Literature summary for 3.2.1.141 extracted from

Asthana, R.K.; Nigam, S.; Maurya, A.; Kayastha, A.M.; Singh, S.P.
Trehalose-producing enzymes MTSase and MTHase in Anabaena 7120 under NaCl stress (2008), Curr. Microbiol., 56, 429-435.

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Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
4'-O-(1,4-alpha-D-glucosyl)n-alpha,alpha'-trehalose + H2O	Anabaena sp.	enzyme is up-regulated under NaCl stress, starting at about 36 hours of exposure, acts together with maltooligosyltrehalose synthase	(1,4-alpha-D-glucosyl)n + alpha,alpha'-trehalose	-	r
4'-O-(1,4-alpha-D-glucosyl)n-alpha,alpha'-trehalose + H2O	Anabaena sp. 7120	enzyme is up-regulated under NaCl stress, starting at about 36 hours of exposure, acts together with maltooligosyltrehalose synthase	(1,4-alpha-D-glucosyl)n + alpha,alpha'-trehalose	-	r

Organism

Organism	UniProt	Comment	Textmining
Anabaena sp.	-	7120, facing NaCl stress, grown in BG-11 medium free from combined nitrogen sources, continuous tungsten plus fluorescent illumination for trehalose hyperproduction	-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg]	Specific Activity Maximum [µmol/min/mg]	Comment	Organism
additional information	-	trehalose formation (combined action of MTHase and maltooligosyltrehalose synthase) upon NaCl exposure for 36 h: 0.069 mg/h/ml, 48 h: 0.117 mg/h/ml, 54 h: 0.094 mg/h/ml	Anabaena sp.

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
4'-O-(1,4-alpha-D-glucosyl)n-alpha,alpha'-trehalose + H2O	enzyme is up-regulated under NaCl stress, starting at about 36 hours of exposure, acts together with maltooligosyltrehalose synthase	Anabaena sp.	(1,4-alpha-D-glucosyl)n + alpha,alpha'-trehalose	-	r
4'-O-(1,4-alpha-D-glucosyl)n-alpha,alpha'-trehalose + H2O	enzyme is up-regulated under NaCl stress, starting at about 36 hours of exposure, acts together with maltooligosyltrehalose synthase	Anabaena sp. 7120	(1,4-alpha-D-glucosyl)n + alpha,alpha'-trehalose	-	r

Synonyms

Synonyms	Comment	Organism
maltooligosyltrehalose trehalohydrolase	-	Anabaena sp.
MTHase	-	Anabaena sp.

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Release 2023.1 (January 2023)