Pseudomonas stutzeri maltotetraose amylase

Figure 1. Synthesis of l-C-13-maltotetraose, using amylo-sucrase, isoamylase, and Pseudomonas stutzeri G4-amylase.

Naltotetraose-producing Amylases. An exo-acting amylase that produces predominantly maltotetraose from starch was demonstrated in culture fluid from Pseudomonas stutzeri by Robyt and Ackerman... 

There is an exo-acting bacterial a-amylase, elaborated by Pseudomonas stutzeri, that exclusively produces maltotetraose from starch [10]. The enzyme hydrolyzes maltotetraose units from the nonreducing ends of the starch chains, and, like P-amylase, it will not bypass the a-1 6 branch linkages of amy-... 

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