Parallel β/α‐barrels of α‐amylase, cyclodextrin glycosyltransferase and oligo‐1,6‐glucosidase versus the barrel of β‐amylase: Evolutionary distance is a reflection of unrelated sequences
- 17 October 1994
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 353 (2), 119-123
- https://doi.org/10.1016/0014-5793(94)01019-6
Abstract
The structures of functionally related β/α-barrel starch hydrolases, α-amylase, β-amylase, cyclodextrin glycosyltransferase and oligo-1,6-glucosidase, are discussed, their mutual sequence similarities being emphasized. Since these enzymes (except for β-amylase) along with the predicted set of more than ten β/α-barrels from the α-amylase enzyme superfamily fulfil the criteria characteristic of the products of divergent evolution, their unrooted distance tree is presented.Keywords
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