| 别名 |
At5g20280, AtSPS, More, SPS, SPS A, SPS1, SPS11, Sps2, SPS6, SPS8, SPSII, sucrose 6-phosphate synthase, sucrose phosphate synthase, sucrose phosphate synthetase, sucrose phosphate-uridine diphosphate glucosyltransferase, sucrose-P synthase, sucrosephosphate-UDP glucosyltransferase, UDP-glucose-fructose-phosphate glucosyltransferase, UDP-glucose:D-fructose-6-phosphate 2-alpha-D-glucosyltransferase, uridine diphosphoglucose-fructose phosphate glucosyltransferase |
| Comments |
Requires Mg2+ or Mn2+ for maximal activity [2]. The enzyme from Synechocystis sp. strain PCC 6803 is not specific for UDP-glucose as it can use ADP-glucose and, to a lesser extent, GDP-glucose as substrates [2]. The enzyme from rice leaves is activated by glucose 6-phosphate but that from cyanobacterial species is not [2]. While the reaction catalysed by this enzyme is reversible, the enzyme usually works in concert with EC 3.1.3.24, sucrose-phosphate phosphatase, to form sucrose, making the above reaction essentially irreversible [3]. The F in sucrose 6F-phosphate is used to indicate that the fructose residue of sucrose carries the substituent. |
