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Literature summary for 2.4.1.25 extracted from

  • Weiss, S.C.; Skerra, A.; Schiefner, A.
    structural basis for the interconversion of maltodextrins by MalQ, the amylomaltase of Escherichia coli (2015), J. Biol. Chem., 290, 21352-21364.
    View publication on PubMed

Cloned(Commentary)

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

Crystallization (Commentary)

Crystallization (Comment) Organism
hanging drop vapor diffusion method, using 20% (w/v) PEG-3350 Escherichia coli

Inhibitors

Inhibitors Comment Organism Structure
acarbose
-
Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
78500
-
x * 78500, calculated from amino acid sequence Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
maltodextrin + maltose Escherichia coli
-
maltooligosaccharides + alpha-D-glucose
-
?

Organism

Organism UniProt Comment Textmining
Escherichia coli P15977
-
-

Purification (Commentary)

Purification (Comment) Organism
iminodiacetic acid-Sepharose column chromatography and Superdex 200 gel filtration Escherichia coli

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
maltodextrin + maltose
-
Escherichia coli maltooligosaccharides + alpha-D-glucose
-
?
maltose + maltose
-
Escherichia coli maltooligosaccharides + D-glucose
-
?
maltotriose + maltotriose
-
Escherichia coli maltooligosaccharides + D-glucose
-
?

Subunits

Subunits Comment Organism
? x * 78500, calculated from amino acid sequence Escherichia coli

Synonyms

Synonyms Comment Organism
amylomaltase
-
Escherichia coli
MalQ
-
Escherichia coli