3.4.21.102 additional information deletion of N-terminal amino acids 206-660, and deletion of C-terminal amino acids 1-334, both peptides are efficiently labelled by a competitive inhibitor of the enzyme marked with photoaffinity lable 137238 3.4.21.102 V229E increased Km for 2N-[[(1-sulfono-5-naphthyl)amino]ethyl]aminosuccinyl-Ala-Ala-Arg-Ala-Ala-[Nepsilon-[4-[4-(dimethylamino)phenylazo]benzoyl]lysyl]-(6-aminocaproyl)2-Glu-Asn-Tyr-Ala-Leu-Ala-Ala 137238 3.4.21.102 V229Q increased Km for 2N-[[(1-sulfono-5-naphthyl)amino]ethyl]aminosuccinyl-Ala-Ala-Arg-Ala-Ala-[Nepsilon-[4-[4-(dimethylamino)phenylazo]benzoyl]lysyl]-(6-aminocaproyl)2-Glu-Asn-Tyr-Ala-Leu-Ala-Ala 137238 3.4.21.102 L132M/L210M crystallization data of selenomethionyl derivative 137239 3.4.21.102 D369A hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242 3.4.21.102 D441A no hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242 3.4.21.102 D441N hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242 3.4.21.102 D505A hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242 3.4.21.102 E433A no hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242 3.4.21.102 E449A hydrolysis of the 105 variant of N-terminal domain of lambda repressor 137242