1.1.1.23 chloroplast - 9507 741455, 762423 1.1.1.23 chloroplast encoded as proenzyme with amino terminal extension with composition of chloroplast transit peptides 9507 286328 1.1.1.23 chloroplast enzyme contains chloroplast transit peptide sequence 9507 286326 1.1.1.23 soluble - - -, 721426