2.4.1.18 amyloplast - 9501 718799 2.4.1.18 amyloplast developing 9501 -, 736465 2.4.1.18 cytoplasm - 5737 -, 756956 2.4.1.18 extracellular - - 705085 2.4.1.18 additional information more than 95% of the recombinant enzyme is present within the cells as insoluble but catalytically active aggregate. Heat treatment of the aggregate suspension at 70°C results in about 30% solubilization of the enzyme activity - 636942 2.4.1.18 plastid isoform SBE A is found predominantly in the soluble phase of the tuber extracts, indicating a stromal location within the plastid 9536 636947 2.4.1.18 soluble - - -, 701786 2.4.1.18 soluble in the soluble fraction, the amount of SBE IIa protein is two to three fold higher than SBIIb - 660327 2.4.1.18 soluble SBE2 is present in the soluble fraction, SBE1 is associated with the starch granule fraction - 636954 2.4.1.18 soluble the purified full-length enzyme is poorly soluble and forms aggregates, which are inactive, at concentrations above 1 mg/ml. In contrast, the truncated form can be concentrated to 6 mg/ml without a visible sign of aggregation or loss of activity on concentration - 636953