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Literature summary for 5.4.99.16 extracted from

  • Xiuli, W.; Hongbiao, D.; Ming, Y.; Yu, Q.
    Gene cloning, expression, and characterization of a novel trehalose synthase from Arthrobacter aurescens (2009), Appl. Microbiol. Biotechnol., 83, 477-482.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Paenarthrobacter aurescens

Inhibitors

Inhibitors Comment Organism Structure
Ca2+ 98% residual activity at 5 mM Paenarthrobacter aurescens
Cu2+ complete inhibition at 5 mM Paenarthrobacter aurescens
EDTA 86% residual activity at 5 mM Paenarthrobacter aurescens
Mg2+ 92% residual activity at 5 mM Paenarthrobacter aurescens
Mn2+ 86% residual activity at 5 mM Paenarthrobacter aurescens
SDS complete inhibition at 1 mM Paenarthrobacter aurescens

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ 123% relative activity at 1 mM Paenarthrobacter aurescens
Mg2+ 118% relative activity at 1 mM Paenarthrobacter aurescens
Mn2+ 116% relative activity at 1 mM Paenarthrobacter aurescens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
68000
-
SDS-PAGE Paenarthrobacter aurescens

Organism

Organism UniProt Comment Textmining
Paenarthrobacter aurescens B8YM30
-
-
Paenarthrobacter aurescens CGMCC 1.1892 B8YM30
-
-

Purification (Commentary)

Purification (Comment) Organism
Ni-NTA column chromatography Paenarthrobacter aurescens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
maltose
-
Paenarthrobacter aurescens alpha,alpha-trehalose as a byproduct, about 13% glucose is also produced r
maltose
-
Paenarthrobacter aurescens CGMCC 1.1892 alpha,alpha-trehalose as a byproduct, about 13% glucose is also produced r

Synonyms

Synonyms Comment Organism
Trehalose synthase
-
Paenarthrobacter aurescens
TreS
-
Paenarthrobacter aurescens

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35
-
-
Paenarthrobacter aurescens

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40 60 the enzyme remains stable up to 40°C, and shows complete loss of activity at 60°C Paenarthrobacter aurescens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Paenarthrobacter aurescens

pH Stability

pH Stability pH Stability Maximum Comment Organism
5.5 7.5
-
Paenarthrobacter aurescens

Expression

Organism Comment Expression
Paenarthrobacter aurescens expression induction with 0.4 mM IPTG at 25°C for 5 h is the best condition for the expression of soluble TreS, higher temperature or IPTG concentrations lead to a higher rate of inclusion bodies, whereas a temperature below 20°C and lower IPTG concentrations decreases the total amount of TreS up