Catalyzes the aminotransferase reaction from putrescine to 2-oxoglutarate, leading to glutamate and 4-aminobutanal, which spontaneously cyclizes to form 1-pyrroline. Is also able to transaminate cadaverine and, in lower extent, spermidine, but not ornithine.

Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family. Putrescine aminotransferase subfamily.

459 amino acids

MNRLPSSASALACSAHALNLIEKRTLNHEEMKALNREVIDYFKEHVNPGFLEYRKSVTAGGDYGAVEWQAGSLNTLVDTQGQEFIDCLGGFGIFNVGHRNPVVVSAVQNQLAKQPLHSQELLDPLRAMLAKTLAALAPGKLKYSFFCNSGTESVEAALKLAKAYQSPRGKFTFIATSGAFHGKSLGALSATAKSTFRRPFMPLLPGFRHVPFGNIDAMSMAFSEGKKTGDEIAAVILEPIQGEGGVILPPQGYLTEVRKLCDEFGALMILDEVQTGMGRTGKMFACEHENVQPDILCLAKALGGGVMPIGATIATEEVFSVLFDNPFLHTTTFGGNPLACAAALATINVLLEQNLPAQAEQKGDTLLDGFRQLAREYPNLVHDARGKGMLMAIEFVDNETGYRFASEMFRQRVLVAGTLNNAKTTRIEPPLTLTIELCEQVLKSARNALAAMQVSVEEV

49.7 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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