3.2.1.B36: maltose-forming alpha-amylase
This is an abbreviated version!
For detailed information about maltose-forming alpha-amylase, go to the full flat file.
Reaction
An exo-type maltose-forming alpha-amylase alpha-1,4- and alpha-1,6-glucan hydrolytic activity. It acts on the non-reducing end of the substrate and requires at least a G2 unit at its working site =
Synonyms
maltose-forming alpha-amylase, PSMA, Py04_0872, Pyrococcus ST04 alpha-amylase, TCMA
ECTree
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Subunits
Subunits on EC 3.2.1.B36 - maltose-forming alpha-amylase
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dimer
homotetramer
monomer
additional information
2 * 70191, recombinant enzyme, SDS-PAGE, in the dimeric structure, extensive interactions including Asn185-Gly327, Glu224-Lys241 and Gly327-Asn185 hydrogen bonds and a Glu224-Lys241 salt bridge between two (beta/alpha)7-barrels of the N-domains comprise the dimer associations
dimer
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2 * 70191, recombinant enzyme, SDS-PAGE, in the dimeric structure, extensive interactions including Asn185-Gly327, Glu224-Lys241 and Gly327-Asn185 hydrogen bonds and a Glu224-Lys241 salt bridge between two (beta/alpha)7-barrels of the N-domains comprise the dimer associations
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the enzyme structure shows a tight ring-shaped tetramer with monomers composed of two domains: an N-domain (amino acids 1-341) with a typical GH57 family (beta/alpha)7-barrel fold and a C-domain (amino acids 342-597) composed of alpha-helical bundles, two domains assemble to form a groove in the active site
additional information
-
the enzyme structure shows a tight ring-shaped tetramer with monomers composed of two domains: an N-domain (amino acids 1-341) with a typical GH57 family (beta/alpha)7-barrel fold and a C-domain (amino acids 342-597) composed of alpha-helical bundles, two domains assemble to form a groove in the active site
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