3.4.21.19 chloroplast stroma 9507 670502 3.4.21.19 cytoplasm recombinant expression as insoluble inclusion bodies 5737 667840 3.4.21.19 extracellular - - -, 649239, 650241, 669095, 691149, 691158, 731679, 81314, 81315, 81316 3.4.21.19 extracellular secretion to the culture medium during the late stages of growth - -, 650274 3.4.21.19 extracellular the enzyme is secreted - -, 709490 3.4.21.19 membrane bound 16020 651024