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The α-amylase from Tenebrio molitor larvae (TMA) was purified from a crude larval extract. After removal of the N-terminal pyroglutamate residue and identification of the following 17 residues by Edman sequencing, the cDNA of mature TMA was cloned from larval mRNA. The encoded enzyme consists of 471 amino acid residues and has 57–79% sequence identity to other insect α-amylases and also shows high...
The potent activator and chemoattractant for human neutrophils, neutrophil-activating peptide 2 (NAP-2), has been cloned and expressed in Escherichia coli. The protein has been purified to homogeneity (> 98%) by a series of chromatographic techniques, including reversed phase HPLC. The biological activity of recombinant human NAP-2 (rhNAP-2), characterized by the induction of elastase release from...
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