枇杷果实中的山梨醇-6-磷酸脱氢酶。
Sorbitol-6-phosphate dehydrogenase from loquat fruit.
机构信息
Okitsu Branch, Fruit Tree Research Station, Ministry of Agriculture, Forestry and Fisheries, Okitsu, Shizuoka, 424-02, Japan.
出版信息
Plant Physiol. 1979 Apr;63(4):715-7. doi: 10.1104/pp.63.4.715.
Abstract
Sorbitol-6-phosphate dehydrogenase was found in flesh tissue of mature fruit of the loquat (Eriobotrya japonica Lindl. var. Tanaka). The enzyme was purified about 30-fold from the crude extract of the fruit, and was demonstrated to catalyze sorbitol-6-phosphate + NADP right harpoon over left harpoon glucose-6-phosphate + NADPH. The optimal pH values for sorbitol 6-phosphate oxidation and glucose 6-phosphate reduction were 9.8 and 9.1, respectively.
摘要
在枇杷（Eriobotrya japonica Lindl. var. Tanaka）成熟果实的肉质组织中发现了山梨醇-6-磷酸脱氢酶。该酶从果实的粗提取物中被纯化了约 30 倍，并被证明能够催化山梨醇-6-磷酸+NADP 向右上钩住葡萄糖-6-磷酸+NADPH。山梨醇 6-磷酸氧化和葡萄糖 6-磷酸还原的最适 pH 值分别为 9.8 和 9.1。
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