Term Name:	N-terminal N,N,N-trimethyl-L-seryl-L-prolyl-L-lysyl(2+) residue
Synonyms:	N-terminal N,N,N-trimethyl-L-seryl-L-prolyl-L-lysine residue
Definition:	A cationic peptidyl group obtained by protonation of the side-chain amino groups of N-terminal N,N,N-trimethyl-L-seryl-L-prolyl-L-lysyl residue. Major microspecies at pH 7.3.
Ontology:	ChEBI [CHEBI:138317]  ( EBI )