Levansucrase

UniProtKB accession:  P05655

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UniProtKB description:  Catalyzes the synthesis of levan, a fructose polymer, by transferring the fructosyl moiety from sucrose to a growing acceptor molecule (PubMed:14517548, PubMed:18596022, PubMed:32553967, PubMed:33303628, PubMed:4206083). Also displays sucrose hydrolase activity (PubMed:18596022, PubMed:32553967, PubMed:33303628, PubMed:4206083). At low sucrose concentrations, functions as an hydrolase with water as acceptor, whereas at higher substrate concentrations it adds fructosyl units to a growing levan chain (PubMed:4206083).