6.3.1.8	(2-[[([2-[(4-amino-4-carboxybutanoyl)amino]propanoyl]amino)methyl](hydroxy)phosphoryl]ethyl)(hydroxy)dioxophosphate(1-)	inhibits the reaction in the presence of spermidine	135155	
6.3.1.8	4-[(14-ammonio-5-hydroxy-1-methyl-5-oxido-2-oxo-6-oxa-3,10-diaza-5-phosphatetradec-1-yl)amino]-1-carboxy-4-oxobutan-1-aminium	-	61963	
6.3.1.8	4-[[2-([[[4-[(4-ammoniobutyl)amino]butyl](hydroxy)phosphoryl]methyl]amino)-1-methyl-2-oxoethyl]amino]-1-carboxy-4-oxobutan-1-aminium	-	61962	
6.3.1.8	buthionine sulfoximine	-	2076	
6.3.1.8	gamma-Aminobutyryl-L-Ala-Gly	5 mM, 10% inhibition	93433	
6.3.1.8	gamma-glutamyl-N-[[(3-aminopropoxy)(2-phosphonoethyl)phosphoryl]methyl]alaninamide	-	135154	
6.3.1.8	gamma-L-Glu-D-Phe-Gly	5 mM, 10% inhibition	93452	
6.3.1.8	gamma-L-Glu-L-Leu	5 mM, 10% inhibition	93462	
6.3.1.8	gamma-L-Glu-L-Leu-Gly	5 mM, 58% inhibition	93463	
6.3.1.8	gamma-L-Glu-L-leu-L-Ala	5 mM, 95% inhibition	93464