The invention discloses a
trehalose synthetase as well as encoding genes and application thereof. The
trehalose synthetase is a
protein comprising one of the following
amino acid residue sequences: 1) an SEQ ID No. 1
amino acid residue sequence in a sequence table; and 2) a
protein which is derived from the SEQ ID No. 1, has
trehalose synthetase related functions, and is obtained by replacing and / or deleting and / or adding the SEQ ID No. 1
amino acid residue sequence in the sequence table.
Trehalose can be obtained by using
maltose as a substrate and performing
catalysis with the application of the
protein of the trehalose synthetase; besides, the catalytic reaction has the advantages that the
catalysis time is short, the concentration of the required substrate is low, a 90mM
maltose is used as the substrate, the
catalysis time is 8 hours, and the conversion rate reaches 69 percent.