other polyamines , including putrescine , cadaverine , nh2 ( ch2 ) 2nh ( ch2 ) 2nh2 , and ch3nh ( ch2 ) 3nhch3 , at concentrations of 1 to 100 microm , inhibited the binding of [ 3h ] mk-801 in the presence of spermine , l-glutamate , and glycine but not in the presence of only l-glutamate and glycine .
C0032433
polyamines
C0002508
nh2