Method for producing 1,5-pentamethylenediamine, mutant lysine decarboxylase, method for producing 1,5-pentamethylene diisocyanate and method for producing polyisocyanate composition
A mutant lysine decarboxylase is produced by replacing at least one of the amino-acids in the amino acid sequence shown in sequence ID No. 4 of the sequence listing with another amino-acid.