To link to the content of EndoNet use the EndoNet ID that is given on the detail pages in the format ENX0000, where X is a place holder for the type of the component (e. g. R for receptor or C for anatomical structure). As URL for the linking append this ID to the detail page for this type of component. For an hormone that would be:
http://endonet.bioinf.med.uni-goettingen.de/hormone/ENH00000
It is also possible to use the search of EndoNet to link to the right detail page. The URL should look like
http://endonet.bioinf.med.uni-goettingen.de/search/ENC00000
AACEPVRIP LCKSLPWNM TKMPNHLHH STQANAILA IEQFEGLLG THCSPDLLF FLCAMYAPI CTIDFQHEP IKPCKSVCE RARQGCEPI LIKYRHSWP ENLACEELP VYDRGVCIS PEAIVTADG ADFPMDSSN GNCRGASSE RCKCKPIRA TQKTYFRNN YNYVIRAKV KEIKTKCHD VTAVVEVKE ILKSSLVNI PRDTVNLYT SSGCLCPPL NVNEEYIIM GYEDEERSR LLLVEGSIA EKWKDRLGK KVKRWDMKL RHLGLSKSD SSNSDSTQS QKSGRNSNP RQARN