. 2000 Jul 11;97(15):8705–8710. doi: 10.1073/pnas.120168097

Table 5.

Subcellular localization of AGPPase in cultured sycamore cells

Enzyme	Protopast lysate activity, milliunits/mg of protein	Stepped Percoll gradient centrifugation
Enzyme	Protopast lysate activity, milliunits/mg of protein	Amyloplast activity, milliunits/mg of protein	Amyloplast as % of lysate	Recovery range, %
ADH	2563 ± 1331	0.13 ± 0.03	0.006 ± 0.01	110 ± 31
α-Mannosidase	325 ± 63	0.13 ± 0.09	0.042 ± 0.02	83 ± 26
PPase	4356 ± 1040	43.7 ± 8.71	1.0 ± 0.20	82 ± 14
AGPPase	16.5 ± 7.2	0.17 ± 0.06	1.0 ± 0.17	120 ± 39

Data are presented as the mean ± SD obtained from six separate preparations.