The organic cationic group formed from L-prolinium; the major structure at pH 7.3 of the L-prolyl group, formed by protonation of the alpha-amino group.
L-pyrrolysiniumyl group
L-seriniumyl group
L-threoniniumyl group +
L-tryptophaniumyl group
L-tyrosiniumyl group
L-valiniumyl group
N(2),N(2),N(7)-trimethylguanosine 5'-triphosphate group