalank cchvgctkrs larfc