CSH1 GI:12408687 chorionic somatomammotropin hormone 1 isoform 3 1 mapgsrtsll lafallclpw lqeagavqtv plsrlfdham lqahrahqla 50 51 idtyqefrle dgsrrtgqil kqtyskfdtn shnhdallkn ygllycfrkd 100 101 mdkvetflrm vqcrsvegsc gf